R5F21336MDFP#V2

User’s Manual E1/E20 Emulator Additional Document for User's Manual (Notes on Connection) Supported Devices: R8C Family / R8C/3x Series R8C Family / R8C/Lx Series Notes on R5F213MCQ have been added in the following pages of this document. Page 42  "4.13.1 [System] tab" Page 112 "Table 7.10 Program Area for the Emulator (R8C/3MQ)" All information contained in these materials, including products and product specifications, represents information on the product at the time of publication and is subject to change by Renesas Electronics Corporation without notice. Please review the latest information published by Renesas Electronics Corporation through various means, including the Renesas Electronics Corporation website (http://www.renesas.com). www.renesas.com Rev.2.01 Oct 2011 Notice 1. 2. 3. 4. 5. 6. 7. All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. 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E1/E20 Emulator Specifications ...............................................................................................................................7 2.1 Target MCUs.................................................................................................................................................................. 7 2.2 Emulator specifications.................................................................................................................................................. 7 2.3 Applicable tool chain and third-party products ............................................................................................................ 10 3. Designing the User System ....................................................................................................................................12 3.1 Connector for connecting the E1 or E20 emulator and the user system................................................................... 12 3.2 Small connector conversion adapter........................................................................................................................... 15 3.3 Connecting system ground.......................................................................................................................................... 16 3.4 Recommended connection example between the E1/E20 connecting connector and the MCU............................. 17 3.5 Interface circuit in the E1 or E20 emulator .................................................................................................................. 19 4. Preparations for Debugging....................................................................................................................................20 4.1 Activating High-performance Embedded Workshop .................................................................................................. 20 4.2 Creating a new workspace (with a toolchain not in use) ............................................................................................ 21 4.3 Creating a new workspace (with a toolchain in use) .................................................................................................. 23 4.4 Opening an existing workspace .................................................................................................................................. 25 4.5 Connecting the emulator.............................................................................................................................................. 26 4.5.1 Connecting the emulator................................................................................................................................26 4.5.2 Reconnecting the emulator............................................................................................................................26 4.6 Disconnecting the emulator ......................................................................................................................................... 26 4.6.1 Disconnecting the emulator ...........................................................................................................................26 4.7 Quitting the High-performance Embedded Workshop ............................................................................................... 26 4.8 Making debugging-related settings ............................................................................................................................. 27 4.8.1 Specifying a module for downloading............................................................................................................27 4.8.2 Setting up automatic execution of command line batch files.........................................................................28 4.9 Procedure for launching the E1/E20 emulator debugger ........................................................................................... 29 4.10 Setting the emulator debugger during startup .......................................................................................................... 31 4.11 [Initial Settings] dialog box ......................................................................................................................................... 32 4.11.1 [Device] tab ..................................................................................................................................................33 4.11.2 [Communication] tab....................................................................................................................................35 4.12 Showing the connection dialogs................................................................................................................................ 36 4.12.1 When the E1/E20 emulator is used in other emulator debuggers such as RX Family................................37 4.12.2 When the E1/E20 emulator firmware version is old ....................................................................................38 4.12.3 When the [Power supply] setting in the [Initial Settings] dialog box is incorrect..........................................39 4.12.4 When an ID code other than “FFFFFFFFFFFFFFh” is written in the ID code area ....................................40 4.12.5 When the emulator cannot communicate with the MCU .............................................................................41 4.13 [Configuration Properties] dialog box ........................................................................................................................ 42 4.13.1 [System] tab .................................................................................................................................................42 4.13.2 [MCU] tab.....................................................................................................................................................43 4.13.3 [Internal flash memory overwrite] tab ..........................................................................................................44 4.14 Starting up the R8C E1/E20 Emulator Debugger..................................................................................................... 45 5. Debugging Functions..............................................................................................................................................46 5.1 List of debugging functions.......................................................................................................................................... 46 5.2 Downloading a program .............................................................................................................................................. 48 5.3 Opening a source file................................................................................................................................................... 49 5.3.1 Viewing the source code................................................................................................................................49 5.3.2 Switching off a column in all source files .......................................................................................................50 5.3.3 Switching off a column in one source file ......................................................................................................50 5.3.4 Viewing the assembly-language code ...........................................................................................................51 5.3.5 Modifying the assembly-language code ........................................................................................................51 5.4 Memory access functions ............................................................................................................................................ 52 5.4.1 Memory read/write function ...........................................................................................................................52 5.4.2 Other memory operation functions ................................................................................................................52 5.4.3 Notes on accessing the SFR areas ...............................................................................................................53 5.5 Outline of break functions ............................................................................................................................................ 55 5.5.1 Forced break..................................................................................................................................................55 5.5.2 S/W break (software break) ...........................................................................................................................55 5.5.3 On-chip break ................................................................................................................................................55 R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 3 of 137 E1/E20 Emulator Contents 5.6 Using S/W breakpoints ................................................................................................................................................ 56 5.6.1 Adding/removing S/W breakpoints ................................................................................................................57 5.6.2 Enabling/disabling S/W breakpoints ..............................................................................................................58 5.7 Outline of on-chip break functions............................................................................................................................... 59 5.7.1 [On-Chip Event] dialog box............................................................................................................................59 5.7.2 [Event] tab......................................................................................................................................................60 5.7.3 [Before PC Break] tab....................................................................................................................................62 5.7.4 [Event] dialog box ..........................................................................................................................................63 5.7.5 [Event] dialog box (event type: data access).................................................................................................64 5.7.6 Notes on the event settings ...........................................................................................................................65 5.8 Adding on-chip events (DA events)............................................................................................................................. 66 5.8.1 Adding or changing from the [On-Chip Event] dialog box .............................................................................66 5.8.2 Dragging and dropping from other windows (addition only) ..........................................................................67 5.8.3 Deleting, enabling, or disabling from the [On-Chip Event] dialog box ...........................................................68 5.8.4 Command line................................................................................................................................................68 5.9 Adding on-chip events (PC event)............................................................................................................................... 69 5.9.1 Adding from the [On-Chip Event] dialog box .................................................................................................69 5.9.2 [On-chip Break points] column of the [Editor] window ...................................................................................70 5.9.3 Dragging and dropping from other windows (addition only) ..........................................................................71 5.9.4 Deleting, enabling, or disabling from the [On-Chip Event] dialog box ...........................................................72 5.9.5 Command Line ..............................................................................................................................................72 5.10 Registering events ..................................................................................................................................................... 73 5.10.1 [Registered Events] dialog box....................................................................................................................73 5.10.2 Registering events .......................................................................................................................................74 5.10.3 Creating events for each instance of usage or reusing events ...................................................................76 5.10.4 Activating events..........................................................................................................................................76 5.11 Saving/loading the set contents of on-chip events ................................................................................................... 77 5.11.1 Saving [On-Chip Event] Settings .................................................................................................................77 5.11.2 Loading the set contents of [On-Chip Event] settings .................................................................................77 5.12 Saving/loading the set contents of the [Registered Events] dialog box................................................................... 77 5.12.1 Saving [Registered Events] dialog box settings ..........................................................................................77 5.12.2 Loading the set contents of [Registered Events] dialog box settings..........................................................77 5.13 Trace function ............................................................................................................................................................ 78 5.13.1 Outline of trace function...............................................................................................................................78 5.13.2 Trace setting items ......................................................................................................................................79 5.13.3 Trace menu..................................................................................................................................................80 5.13.4 Branch trace.................................................................................................................................................80 5.13.5 Statistics.......................................................................................................................................................81 5.13.6 Saving trace information in files...................................................................................................................81 5.14 Status bar ................................................................................................................................................................... 82 5.15 Start/Stop function...................................................................................................................................................... 83 5.15.1 Opening the [Start/Stop function setting] dialog box ...................................................................................83 5.15.2 Specifying the routine to be executed .........................................................................................................83 5.15.3 Restrictions on the Start/Stop function ........................................................................................................84 5.15.4 Limitations on statements within specified routines.....................................................................................84 5.16 Simple stack overflow detection function .................................................................................................................. 85 5.17 Online help ................................................................................................................................................................. 85 6. Tutorial ....................................................................................................................................................................86 6.1 Introduction................................................................................................................................................................... 86 6.2 Starting the High-performance Embedded Workshop ............................................................................................... 86 6.3 Connecting the emulator.............................................................................................................................................. 86 6.4 Downloading the tutorial program ............................................................................................................................... 87 6.4.1 Downloading the tutorial program..................................................................................................................87 6.4.2 Displaying the source program ......................................................................................................................88 6.5 Setting S/W breakpoints .............................................................................................................................................. 89 6.6 Executing the program................................................................................................................................................. 90 6.6.1 Resetting the CPU .........................................................................................................................................90 6.6.2 Executing the program...................................................................................................................................90 6.7 Checking breakpoints .................................................................................................................................................. 91 6.7.1 Checking breakpoints ....................................................................................................................................91 6.8 Altering register contents ............................................................................................................................................. 92 R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 4 of 137 E1/E20 Emulator Contents 6.9 Referring to symbols .................................................................................................................................................... 93 6.10 Checking memory contents....................................................................................................................................... 94 6.11 Referring to variables................................................................................................................................................. 95 6.12 Showing local variables ............................................................................................................................................. 97 6.13 Stepping through a program...................................................................................................................................... 98 6.13.1 Executing [Step In].......................................................................................................................................98 6.13.2 Executing [Step Out]....................................................................................................................................99 6.13.3 Executing [Step Over]..................................................................................................................................99 6.14 Forcibly breaking program execution...................................................................................................................... 100 6.15 On-chip break facility ............................................................................................................................................... 101 6.15.1 Stopping a program when it executes the instruction at a specified address (pre-PC break) ..................101 6.15.2 Stopping a program when It accesses memory ........................................................................................102 6.16 Tracing facility .......................................................................................................................................................... 103 6.16.1 Showing the information acquired in tracing..............................................................................................104 6.17 Stack trace facility .................................................................................................................................................... 106 6.18 What next? ............................................................................................................................................................... 107 7. Notes on Using the E1 or E20 Emulator...............................................................................................................108 7.1 MCU resources used by the emulator ...................................................................................................................... 108 7.1.1 Program area for the emulator.....................................................................................................................108 7.1.2 Pins used by the E1 or E20 emulator ..........................................................................................................115 7.1.3 Interrupts (unusable)....................................................................................................................................115 7.1.4 Stack area used by the E1 or E20 emulator................................................................................................115 7.1.5 SFRs used by the E1/E20 emulator program..............................................................................................115 7.1.6 Option function select area ..........................................................................................................................116 7.1.7 Registers initialized by the E1 or E20 emulator...........................................................................................117 7.1.8 RAM initialization .........................................................................................................................................117 7.1.9 MCU reserved area .....................................................................................................................................117 7.1.10 DTC during a user program halt (not applicable for the R8C/LAxA) .........................................................117 7.1.11 Note on internal power low consumption...................................................................................................117 7.1.12 Note on debugging at less than 2.7V (not applicable for the R8C/LAxA) .................................................117 7.1.13 Debugging the functions to reduce power consumption ...........................................................................117 7.2 Reset .......................................................................................................................................................................... 118 7.3 Internal ROM area (flash memory)............................................................................................................................ 120 7.3.1 Changing the internal ROM area .................................................................................................................120 7.3.2 Notes on debugging in CPU rewrite mode ..................................................................................................120 7.3.3 Note on rewriting flash memory by the E1 or E20 emulator........................................................................121 7.3.4 Flash memory during the user program execution ......................................................................................121 7.3.5 MCUs used for debugging ...........................................................................................................................121 7.3.6 Flash memory ID code.................................................................................................................................122 7.4 Power supply.............................................................................................................................................................. 123 7.5 Operation during a user program halt ....................................................................................................................... 123 7.6 Memory access during user program execution....................................................................................................... 123 7.7 Final evaluation of the program................................................................................................................................. 123 7.8 Debug functions ......................................................................................................................................................... 124 7.8.1 Step execution .............................................................................................................................................124 7.8.2 Other debug functions .................................................................................................................................125 7.9 Notes on using the CAN module (applicable for the R8C/3xW and R8C/3xX only) ............................................... 126 7.9.1 Notes on CAN module in operation .............................................................................................................126 7.9.2 Operation during a user program halt..........................................................................................................126 Appendix A Menus....................................................................................................................................................127 Appendix B Notes on the High-performance Embedded Workshop ........................................................................132 R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 5 of 137 E1/E20 Emulator 1. Inside the E1/E20 Emulator User’s Manual 1. Inside the E1/E20 Emulator User’s Manual The E1/E20 manual consists of two documents: the E1/E20 Emulator User’s Manual and the E1/E20 Emulator Additional Document for User’s Manual (this document). Be sure to read both documents before using the E1/E20 emulator. In this user’s manual, the symbol # is used to show active LOW. (e.g. RESET#) (1) E1/E20 Emulator User’s Manual The E1/E20 Emulator User’s Manual describes the hardware specifications. - Components of the emulators - Emulator hardware specifications - Connecting the emulator to the host computer or user system (2) E1/E20 Emulator Additional Document for User’s Manual The E1/E20 Emulator Additional Document for User’s Manual describes functions of the emulator debugger, how to use the debugger, content dependent on the MCUs and precautionary notes. - Debugging functions supported by the R8C E1/E20 Emulator Debugger Individual functions of the emulator debugger Example of the emulator connection or interface circuit necessary for designing the hardware MCU resources used by the emulator Notes on using the emulator Setting the emulator debugger during startup Operating the emulator debugger Tutorial: From starting up the emulator debugger to debugging Note: • For the specifications and supported MCUs of the optional FDT, please check the Flash Development Tool Kit page of our website ( http://www.renesas.com/tools). • FDT stands for the Flash Development Toolkit. Trademarks Microsoft, MS-DOS, Visual SourceSafe, Windows and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. All other company or product names are the trademarks or registered trademarks of their respective owners. Terminology Firmware: Debug monitor: This means a control program stored in the E1 and E20 emulators. This analyzes the contents of communications with the emulator debugger and controls the emulator hardware. To upgrade the firmware, download the program from the emulator debugger. Written into the target MCU, this analyzes the contents of communications with the emulator debugger and controls the target MCU R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 6 of 137 E1/E20 Emulator 2. E1/E20 Emulator Specifications 2. E1/E20 Emulator Specifications 2.1 Target MCUs Table 2.1 shows the target MCUs covered in this user’s manual. Table 2.1 Target MCUs Item Description Target MCUs R8C Family R8C/3x Series R8C/3xC: R8C/32C, R8C/33C, R8C/34C, R8C/35C, R8C/36C, R8C/38C, R8C/3GC and R8C/3JC Groups R8C/3xM: R8C/32M, R8C/33M, R8C/34M, R8C/35M, R8C/36M, R8C/38M, R8C/3GM and R8C/3JM Groups R8C/3xT: R8C/33T, R8C/3JT and R8C/3NT Groups R8C/3xW: R8C/34W, R8C/36W and R8C/38W Groups R8C/3xX: R8C/34X, R8C/36X and R8C/38X Groups R8C/3xY: R8C/34Y, R8C/36Y and R8C/38Y Groups R8C/3xZ: R8C/34Z, R8C/36Z and R8C/38Z Groups R8C/3xGHPR: R8C/32G, R8C/32H, R8C/33G, R8C/33H, R8C/34P and R8C/34R Groups R8C/3xKU: R8C/34K, R8C/34U, R8C/3MK and R8C/3MU Groups R8C/3MQ Group R8C Family R8C/Lx Series R8C/LxC: R8C/L35C, R8C/L36C, R8C/L38C and R8C/L3AC Groups R8C/LxM: R8C/L35M, R8C/L36M, R8C/L38M and R8C/L3AM Groups R8C/LA6A and R8C/LA8A Groups R8C/LA3A and R8C/LA5A Groups R8C/LAPS Group Available operating modes Single-chip mode 2.2 Emulator specifications Table 2.2 shows the specifications of the emulator supported by the R8C E1/E20 Emulator Debugger. Table 2.3 and Table 2.4 show the Operating Environment of the R8C E1/E20 Emulator Debugger. Table 2.5 shows the MCU-related specifications of the R8C E1/E20 Emulator Debugger. Table 2.2 Emulator Specifications Item Description Emulators E1 (R0E000010KCE00) Emulator power supply Unnecessary (USB bus powered, power supplied from the host machine) Applicable emulator debugger R8C E1/E20 Emulator Debugger Operating Environment Temperatures E20 (R0E000200KCT00) Humidity Vibrations Ambient gases R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Active : 10°C to 35°C Inactive : –10°C to 50°C Active : 35% RH to 80% RH, no condensation Inactive : 35% RH to 80% RH, no condensation Active : maximum 2.45 m/s 2 2 Inactive : maximum 4.9 m/s Transportation : maximum 14.7 m/s 2 No corrosive gases Page 7 of 137 E1/E20 Emulator Table 2.3 2. E1/E20 Emulator Specifications R8C E1/E20 Emulator Debugger Operating Environment (Windows® XP) Item Description PC IBM PC/AT compatible. OS Windows® XP (32-bit editions)* The 64-bit editions of Windows® XP are not supported. CPU Pentium 4 running at 1.6 GHz or more recommended. Interface with host machine USB (USB 2.0, full speed/high speed)* * Also connectable to host computers that support USB 1.1 * Operation with all combinations of host machine, USB device and USB hub is not guaranteed for the USB interface. Memory 1 Gbyte plus 10 times the file size of the load module or larger recommended. Pointing device such as mouse Mouse or any other pointing device usable with the above OS that can be connected to the host machine. CD drive Needed to install the emulator debugger or refer to the user’s manual. Hard disk Emulator debugger installation needs 600 MB or more free space. (In view of swap area, keep another free space which is more than twice the memory capacity. (More than four times the memory capacity recommended.)) Display resolution 1024 × 768 or greater recommended. Table 2.4 R8C E1/E20 Emulator Debugger Operating Environment (Windows Vista® or Windows® 7) Item Description PC IBM PC/AT compatible. OS Windows® 7 (32-bit and 64-bit editions) Windows Vista® (32-bit editions) The 64-bit editions of Windows Vista® are not supported. CPU Pentium 4 running at 3 GHz or Core 2 Duo running at 1 GHz or more recommended. Interface with host machine USB (USB 2.0, full speed/high speed)* * Also connectable to host computers that support USB 1.1 * Operation with all combinations of host machine, USB device and USB hub is not guaranteed for the USB interface. Memory 2 Gbytes plus 10 times the file size of the load module or larger recommended (32-bit editions). Pointing device such as mouse Mouse or any other pointing device usable with the above OS that can be connected to the host machine. CD drive Needed to install the emulator debugger or refer to the user’s manual. Hard disk Emulator debugger installation needs 600 MB or more free space. (In view of swap area, keep another free space which is more than twice the memory capacity. (More than four times the memory capacity recommended.)) Display resolution 1024 × 768 or greater recommended. 3 Gbytes plus 10 times the file size of the load module or larger recommended (64-bit editions). R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 8 of 137 E1/E20 Emulator 2. E1/E20 Emulator Specifications Table 2.5 R8C E1/E20 Emulator Debugger Specifications (MCU-related) Item Description Power voltages 1.8 - 5.5 V [*1] For details, refer to the hardware manual of the MCU. Operating frequency range Interface with user system Maximum operating frequency : 20MHz Minimum operating frequency : 32.768KHz 14-pin connector* * When connecting to the E20 emulator, the included “38-pin to 14-pin conversion adapter” is required. Pins for communication with MCU MODE pin Communication method with MCU 1-line clock asynchronous serial interface MCU resources to be used - Internal ROM size: 2 KB (for some products, see ”7.1 MCU resources used by the emulator” on page 108.) - Stack 8 bytes - Address match interrupt - Vector area (BRK instruction, address match, single-step, address break) Power supply function Can supply 3.3 V or 5.0 V to the user system (maximum 200 mA) [*2] Notes: For rewriting the flash memory, set the power voltage within the programming and erasure voltage range specified *1 in the hardware manual of the MCU. For details, refer to “7.1.12 Note on debugging at less than 2.7V” on page 117. *2 The power supply function is available with the E1 emulator only. Do not use the power-supply function of the E1 emulator when it is being used to program flash memory as part of a mass-production process. Separately supply power from the user system in accord with the specifications of the MCU. Use FDT when you need to program flash memory during mass-production, etc. Voltage supplied from the E1 emulator depends on the quality of the USB power supply of the host computer, and as such, precision is not guaranteed. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 9 of 137 E1/E20 Emulator 2. E1/E20 Emulator Specifications 2.3 Applicable tool chain and third-party products You can debug a module created by the inhouse tool chain and third-party products listed in Table 2.6 below. Table 2.6 Applicable Tool Chain and Third-party Products Tool chain M3T-NC30WA V.5.20 Release 01 or later Third-party products TASKING M16C C/C++/EC++ Compiler V.2.3r1 or later [*1] IAR EWM16C V.2.12 or later Note: *1 Notes on debugging the load modules created in ELF/DWARF2 format If the load module was created in ELF/DWARF2 format using TASKING M16C C/C++/EC++ compiler V3.0r1, the precautionary note described below must be observed when displaying member variables of the base class in the [Watch] window. Precautionary Note: If any class object with a base class is defined, the following problems may occur: Case 1: Member variables of the base class cannot be referenced directly from the class object (*1). =>Use indirect references from the class object to refer to member variables of the base class (*2) (*3). Case 2: If the PC value resides in any member function of a derived class, member variables of the base class cannot be referenced directly (*4). => Use indirect references from “this” pointer to refer to member variables of the base class (*5) (*6). Figure 2.1 shows a code example, and Figure 2.2 shows a [Watch] window registration example. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 10 of 137 E1/E20 Emulator 2. E1/E20 Emulator Specifications ///////////////////////////////////////////////////////// *.h class BaseClass { public: int m_iBase; public: BaseClass() { m_iBase = 0; } void BaseFunc(void); }; class DerivedClass : public BaseClass { public: int m_iDerive; public: DerivedClass() { m_iDerive = 0; } void DerivedFunc(void); }; *.cpp main() { class DerivedClass ClassObj; ClassObj.DerivedFunc(); return; } void BaseClass::BaseFunc(void) { m_iBase = 0x1234; } void DerivedClass::DerivedFunc(void) { BaseFunc(); m_iDerive = 0x1234; } ///////////////////////////////////////////////////////// Figure 2.1 Example Code ///////////////////////////////////////////////////////// Case 1: If the PC value resides in the main() function (1)"ClassObj.m_iBase" : Cannot be referenced (*1) (2)"ClassObj.__b_BaseClass.m_iBase" : Can be referenced (*2) (3)"ClassObj" -"__b_BaseClass" -"m_iBase" : Can be referenced (*3) -"m_iDerive" -: Expansion symbol Case 2: If the PC value resides in the DerivedClass::DerivedFunc() function (1)"m_iBase" : Cannot be referenced (*4) (2)"this->__b_BaseClass.m_iBase" : Can be referenced (*5) (3)"__b_BaseClass.m_iBase" : Can be referenced (*5) (4)"this" -"*" -"__b_BaseClass" -"m_iBase" : Can be referenced (*6) -"m_iDerive" (5)"__b_BaseClass" -"m_iBase" : Can be referenced (*6) ///////////////////////////////////////////////////////// Figure 2.2 [Watch] Window Registration Example R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 11 of 137 E1/E20 Emulator 3. Designing the User System 3. Designing the User System 3.1 Connector for connecting the E1 or E20 emulator and the user system Before connecting the E1 or E20 emulator to the user system, a connector must be installed in the user system so a user system interface cable can be connected. Table 3.1 shows the recommended connector for the E1 and E20 emulators. Figure 3.1 shows the connection of the user system interface cable to the user system when the 14-pin connector is in use with the E1 emulator. Figure 3.2 shows the connection of the user system interface cable to the user system when the 38pin to 14-pin conversion adapter is in use with the E20. The same connection is also required when using the E1 or E20 emulator as a programmer in the FDT. When designing the user system, refer to Figure 3.3 “Pin Assignments of the 14-pin Connector for the E1 and E20” on page 14 and “3.4 Recommended connection example between the E1/E20 connecting connector and the MCU” on page 17. Before designing the user system, be sure to read the E1/E20 Emulator User’s Manual and related device hardware manuals. Table 3.1 Recommended Connector 14-pin connector Type Number 2514-6002 7614-6002 Manufacturer 3M Limited 3M Limited Specification 14-pin straight type (for use outside Japan) 14-pin straight type (for use in Japan) User system interface cable Connector User system Pin 2 Pin 1 Figure 3.1 Connecting the User-System Interface Cable when the 14-Pin Connector is in Use Notes: Do not mount components with a height exceeding 10 mm within 5 mm around the 14-pin connector on the user • system. • Connect 14-pin connector pins 2, 12 and 14 firmly to the GND on the user system board. These pins are used as an electric GND and monitor the connection of the user system connector. • When inserting or removing the user system interface cable from the connector section of the user system, be sure to hold the connector cover at the head of the cable. Removal by pulling the cable portion instead of grasping the cover causes breakage of the cable connection. • The trace function for the MCU used is accomplished by using the MCU’s internal facilities only. Therefore, the external trace output function is not supported, so be sure to use the 38-pin to14-pin conversion adapter supplied with the E20 emulator to connect to the 14-pin connector on the user system. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 12 of 137 E1/E20 Emulator 3. Designing the User System 38-pin user system interface cable 9.4 mm 38-pin to 14-pin conversion adapter 14-pin type connector 7614-6002 or 2514-6002 10 mm 9.4 mm 26.2 mm External the 38-pin to 14-pin Externaldimensions dimentions ofofthe 38-pin to 14-pin conversionadapter adapter (top conversion (topview) view) User system Figure 3.2 Connecting the User System Interface Cable when the 38-pin to 14-pin Conversion Adapter is in Use with the E20 Notes: Do not mount components with a height exceeding 10 mm within 5 mm around the 14-pin connector on the user • system. • Connect 14-pin connector pins 2, 12 and 14 firmly to the GND on the user system board. These pins are used as an electric GND and monitor the connection of the user system connector. • When inserting or removing the user system interface cable from the connector section of the user system, be sure to hold the connector cover at the head of the cable. Removal by pulling the cable portion instead of grasping the cover causes breakage of the cable connection. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 13 of 137 E1/E20 Emulator 3. Designing the User System Pin 1 mark Connector Pin2 Pin 14 Pin1 Pin 13 Pin NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Pin 1 mark 25.0 [mm] 23.0 [mm] 6×2.54 = 15.24 [mm] MCU Signals N.C. Vss N.C. Vss N.C. Vss MODE Vcc N.C. Vss N.C. Vss RESET# Vss 2.54 [mm] Pin 2 Pin 1 Pin 14 Pin 13 0.45 [mm] Pin 1 mark Figure 3.3 Pin Assignments of the 14-pin Connector for the E1 and E20 Connector Type Number 2514-6002 3M Limited (for use outside Japan) 7614-6002 3M Limited (for use in Japan) 5mm 2 4 6 8 10 12 14 1 3 5 7 9 11 13 5mm 5mm 5mm Area with limit on mounted components (heights must be no greater than 10mm) Figure 3.4 Upper Limit Applied to the Heights of Components Mounted around the 14-pin Connector Notes: • Pin 14 is used for checking the connection between the E1 or E20 emulator and the user system, and is not directly connected to the Vss inside the emulator. Make sure pins 2, 4, 6, 10, 12, and 14 are all connected to the Vss. • Note the pin assignments for the user system connector. • Do not connect anything to the N.C. pin. • An upper limit applies to the heights of components mounted around the connector on the user system. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 14 of 137 E1/E20 Emulator 3. Designing the User System 3.2 Small connector conversion adapter When you use the small connector conversion adapter for the E1 emulator (R0E000010CKZ11) that is separately available from Renesas, be aware that the connector pin assignments differ from those of the E1 emulator’s standard interface connector. The 14-pin connector pin assignments when the small connector conversion adapter for the E1 emulator is used are shown in Table 3.2. Figure 3.5 Usage of the R0E000010CKZ11 Table 3.2 Connector Pin Assignments when Small Connector Conversion Adapter for the E1 Emulator is Used Pin NO MCU Signals 1 Vss 2 MODE 3 Vcc 4 N.C 5 RESET# 6 Vss 7 Vss 8 N.C 9 N.C 10 N.C 11 Vss 12 Vss 13 N.C 14 Vss Notes: • Pin 14 is used for checking the connection between the E1 or E20 emulator and the user system, and is not directly connected to the Vss inside the emulator. Make sure pins 1, 6, 7, 11, 12, and 14 are all connected to the Vss. • Note the pin assignments for the user system connector. • Do not connect anything to the N.C. pin. • An upper limit applies to the heights of components mounted around the connector on the user system. • For the specifications of the small connector conversion adapter for the E1 emulator, refer to the R0E000010CKZ11 user’s manual. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 15 of 137 E1/E20 Emulator 3. Designing the User System 3.3 Connecting system ground The emulator's signal ground is connected to the user system's signal ground. In the emulator, the signal ground and frame ground are connected. In the user system, connect the frame ground only; do not connect the signal ground to the frame ground (See Figure 3.6). If it is difficult to separate the frame ground from the signal ground in the user system, set the GND for DC power input (AC adapter) of the host computer and the frame ground of the user system as the same potential. If the GND potential is different between the host computer and the user system, an overcurrent will flow in the low-impedance GND line and thin lines might be burned. Signal ground E1/E20 emulator Signal Signal Logic Logic Host computer User system USB Signal ground Signal ground Power supply Frame ground Figure 3.6 Connecting System Ground WARNING Make sure the system ground is separated between the frame ground and signal ground on the user system. Do not connect the emulator to the user system while its frame ground and signal ground are connected. Such an act could cause smoke, fire, or an electric shock due to the difference in ground potential. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 16 of 137 E1/E20 Emulator 3. Designing the User System 3.4 Recommended connection example between the E1/E20 connecting connector and the MCU Figure 3.7 shows a recommended example of connection between the E1/E20 connecting connector and the MCU. The same connection is also required when using the E1 or E20 emulator as a programmer in the FDT. Vcc Vcc Pulled up at 4.7kΩ ± 10% Vcc MODE MODE Vcc User logic MCU MCU *1 RESET# RESET# Vss Pulled up at 4.7kΩ or more 14-pin connector for the E1 and E20 *1 Open-collector buffer User system Figure 3.7 Example of an E1/E20 Emulator Connection Notes: • When adjacent resistors are used for pull-up, they may be affected by noise from other pins. In particular, separate the resistor for MODE from the other resistors. • Wiring patterns between the connector and the MCU must be as short as possible (within 50 mm is recommended). Do not connect the signal lines between the connector and MCU to other signal lines. • For the handling of pins while the E1 or E20 emulator is not in use, refer to the hardware manual for the MCU. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 17 of 137 E1/E20 Emulator 3. Designing the User System (1) MODE pin The E1 and E20 emulators use the MODE pin for MCU control and forced break control. Do not connect a capacitor etc. to this pin. Pulled up at 4.7kΩ ± 10% Figure 3.8 Connection of the Emulator and the MODE Pin (2) RESET# pin The RESET# pin is used by the emulator for outputting “L” and monitoring pin states. Therefore, use an opencollector output buffer or a CR reset circuit as the reset circuit for the user system. The recommended pull-up value is 4.7 kΩ or more. The MCU can be reset by outputting “L” from the emulator. However, if the reset IC output is “H”, the user system reset circuit cannot be set to “L”. As such, the emulator will not operate normally. Pulled up at 4.7kΩ or more Figure 3.9 Connection of the Emulator and the #RESET Pin (3) Other pins - Connect Vss and Vcc to the Vss and Vcc of the MCU, respectively. - The amount of voltage input to Vcc must be within the specified range of the MCU. - Pin 14 is used for checking the connection between the E1 or E20 emulator and the user system, and pins 4, 6 and 10 are connected to the internal circuit. These pins are not directly connected to the Vss inside the emulator. - Make sure pins 2, 4, 6, 10, 12 and 14 are all connected to the Vss. - Do not connect anything to the N.C. pin. WARNING When supplying power, ensure that there are no short circuits between Vcc and GND. Only connect the E1 or E20 emulator after confirming that there are no mismatches in pin assignments of the E1/E20 connecting connector. Incorrect connection will result in the host computer, the emulator, and the user system emitting smoke or catching fire. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 18 of 137 E1/E20 Emulator 3. Designing the User System 3.5 Interface circuit in the E1 or E20 emulator Figure 3.10 shows the interface circuit in the E1 emulator, and Figure 3.11 shows the interface circuit in the E20 emulator. Use these figures as a reference when determining the pull-up resistance value. Figure 3.10 Interface Circuit inside the E1 Emulator (For Reference) Figure 3.11 Interface Circuit inside the E20 Emulator (For Reference) R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 19 of 137 E1/E20 Emulator 4. Preparations for Debugging 4. Preparations for Debugging 4.1 Activating High-performance Embedded Workshop To activate the High-performance Embedded Workshop, follow the procedure listed below. (1) Connect the emulator to the host computer and the user system. (2) Select [Renesas -> High-performance Embedded Workshop -> High-performance Embedded Workshop] from [Programs] in the [Start] menu. The [Welcome!] dialog box is displayed. Figure 4.1 [Welcome!] Dialog Box (3) Select a startup method from the following. - [Create a new project workspace] radio button: Creates a new workspace. - [Open a recent project workspace] radio button: Uses an existing workspace and displays the history of the opened workspace. - [Browse to another project workspace] radio button: Uses an existing workspace. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 20 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.2 Creating a new workspace (with a toolchain not in use) The procedures for creating a new project workspace differ according to whether or not a toolchain is in use. This product does not include a toolchain. You can only use a toolchain in an environment where a C/C++ compiler package has been installed. Follow the steps below to create a new workspace. (1) In the [Welcome!] dialog box that is displayed when the High-performance Embedded Workshop is activated, select [Create a new project workspace] radio button and click the [OK] button. Figure 4.2 Create a new project workspace (2) The Project Generator is started. Figure 4.3 [New Project Workspace] Dialog Box [Workspace Name]: Enter a new workspace name. [Project Name]: Enter a project name. You do not need to enter any name if you wish this to be the same as the workspace name. [Directory]: Enter the directory in which you want the workspace to be created. Alternatively, click on the [Browse] button and select a workspace directory from the dialog box. [CPU family]: Select the CPU family of the MCU you are using. Other list boxes are used for setting the toolchain; the fixed information is displayed when the toolchain has not been installed. Click on the [OK] button. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 21 of 137 E1/E20 Emulator 4. Preparations for Debugging (3) Select the target for debugging. Select the target platform you wish to use by placing a check mark in its checkbox and click on the [Next] button. Figure 4.4 [Setting the Target System for Debugging] Dialog Box (4) Set the configuration file name. Configuration refers to a file in which information on the state of the High-performance Embedded Workshop for use with target software rather than emulators is saved. If you have selected two or more target platforms, click the [Next] button and then set a configuration name for each of the selected target platforms. When you have finished setting the configuration names, settings related to the emulator debugger have been completed. (5) Click the [Finish] button, and the [Summary] dialog box will be displayed. Clicking the [OK] button in this dialog box starts the High-performance Embedded Workshop. (6) After starting the High-performance Embedded Workshop, connect the emulator. Figure 4.5 [Setting the Debugger Options] Dialog Box R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 22 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.3 Creating a new workspace (with a toolchain in use) Follow the procedure below to create a new workspace. (1) In the [Welcome!] dialog box, select the [Create a new project workspace] radio button and click the [OK] button. Figure 4.6 [Welcome!] Dialog Box (2) The Project Generator is started. [Workspace Name]: [Project Name]: [Directory]: [CPU family]: [Tool chain]: Enter a new workspace name. Enter a project name. You do not need to enter any name if you wish this to be the same as the workspace name. Enter the directory in which you want the workspace to be created. Alternatively, click the [Browse] button and select a workspace directory from the dialog box. Select the CPU family of the MCU you are using. To use a toolchain, select the appropriate toolchain here. If you do not use any toolchain, select [None]. After making these settings, click the [OK] button. Figure 4.7 [New Project Workspace] Dialog Box R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 23 of 137 E1/E20 Emulator 4. Preparations for Debugging (3) Set the CPU and options for the toolchain and make other necessary settings. (4) Select the target for debugging. Select the target platform you wish to use by placing a check mark in its checkbox and click the [Next] button. Figure 4.8 [Setting the Target System for Debugging] Dialog Box (5) Set the configuration file name. If you have selected two or more target platforms, click the [Next] button and then set a configuration name for each of the selected target platforms. When you have finished setting the configuration names, settings related to the emulator debugger have been completed. (6) Click the [Finish] button, and the [Summary] dialog box will be displayed. Clicking the [OK] button in this dialog box starts the High-performance Embedded Workshop. (7) After starting the High-performance Embedded Workshop, connect the emulator. Figure 4.9 [Setting the Debugger Options] Dialog Box R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 24 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.4 Opening an existing workspace Follow the procedure below to open an existing workspace. (1) In the [Welcome!] dialog box, select the [Browse to another project workspace] radio button and click the [OK] button. Figure 4.10 [Welcome!] Dialog Box (2) The [Open Workspace] dialog box is displayed. Specify the directory in which the workspaces was created, select the workspace file (extension “.hws”), and click the Select button. Figure 4.11 [Open Workspace] Dialog Box (3) The High-performance Embedded Workshop will start, and its state will be restored to the state at the time the selected workspace was saved. If the emulator was connected at the time, the workspace is automatically connected to the emulator. If the emulator was not connected but you want to connect it, refer to “4.5 Connecting the emulator” on page 26. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 25 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.5 Connecting the emulator 4.5.1 Connecting the emulator The following methods for connecting the emulator are available. a) Making the emulator settings in booting-up before connection Choose [Debug Settings…] from the [Debug] menu to open the [Debug Settings] dialog box. In this dialog box, you can select the target for debugging, and register modules for downloading and a command chain for automatic execution. When you select the target in the [Debug Settings] dialog box and then click the [OK] button, the emulator will be connected. b) Loading a session file Connect the emulator by simply switching the session file to one in which the setting for the emulator use has been registered. 4.5.2 Reconnecting the emulator While the emulator is disconnected, you can reconnect it in one of the ways described below. a) Choose [Connect] from the [Debug] menu. b) c) Click the [Connect] toolbar button ( ). Enter the connect command in the [Command Line] window. 4.6 Disconnecting the emulator 4.6.1 Disconnecting the emulator To disconnect the emulator while it is active, do so in one of the ways described below. a) Choose [Disconnect] from the [Debug] menu. b) c) Click the [Disconnect] toolbar button ( ). Enter the disconnect command in the [Command Line] window. 4.7 Quitting the High-performance Embedded Workshop Choosing [Exit] from the [File] menu closes the High-performance Embedded Workshop. Before it closes, a message box will be displayed asking you whether you want to save the session. To save the session, click the [Yes] button. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 26 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.8 Making debugging-related settings Register download modules, set up automatic execution of command line batch files, and set download options, etc. 4.8.1 Specifying a module for downloading Choose [Debug Settings…] from the [Debug] menu to open the [Debug Settings] dialog box. In the [Target] drop-down list box, select the name of the product you want to connect. In the [Debug format] drop-down list box, select the format of the load module you want to download. Then register a module in the selected format in the [Download modules] list box. Figure 4.12 [Debug Settings] Dialog Box Note: [*1] At this point in time, no programs have been downloaded yet. For details on how to download a program, refer to Section “5.2 Downloading a program” on page 48. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 27 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.8.2 Setting up automatic execution of command line batch files Click on the [Options] tab of the dialog box. Here, register a command chain to be automatically executed with the specified timing. Select your desired timing from among the following four choices: y When the emulator is connected ([At target connection]) y Immediately before downloading ([Before download of modules]) y Immediately after downloading ([After download of modules]) y Immediately after a reset ([After reset]) In the [Command batch file load timing] drop-down list box, select the timing with which you want a command chain to be executed. Then add the command-batch files you wish to execute to the [Command Line Batch Processing] list box. Figure 4.13 [Debug Settings] Dialog Box R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 28 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.9 Procedure for launching the E1/E20 emulator debugger This section covers how to start up the High-performance Embedded Workshop and check the connection of the emulator and the MCU on the user system. Here, use the workspace included as a tutorial for the product. (1) Take the following steps beforehand. - Check that the power for the user system is off. - Connect one end of the user-system interface cable to the user-side connector on the emulator and the other end to the connector on the user system. - Connect the emulator and host computer via the USB interface cable. (with the 14-pin connector) Figure 4.14 Configuration for System Check (2) Open the start menu and select [Programs -> Renesas -> High-performance Embedded Workshop -> High-performance Embedded Workshop]. Figure 4.15 [Start] Menu R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 29 of 137 E1/E20 Emulator 4. Preparations for Debugging (3) The [Welcome!] dialog box is displayed. To use a workspace for the tutorial, select the [Browse to another project workspace] radio button and click the [OK] button. When the [Open Workspace] dialog box is opened, specify the following directory: : \WorkSpace\Tutorial\E1E20\R8C\Tutorial After the directory has been specified, select the file “Tutorial.hws” and click the [Open] button. Figure 4.16 [Welcome!] Dialog Box Figure 4.17 [Open Workspace] Dialog Box R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 30 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.10 Setting the emulator debugger during startup When the emulator starts, the following three dialog boxes are displayed. (1) [Initial Settings] dialog box Use this dialog box to select the target MCU and establish communication. This dialog box can be redisplayed by selecting [Emulator] -> [Device Setting…] from the Setup menu after starting the emulator. In this case, however, be aware that changes of the settings after starting the emulator are not reflected immediately and will be set as the initial value when reconnecting the emulator. (2) [Configuration Properties] dialog box This dialog box is displayed after the [Initial Settings] dialog box. Use this dialog box to make settings related to the emulator and debug functions. This dialog box can be re-opened by selecting [Emulator] -> [System] from the Setup menu after the emulator has been booted up. Some options in this dialog box can have their settings changed after startup. The changeable options are displayed as in active use, while the unchangeable options are inactive (grayed out), with their set contents only displayed. (3) [Connecting…] dialog box This dialog box shows the progress of boot-up processing. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 31 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.11 [Initial Settings] dialog box The [Initial Settings] dialog box is provided for setting items that need to be set when the debugger is launched. The contents set from this dialog box (excluding [Power supply] group box items) also become valid the next time the debugger is launched. When launching the debugger for the first time after creating a new project work space, the [Initial Settings] dialog box is displayed with the Wizard. The settings you have made here cannot be changed after the emulator is booted up. To change the settings, you need to cancel the process of booting-up and then reboot the emulator. Figure 4.18 [Initial Settings] Dialog Box If you check [Do not show this dialog box again.] at the bottom of the [Initial Settings] dialog box, the [Initial Settings] dialog box will not be displayed the next time the debugger is launched. When [Do not show this dialog box again.] is checked, the E1 emulator does not supply power to the user system. You can open the [Initial Settings] dialog box using one of the following methods: y After the debugger is launched, select Menu -> [Setup] -> [Emulator] -> [Device Setting…]. y Hold down the Ctrl key while launching the debugger. Note: Unsupported options are grayed out depending on the selected types of the MCU. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 32 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.11.1 [Device] tab Device selection, operation mode specification and power supply setting are made from the [Device] tab of the [Initial Settings] dialog box. [MCU group] Select the name of the MCU group to be used from the [MCU group] drop-down list. [Device] Select the type of MCU to be used from the [Device] drop-down list. (See “7.1 MCU resources used by the emulator” on page 108 for the list of applicable MCUs.) [Mode] Select the mode to be used. For details, see “4.11.1 (1) Selecting the Mode ” on page 34. [Power supply] Select the power supply to the user system. - When supplying power to the user system from the E1, select the [Power Target from Emulator. (MAX 200mA)] checkbox. - Select either [3.3V] or [5.0V] by checking the checkbox. [*1] Communication You can select another target emulator for connection via USB. The [Emulator Serial No.] list box shows unique identifying information on the emulator connected via USB. Clicking on the [Refresh] button updates the information. [*2] Figure 4.19 [Initial Settings] Dialog Box ([Device] Tab) Notes: [*1] This option cannot be selected with the E20 emulator because it does not support the power-supply function. Only one power supply option is available depending on the selected types of the MCU. For the information of the operating supply voltage of the MCU, refer to the hardware manual of the MCU used. [*2] If the emulator serial No. is not displayed, it means that the host machine does not recognize the emulator (in which case the item in the Power supply section cannot be selected). If the serial No. is not displayed even by clicking the [Refresh] button, it is possible that the emulator is not connected to the host machine or the USB driver is not installed. So check again to see that the emulator is connected correctly and that the USB driver is installed. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 33 of 137 E1/E20 Emulator 4. Preparations for Debugging (1) Selecting the Mode Table 4.1 Selecting the Mode Mode Description This is a mode for debugging. When starting the debugger, the E1 or E20 emulator writes the E1/E20 emulator program and the Debugging mode [*1] vector area used by the E1 or E20 emulator. The emulator rewrites the OFS, OFS2 and ID code areas. This is a mode to write only the user program (E1/E20 emulator program is not written). Therefore, only the following operations can be executed in this mode. - Downloading the user program - Connecting or disconnecting the MCU Writing the on-chip flash memory Performing operations other than the above will result in errors. mode [*2] When [Execute the user program after ending the debugger.] is selected, with the E1 or E20 emulator connected to the user system, the user program is executed at the same time the debugger is terminated. This checkbox setting is available only when the [writing the on-chip flash memory mode] is selected. If this checkbox is not selected, the emulator debugger ends after resetting the MCU. Notes: [*1] In this mode, vector addresses are used by the E1/E20 emulator program. After a program has been downloaded, you cannot disconnect the emulator and operate the user system as a stand-alone unit. (Programs written in this mode cannot be executed from the CPU.) If you want to execute a program from the CPU, use [writing the on-chip flash memory mode]. Note that, after downloading the user program, the lock bits of the downloaded blocks will be the one set by the user program. Writing of ID codes (intended to prohibit reading of the internal ROM) to the internal ROM of the MCU is not possible in this mode. [*2] The user program cannot be debugged in this mode. Note that, after downloading the user program, the lock bits of the downloaded blocks will be unlocked. The ID code settings made on the user program will be written to the internal ROM of the MCU. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 34 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.11.2 [Communication] tab Select communication baud rate between the E1 or E20 emulator and the MCU in the [Communication] tab. 500000 bps (default setting) should be selected during normal use. [*1] Figure 4.20 [Initial Settings] Dialog Box ([Communication] Tab) Notes: [*1] Depending on the wired length of the MODE signal and how it is wired on the user system, communication at the selected baud rate may not be performed. Reducing this baud rate may help to solve the problem. Also, the communication information you set here cannot be changed after the emulator debugger has started. To change the communication baud rate, you need to disconnect the emulator and the MCU temporarily and then reconnect. [*2] The baud rate of 57600 bps or below is designated for checking purpose in case there is a failure in the connection with the emulator. With such a low baud rate, it takes a long time to write into the flash memory of the target MCU, and the emulator debugger may appear to be giving no response. Also note if the data of 1024 bytes or larger is handled when displaying the memory contents or in memory fill function, a time-out error may occur because the communication takes up much time. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 35 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.12 Showing the connection dialogs When you click the [OK] button in the [Initial Settings] dialog box, the [Connecting…] dialog box is displayed to start initial communication with the MCU. Then the [Configuration Properties] dialog box shown in Section 4.13 appears except in the following five cases. Table 4.2 Display Contents of the [Connecting…] Dialog Box No. 1 2 3 4 5 Contents When the E1/E20 emulator is used in other emulator debuggers such as RX Family When the E1/E20 emulator firmware version is old When the [Power supply] setting in the [Initial Settings] dialog box is incorrect [*1] When an ID code other than “FFFFFFFFFFFFFFh” is written in the ID code area When the emulator cannot communicate with the MCU Displayed window See 4.12.1 See 4.12.2 See 4.12.3 See 4.12.4 See 4.12.5 You can confirm the progress of boot-up processing by checking the [Connecting…] dialog box. The [Connecting…] dialog box continues displaying progress information from when boot-up processing starts till when it ends. While the [Device setting…] and the [Configuration Properties] dialog boxes are displayed, you cannot manipulate this dialog box. The contents shown here are recorded in a trouble report. To check the content of a trouble report, select [Technical Support -> Create Bug Report] from the Help menu. Figure 4.21 [Connecting…] Dialog Box Note: [*1] Applies to the E1 emulator only. The E20 emulator does not support the power-supply function. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 36 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.12.1 When the E1/E20 emulator is used in other emulator debuggers such as RX Family When updating of the emulator firmware is required, the [Confirm Firmware] dialog box appears. (1) Confirming whether or not to update the emulator firmware Clicking the [OK] button starts updating of the emulator firmware. Once started, you cannot cancel the updating. Figure 4.22 [Update Firmware] Dialog Box (2) Updating the emulator firmware The [Downloading] progress bar is displayed during the process of updating. Booting-up of the emulator resumes after the firmware has been updated. [*1] Figure 4.23 [Downloading] Progress Bar Note: [*1] The USB interface cable must not be disconnected until writing is complete. Early disconnection may damage the E1 or E20 emulator. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 37 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.12.2 When the E1/E20 emulator firmware version is old When updating of the emulator firmware is required, the [Confirm Firmware] dialog box appears. (1) Confirming whether or not to update the emulator firmware Clicking the [OK] button starts updating of the emulator firmware. Once started, you cannot cancel the updating. X.XX.XX.XXX Y.YY.YY.YYY Figure 4.24 [Confirm Firmware] Dialog Box (2) Updating the emulator firmware The [Downloading] progress bar is displayed during the process of updating. Booting-up of the emulator resumes after the firmware has been updated. [*1] Figure 4.25 [Downloading] Progress Bar Note: [*1] The USB interface cable must not be disconnected until writing is complete. Early disconnection may damage the E1 or E20 emulator. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 38 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.12.3 When the [Power supply] setting in the [Initial Settings] dialog box is incorrect When the power-supply setting in the [Initial Settings] dialog box and the power supply state of the user system do not match, the following windows are displayed. These windows are displayed only with the E1 emulator. The E20 emulator does not support the power-supply function. y y When [Power target from the emulator.] is checked and the power is already supplied to the user system When [Power target from the emulator.] is not checked and the power is already supplied to the user system (1) When [Power target from the emulator.] is checked and the power is already supplied to the user system If you have selected the [Power target from the emulator.] checkbox and an external power supply is supplying power to the user system, the dialog box appears as shown in Figure 4.26. Figure 4.26 External Power for the User System Dialog Box Clicking the [OK] button opens the [Power Supply] dialog box. Deselect the checkbox and click the [OK] button to stop the emulator supplying power to the user system. Figure 4.27 [Power Supply] Dialog Box (2) When [Power target from the emulator] is not checked and the power is already supplied to the user system If you have not selected the [Power target from the emulator.] checkbox and an external power supply is supplying power to the user system, the dialog box below appears. Figure 4.28 Lack of Power Supply Dialog Box Clicking the [OK] button opens the [Power Supply] dialog box. Select the checkbox and then specify the power supply voltage. Click the [OK] button, and the emulator will start supplying power to the user system. Figure 4.29 [Power Supply] Dialog Box R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 39 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.12.4 When an ID code other than “FFFFFFFFFFFFFFh” is written in the ID code area (1) If an ID code other than “FFFFFFFFFFFFFFh” has been set in the target MCU’s ID code area, the following window appears to verify the ID code. (2) Enter the ID code and click the [OK] button. Figure 4.30 [ID Code verification] Dialog Box Note: [*1] For details on ID codes, refer to the following: (1) Hardware manual for the MCU (2) “7.3.6 Flash memory ID code” on page 122 R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 40 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.12.5 When the emulator cannot communicate with the MCU Click the OK button in the [Initial Settings] dialog box to start initial communication with the MCU. The contents and the causes of errors if encountered during communication with the MCU at this time are listed in Table 4.3. Table 4.3 Error Messages at the Start of Communication with the MCU and Cause of Errors Error message Command processing cannot be executed because the MODE pin on the user system is fixed in the low state. Check the state of the MODE pin. Command processing cannot be executed because the reset pin on the user system is in the low state. Check the state of the reset pin. The target MCU and the selected device do not match. Check the device name specified at debugger startup again. Could not activate the target MCU. There may be a problem in the pin processing of the MCU etc. The power voltage has exceeded 5.9V. Please check the user system setting. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Cause Since the MODE pin is stuck low, the E1 or E20 emulator cannot communicate with the MCU. Solution Pull up the MODE pin. (See Figure 3.8.) Since the RESET pin is stuck low, the E1 or E20 emulator cannot communicate with the MCU. Check the RESET pin circuit. (See Figure 3.9.) The MCU type name selected in the [Initial Settings] dialog does not agree with the MCU actually connected to the E1 or E20 emulator. The E1 or E20 emulator and the MCU are connected incorrectly. Or the connection does not conform to the recommended circuit. If the connection differs from the one shown in the recommended circuit, communication may not be performed normally. The MCU’s operating voltage does not conform to the designated voltage. Change the MCU type name selected in the [Initial Settings] dialog box to make it agree with the MCU actually connected to the E1 or E20 emulator. Check again the connection between the E1 or E20 emulator and the MCU. (See Figure 3.7.) The MCU is mounted in place using an IC socket but is imperfectly contacted. Check again to see if the IC socket on the user system matches the package of the MCU used, and whether it is insufficiently screwed up and imperfectly contacted. See “3.4 (3) Other pins” on page 18. Check the user-system settings for the power supply voltage. Not all power supply pins of the E1 or E20 emulator are connected. The voltage being supplied to the user system may be greater than the defined limit. Refer to the hardware manual of the MCU. Page 41 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.13 [Configuration Properties] dialog box The [Configuration Properties] dialog box is used to make settings related to the emulator and debugging functions. This dialog box appears after the [Initial Settings] dialog box. The settings remain valid the next time the emulator is booted up. Clicking the [OK] button on the tabs completes emulator debugger setting and the debugger is booted up. The [Configuration Properties] dialog box can be displayed again after the debugger is launched. Select Menu -> [Setup] -> [Emulator] -> [System...] to open the dialog box. Note: Unsupported options are grayed out or not displayed depending on the selected types of the MCU. 4.13.1 [System] tab [Debug monitor location] Select the area in which the debug monitor is located. Specify the address that will not be used by the user system. - [Debug monitor location] Specify the area in which the debug monitor is located either from [Data flash area] or [User flash area]. Specify 2k bytes that will not be used by the user system. [*1] [*2] [*5] [Debug function] Select the debug function. - [Debugging the program re-writing the internal flash.] Select this checkbox when debugging in CPU rewrite mode (i. e., debugging a program that involves overwriting of the internal flash memory (program ROM area) of the MCU). [*3] [*4] Figure 4.31 [Configuration Properties] Dialog Box ([System] Tab) [*5] Notes: [*1] Depending on the type of MCU, the available options may vary as described below. - The [Data flash area] option cannot be selected. - The options in the [Debug monitor location] group box may be displayed in gray because this setting is unnecessary. [*2] When you have selected the [Data flash area] for the debug monitor location, use a 250000 bps or lower communication baud rate. [*3] Memory accesses attempted while the user program is halted are always made to the internal cache of the E1 or E20 emulator. Actual access to the flash memory is executed before the user program restarts and immediately after it has stopped. The content of the cache is updated immediately after the user program has stopped when this option is selected, but not updated when this option is unselected. In this case, the displayed information and the content of the MCU’s internal ROM do not match. Therefore, be sure to check the checkbox for this option when you want to rewrite the internal flash memory during user program execution by using the “CPU rewrite mode”. [*4] S/W break cannot be used when [Debugging the program re-writing the internal flash.] is selected. Also, do not rewrite the internal ROM area in the [Memory] window, etc. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 42 of 137 E1/E20 Emulator 4.13.2 4. Preparations for Debugging [MCU] tab [Mode] Select operating mode of the MCU. This setting is not necessary for your MCU. Figure 4.32 [Configuration Properties] Dialog Box （[MCU] Tab） R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 43 of 137 E1/E20 Emulator 4. Preparations for Debugging 4.13.3 [Internal flash memory overwrite] tab The [Internal flash memory overwrite] tab allows you to specify whether or not individual blocks of flash memory should be overwritten. Settings made can be altered in the [Configuration Properties] dialog box even after the emulator debugger has been booted up. All blocks of flash memory are automatically shown in the list according to selected device. Settings made in this tab will be applied also in [writing the on-chip flash memory mode]. (1) Blocks whose checkboxes checked 1. Data are loaded for the selected blocks temporarily. 2. All blocks are erased. 3. When the user program is downloaded by a download command, etc., the data in 1. are merged (with the data in the device left intact). (2) Blocks whose checkboxes unchecked 1. All blocks are erased. 2. The user program is downloaded by a download command, etc. Areas that have no data for the program to be downloaded remain set to the initial values of the flash memory. Figure 4.33 [Configuration Properties] Dialog Box ([Internal flash memory overwrite] Tab) R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 44 of 137 E1/E20 Emulator 4. Preparations for Debugging If 0C000–0DFFFh comprises one block, the internal ROM data after a download differs depending on whether the checkbox for it is checked, as follows: Example 1) For a case where the downloaded data is less than the range written as of the time the emulator debugger has started Example 2) When the checkbox is checked For a case where there are no downloaded data for the block concerned When the checkbox is checked 0C000h 0C000h 0C000h 0C000h 0C0FFh 0C0FFh 0C0FFh 0C0FFh 0C3FFh 0C3FFh 0C3FFh 0C3FFh 0DFFFh 0DFFFh 0DFFFh 0DFFFh When the checkbox is unchecked When the checkbox is unchecked 0C000h 0C000h 0C0FFh 0C0FFh 0C3FFh 0C3FFh 0DFFFh 0DFFFh : The data written in the internal ROM before the emulator debugger started : The data written in the internal ROM by a download Figure 4.34 Difference in the Internal ROM Data after Download Depending on Whether the Checkbox is Checked 4.14 Starting up the R8C E1/E20 Emulator Debugger When "Connected" is displayed in the [Output] window of the High-performance Embedded Workshop after clicking the [OK] button at the completion of the [Configuration Properties] dialog box setting, the emulator initiation is completed. Figure 4.35 [Output] Window Note: [*1] When the user program has already been downloaded to the internal flash memory, source-level debugging is not possible because there is no debugging information on the user program after the emulator has been activated. To perform source-level debugging, download a load-module file that includes debugging information after the E1 or E20 emulator has been activated. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 45 of 137 E1/E20 Emulator 5. Debugging Functions 5. Debugging Functions 5.1 List of debugging functions Table 5.1 shows the list of functions supported when the operation mode is [Writing the on-chip flash memory mode]. Table 5.2 shows the list of functions supported when the operation mode is [Debugging mode]. Table 5.1 List of R8C E1/E20 Emulator Debugger Functions ([Writing the on-chip flash memory mode]) Item Program download Online help Support Command line function { { { Content Subject: Internal ROM (settable in block units) Describes the usage of each function or command syntax input from the command line window. Supports command input. Batch processing is enabled when a file is created by arranging commands in input order. Only the program downloading commands can be used. ¯ {: Supported, U: Alternative functions supported, ¯: Not supported Other function R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 46 of 137 E1/E20 Emulator 5. Debugging Functions Table 5.2 List of R8C E1/E20 Emulator Debugger Functions ([Debugging mode]) Item Program download Reset function Memory access functions Set/Display/Fill/Move/Compare/Search Realtime RAM monitor Single-line assembly Disassembly display CPU register access SFR register access User program execution functions Execution functions Step functions Break functions On-chip function Trace functions break Cause of break Internal trace External trace Trace content Support { { { U Content Subject: Internal RAM and internal ROM (settable in block units) Reset from the emulator debugger when the user program has stopped Subject: SFR registers, internal RAM, internal ROM Automatic memory content update function during user program execution available { { { Displaying/Setting of the CPU registers { Displaying/Setting from the IO window { { { Go/Free go/Go to cursor/Reset Go (1) Single stepping (one step: one instruction) (2) Source-level step (one step: one-line source) (3) Step over (no break within subroutine) (4) Source-level step over (no break within subroutine) (5) Step out (when the PC points to a location within a subroutine, execution continues until it returns to the calling function) S/W breakpoint (up to 256 points) { { Forced break Pre-PC break (address match break), 8 points { Data access break, 2 points Event A: Comparison with the address/data mask, and access condition (R, W, R/W) can be set. Event B: Comparison with the address mask, and access condition (R, W, R/W) can be set. { { { ¯ { Trace full break Cause of break display Built-in trace function (using the trace buffer in the MCU) No external trace function available 4 branch instructions (branch source/destination PC) or Up to 8 data cycles can be specified. Search/filter Performance measurement function ¯ ¯ Debug console function Stack trace function ¯ { Start/Stop function { Command line function { Execution time measurement function Hot plug-in Coverage function Online help { ¯ ¯ { Uses a counter in the MCU to measure the number of cycles taken to execute a specified range of code. Allows standard input and output for the user program. Shows which function called the function corresponding to the current PC value. Facility for running specific routines in the user program immediately before the start of and immediately after the end of execution of the user program. Supports command input. Batch processing is enabled when a file is created by arranging commands in input order. Shows the time for which the user program has been executed. Describes the usage of each function or command syntax input from the command line window. {: Supported, U: Alternative functions supported, ¯: Not supported R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 47 of 137 E1/E20 Emulator 5. Debugging Functions 5.2 Downloading a program Download the load module to be debugged. To download a program, choose [Download] from the [Debug] menu and select a desired load module or right-click on a load module under [Download modules] of the [Workspace] window and then choose [Download] from the popup menu. Alternatively, double-click on the name of the load module. The program is downloaded to the RAM or flash memory. This function also downloads information required for source-level debugging such as debugging information. Notes: [*1] Before a program can be downloaded, you must have it registered as a load module in the High-performance Embedded Workshop. [*2] If the specified access size is other than “1 byte,” odd portions of data cannot be downloaded correctly. For the specification of [Access size] in the download function below, make sure the access size at download time is fixed to 1 (byte). (1) Dialog opened by clicking on the [Download A New Module] menu (2) Dialog opened from the [Memory] window’s [Load] menu [*3] The vector area, ID code area and the OFS, OFS2 areas have their values rewritten by the emulator, so be aware that their checksums do not match (when the operation mode is [Debugging mode]). For the reset vector addresses also, although downloaded values are displayed in the [Memory] window, etc., be aware that they are the emulator’s internal values in the cache, and that the values set in the actual flash memory are those that were specified in the emulator. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 48 of 137 E1/E20 Emulator 5. Debugging Functions 5.3 Opening a source file 5.3.1 Viewing the source code Select your source file and click the [Open] button to make the High-performance Embedded Workshop open the file in the integrated editor. It is also possible to display your source files by double-clicking on them in the [Workspace] window. Figure 5.1 [Editor] Window The columns listed below are to the left of the [Source] column. The first column ([Source Address] column): Address information The second column ([On-Chip Breakpoint] column): On-chip breakpoint information The third column ([S/W Breakpoint] column): PC, bookmark, and breakpoint information [Source Address] column When a program is downloaded, an address for the current source file is displayed on the [Source Address] column. These addresses are helpful when deciding where to set the PC value or breakpoints. [On-Chip Breakpoint] column The [On-Chip Breakpoint] column displays the following item: : Indicates the address condition for a pre-PC breakpoint. The number of address conditions that can be set for pre-PC breakpoints is the same as the overall number of events, which varies with the MCU. Double-clicking on the [On-Chip Breakpoint] column produces a bitmap symbol as shown above in the corresponding line. [S/W Breakpoint] column The [S/W Breakpoint] column displays the following items: : Bookmark : S/W breakpoint : Program counter (PC) R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 49 of 137 E1/E20 Emulator 5. Debugging Functions 5.3.2 Switching off a column in all source files (1) Right-click on the [Editor] window. (2) Click the [Define Column Format…] menu item. (3) The [Global Editor Column States] dialog box is displayed. A checkbox indicates whether the column is enabled or not. If it is checked, the column is enabled. If the check box is gray, the column is enabled in some files and disabled in others. Deselect the check box of a column you want to switch off. (4) Click the [OK] button for the new column settings to take effect. Figure 5.2 [Global Editor Column States] Dialog Box 5.3.3 Switching off a column in one source file (1) Open the source file which contains the column you want to remove and right-click on the [Editor] window to open a popup menu. (2) Click on the [Columns] menu item to display a cascaded menu item. The columns are displayed in this popup menu. If a column is enabled, it has a tick mark next to its name. Clicking on the entry will toggle whether the column is displayed or not. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 50 of 137 E1/E20 Emulator 5. Debugging Functions 5.3.4 Viewing the assembly-language code Click the [Disassembly] toolbar button at the top of the window when a source file is opened to show the assemblylanguage code that corresponds to the current source file. If you do not have a source file, but want to view code in the assembly-language level, either choose [View -> Disassembly] or click the [Disassembly] toolbar button ( ). The [Disassembly] window opens at the current PC location and shows [Address] and [Code] (optional) which show the disassembled mnemonics (with labels when available). Selecting the [Mixed display] toolbar button ( ) displays both the source and the code. The following shows an example in this case. Figure 5.3 [Disassembly] Window 5.3.5 Modifying the assembly-language code You can modify the assembly-language code by double-clicking on the instruction that you want to change. (1) The [Assembler] dialog box will be opened. The address, machine code, and disassembled instruction are displayed. (2) Enter the new instruction or edit the current instruction in the [Mnemonic] field. (3) Pressing the [Enter] key will assemble the instruction into memory and move on to the next instruction. Clicking the [OK] button will assemble the instruction into memory and close the dialog box. (4) Clicking the [Cancel] button or pressing the [Esc] key will close the dialog box. Figure 5.4 [Assembler] Dialog Box Note: [*1] The assembly-language display is disassembled from the machine code on the actual memory. If the memory contents are changed, the dialog box (and the [Disassembly] window) will show the new assembly-language code, but the display content of the [Editor] window will not be changed. This is the same even if the source file contains assembly code. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 51 of 137 E1/E20 Emulator 5. Debugging Functions 5.4 Memory access functions The E1 and E20 emulators have the following memory access functions. 5.4.1 Memory read/write function [*1] The memory contents are displayed in the [Memory…] window. Choose [View -> CPU -> Memory…] or click the [Memory] toolbar button ( ) to open the [Display Address] dialog box. Enter the start address to be displayed in the [Display Address] edit box to open the [Memory] window. (1) User program downloading function A load module registered in the workspace can be downloaded. For details, see “5.2 Downloading a program” on page 48. (2) Memory data uploading function The specified amount of memory from the specified address can be saved in a file. Select [Save] from the popup menu in the [Memory] window. (3) Memory data downloading function The memory contents saved in a file can be downloaded. Select [Load] from the popup menu in the [Memory] window. (4) Displaying variables The contents of a selected variable in the user program are displayed. (5) Automatic updating of data in memory [*2] The automatic memory update function permits you to inspect in the memory window etc. the memory content of the MCU and how it is accessed. The display of data in memory in the [Memory] window can be automatically updated while the user program is running. By making use of the MCU’s built-in debug functions, it helps to minimize the idle time during which the user program is halted. Memory locations whose values have changed from the previous session are displayed in red. The interval for updating the display is also specifiable. The display updating interval may be longer than the specified interval due to operating conditions (those listed below). - Performance of and load on the host machine - Communications interface - Window size (memory display range) and the number of windows being displayed 5.4.2 Other memory operation functions [*3] [*4] Other functions are as follows (for details, refer to the online help.): - Memory fill - Memory move - Memory compare - Memory search - Displaying label and variable names and their contents Notes: [*1] Only the address range displayed in the [Memory] window is referenced. Since there is no cache in the emulator except the internal ROM area, the target MCU is always accessed. If the memory is written in the [Memory] window, the entire address range displayed in the [Memory] window will be accessed for updating the window. When the [Memory] window is not to be updated, select [Lock Refresh] from the popup menu opened by right-clicking in the window. [*2] If a reset such as a S/W reset or hardware reset (RESET#) is issued while a user program is running, the memory access occurred at that point cannot be set or changed correctly. [*3] Do not specify 4 bytes or 8 bytes as the data size for the move, compare, and search functions. If these sizes are specified, the emulator will not operate correctly. Also, these functions have a maximum range of 16 Mbytes. These functions are enabled only for the internal RAM and internal ROM areas. [*4] These functions do not work normally for the area the debug monitor is located. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 52 of 137 E1/E20 Emulator 5. Debugging Functions 5.4.3 Notes on accessing the SFR areas You can reference or set the contents of the SFR areas in the [Memory] window or the [IO] window. Note the followings. (1) When accessing the special registers You may not be able to access some special registers successfully during the user program halt. [*1] [*2] These registers include: - Access prohibited addresses - Registers for which access order is specified from high-order byte to low-order byte - Registers that can be accessed only by a specific instruction - Registers whose bus width specification does not match the bus width set in the [Memory] window - Registers that can be accessed on conditions (one of which is that fOCO-F must be faster than the CPU clock to access the register) Notes: [*1] Follow the instructions in the hardware manual of the target MCU to access to the SFR areas. [*2] When the user program halts, the following registers may not be overwritten in some cases (applicable for R8C/35C, R8C/36C and R8C/38C only). Timer RC counter: 0126h, 0127h Timer RD counter: 0156h, 0157h Timer RG counter: 0176h, 0177h R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 53 of 137 E1/E20 Emulator 5. Debugging Functions (2) SFR registers that can be accessed from the [IO] window [*1] [*2] By default, an I/O file is displayed in the [IO] window according to the MCU group selected in the [Initial Settings] dialog box. As shown in the table below, an I/O file for the MCU group which has the largest pin count is displayed. Table 5.3 I/O Files Displayed by Default in the [IO] Window Types [Initial Settings] dialog box display I/O files shown by default R8C/3xC R8C/3xC(48pins or less) Group R8C/35C R8C/35C(52pin) Group R8C/35C(16KB, 24KB, 32KB Internal ROM) R8C/38C(48KB, 64KB, 96KB, 128KB Internal ROM) R8C/3xC(64pins or more) Group R8C/38C R8C/3xM(48pins or less) Group R8C/35M R8C/35M(52pin) Group R8C/35M(16KB, 24KB, 32KB Internal ROM) R8C/3xM(64pins or more) Group R8C/38M R8C/3xT R8C/3xT Group R8C/3JT R8C/3NT R8C/3NT Group R8C/3NT R8C/3MQ R8C/3MQ Group R8C/3MQ R8C/3xW R8C/3xWXYZ Group R8C/38W R8C/3xX R8C/3xWXYZ Group R8C/38X R8C/3xY R8C/3xWXYZ Group R8C/38Y R8C/3xZ R8C/3xWXYZ Group R8C/38Z R8C/3xGHPR R8C/3xGHPR Group R8C/34P (not attached) R8C/3xU,3xK R8C/3xU, 3xK Group R8C/34K R8C/L3xC R8C/L3xC Group R8C/L3AC R8C/L3xM R8C/L3xM Group R8C/L3AM R8C/LA3A,LA5A R8C/LA3A, LA5A Group R8C/LA5A (not attached) R8C/LA6A,LA8A R8C/LA6A,LA8A Group R8C/LA8A R8C/LAPS R8C/LAPS Group R8C/LAPS (not attached) R8C/3xM R8C/38M(48KB, 64KB, 96KB, 128KB Internal ROM) Notes: [*1] You can change the I/O file to that of your target MCU installed with the debugger. You can edit the I/O file (xxxx.io) to add or delete registers to the set for display in the [IO] window. [*2] For the contents to be included in the I/O file (xxxx.io), refer to reference 6, I/O File Format, in the Highperformance Embedded Workshop User’s Manual. The following directory contains the I/O file (xxxx.io). : \Tools\Renesas\DebugComp\Platform\E1E20\E20R8C\IOFiles The I/O file attached to the R8C E1/E20 Emulator Debugger was created based on the SFR header file which was already made accessible to the public when the debugger was developed. As such, it is possible that the target SFR header file, if updated due to incorrect entry, etc., may not match the I/O file. You can edit the I/O file as shown above. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 54 of 137 E1/E20 Emulator 5. Debugging Functions 5.5 Outline of break functions The R8C E1/E20 Emulator Debugger provides three break functions: forced break, S/W break and on-chip break. The break functions can be set singly or multiply. The list of break functions supported for the MCUs in this user’s manual is shown in Table 5.4. 5.5.1 Forced break The forced break function is used to forcibly cause a break in execution of the user program. 5.5.2 S/W break (software break) This function breaks the program by rewriting the instruction of the specified address to an instruction (BRK instruction) dedicated to the debugger. [*1] Since the op-code at the specified address is written to the instruction dedicated to the debugger, when a S/W breakpoint is set, a write to on-chip memory (flash memory and RAM) will occur. (Similarly, removing a S/W breakpoint involves a write to memory.) For details on the S/W break function, see “5.6 Using S/W breakpoints” on page 56. 5.5.3 On-chip break With the MCUs in this user’s manual, the following three on-chip break functions are available: pre-PC break, data access break and trace full break. For details on the on-chip break function, see “5.7 Outline of on-chip break functions” on page 59. y Pre-PC break (Address match break) This function breaks the program immediately before a specified address instruction is executed. It can be realized using the address match interrupt of the MCU. An event in this function is called a “PC event”. y Data access break This function breaks the program when a specified event is encountered. You can combine two points of the data access event. An event in this function is called a “DA event”. y Trace full break This function breaks the program when the trace buffer is filled. Table 5.4 Break Functions Event type Forced break S/W break [*2] On-chip Pre-PC break break (address match break) [*2] Data EventA access break EventB Trace full break Number of points that can be set (max.) Number of points that can be registered (max.) 256 8 32 1 8 1 8 Break condition No Specified address Specified address Specified address & specified data Specified address Trace buffer full Flash memory rewrite No Yes No Can a breakpoint be set while the program is running? No No No No No No Yes No [*3] Yes Notes: [*1] When the instruction of the address where a S/W breakpoint was placed is displayed in the [Memory] window, what is displayed is not “BRK” instruction (00h). [*2] When execution is restarted from the address where it stopped at a breakpoint (S/W breakpoints or pre-PC breakpoints), the actual instruction at the address must be executed as a single step before further execution continues. Operation is thus not in real time. [*3] You can set or remove S/W breakpoints in the internal RAM. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 55 of 137 E1/E20 Emulator 5. Debugging Functions 5.6 Using S/W breakpoints When the program you have created is run and the address you have set as a S/W breakpoint is reached, a message “Software Break” is displayed on the [Debug] sheet of the [Output] window, with the program made to stop there. At this time, the [Editor] or the [Disassembly] window is updated, and the position at which the program has stopped is marked with an arrow [ ] in the S/W Breakpoints column. Figure 5.5 Stop at S/W Break Notes: [*1] When a break occurs, the program stops immediately before executing the line or instruction at which a S/W breakpoint is set. If Go or Step is selected after the program has stopped at that S/W breakpoint, the program restarts from the line marked with an arrow. [*2] If multiple S/W breakpoints are set, the program breaks at any one of those breakpoints reached. [*3] S/W breaks cannot be specified in other than the MCU’s internal RAM and internal ROM areas. [*4] When you change a program in the [Editor] window and download that program for the MCU, the addresses at which you’ve set S/W breaks may not be corrected normally, depending on changed contents. For this reason, it is possible that the addresses at which S/W breaks are set will shift. After the user program is downloaded, check again the addresses at which S/W breaks are set. [*5] When the user program is executed from the address at which a S/W break is set, the relevant address (i.e., the user program start address) is stepped through before the user program is run. Therefore, the program behaves differently, with regard to the execution time and interrupts, than it would when no S/W breaks are set. [*6] If you do not remove the S/W breakpoint before disconnecting the emulator from the target MCU and reconnect it, the S/W breakpoint will remain in the following case: [*7] - The flash memory block that contains the S/W breakpoint was checked (so that the data in the flash memory remains) in the [Configuration Properties] dialog box at debugger startup. When you have S/W breaks set in the internal RAM of the MCU, do not rewrite the content of their addresses there in the [Memory] Window, etc. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 56 of 137 E1/E20 Emulator 5. Debugging Functions 5.6.1 Adding/removing S/W breakpoints Follow one of the following methods to add or remove S/W breakpoints y From the [Editor] or the [Disassembly] window y From the [Breakpoints] dialog box (only removing) y From the command line (1) From the [Editor] or the [Disassembly] window 1. Check to see that the [Editor] or the [Disassembly] window that is currently open includes the position at which you want to set a S/W breakpoint. 2. In the S/W Breakpoints column, double-click the line where you want the program to stop. Or you use the method described below to set a breakpoint. y Select [Toggle Breakpoint] from the popup menu or press the F9 key on the keyboard. 3. When a S/W breakpoint is set, a red circle [ ] is displayed at the corresponding position in the S/W Breakpoints column of the Editor or the [Disassembly] window. Double-clicking one more time removes the breakpoint. Add S/W Breakpoint Figure 5.6 Adding or Removing a S/W Breakpoint in the [Editor] Window (2) From the [Breakpoints] dialog box Select [Source Breakpoints] from the [Edit] menu to bring up the [Breakpoints] dialog box. In this dialog box, you can alternately enable or disable a currently set breakpoint, as well as remove it. Figure 5.7 Enabling or Disabling Breakpoints in [Breakpoints] Dialog Box (3) From the command line Refer to the help file. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 57 of 137 E1/E20 Emulator 5. Debugging Functions 5.6.2 Enabling/disabling S/W breakpoints Follow one of the following methods to enable or disable S/W breakpoints. y From the [Editor] or the [Disassembly] window y From the [Breakpoints] dialog box y From the command line (1) From the [Editor] or the [Disassembly] window 1. Place the cursor at the line where a S/W breakpoint exists and then select [Enable/Disable Breakpoint] from the popup menu. Or press the Ctrl and F9 keys together. 2. The S/W breakpoint is enabled or disabled alternately. Disable Figure 5.8 [Editor] Window and Pop-up Menu (2) From the [Breakpoints] dialog box Select [Source Breakpoints] from the [Edit] menu to bring up the [Breakpoints] dialog box. In this dialog box, you can alternately enable or disable a currently set breakpoint, as well as remove it. Figure 5.9 Enabling or Disabling Breakpoints in [Breakpoints] Dialog Box (3) From the command line Refer to the help file. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 58 of 137 E1/E20 Emulator 5. Debugging Functions 5.7 Outline of on-chip break functions 5.7.1 [On-Chip Event] dialog box This window is provided for setting on-chip event break conditions and trace conditions. Select [View -> Event -> On-Chip Event] to bring up the [On-Chip Event] dialog box. Figure 5.10 [On-Chip Event] Dialog Box (1) Condition setting tabs In this dialog box, you can add, delete, enable, or disable the following two kinds of events. Tab Event Before PC Break Content Sets Event A, B-related settings and trace conditions Sets pre-PC breaks using PC events Remark Default display when the window is opened (2) Registered events… Displays the currently registered events in list form. See “5.10 Registering events” on page 73 for details. (3) Save… Saves the contents of this dialog box that you’ve set in a file. (4) Load… Loads the set contents of the [On-Chip Event] dialog box from a file in which they were saved. When normally loaded, the set contents of this dialog box are discarded and replaced with the contents of the file. (5) Apply Clicking the [Apply] button causes the contents set in this dialog box to be set in the E1 or E20 emulator. If any item of the set contents is changed in the [On-Chip Event] dialog box or the set contents are loaded from a file using the [Load] button, the window name on the title bar is marked with an asterisk (*) at its side. This asterisk disappears when you click the [Apply] button. (6) Close Closes this dialog box. If you did not click the [Apply] button after changing the set contents in this dialog box, a message box is displayed for your confirmation. The following results depending on what you select in this message box. y When you select [Yes]: The set contents of this dialog box are applied before closing this dialog box. y When you select [No]: The set contents of this dialog box are discarded before closing this dialog box. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 59 of 137 E1/E20 Emulator 5. Debugging Functions 5.7.2 [Event] tab Use this event tab to add, delete, enable or disable Event A and Event B, or set the break and trace conditions for these events. Figure 5.11 shows the [On-Chip Event] dialog box, Table 5.5 shows the settings of Event A and Event B, and Table 5.6 shows the settings of break conditions, and Table 5.7 shows the settings of trace conditions. Figure 5.11 [On-Chip Event] Dialog Box ([Event] Tab) Table 5.5 Settings of Event A and Event B Item Content Display content When you double-click a registered event, the [Event] dialog box is displayed, allowing you to inspect or set the event content. By dropping text of a function name, etc. into the list you can register a new one. Item Content Remark Check column Checking the checkbox enables the Event A and Event B can each be enabled event. one event at a time. If the checkbox for a second event is checked, the first event is disabled and the second event is enabled. Event Displays “EVxx” Event A and Event B can have up to a total of 8 events registered, respectively. Type Displays DA (data access event). Contents Displays the set contents of events. Channel [Add] button [Delete] button [Enable] button [Disable] button Displays “0" for Event A, or “1” for Event B. Comments Displays comments for each event. Brings up the [Event] dialog box, allowing you to add event contents. A newly added event is enabled. If there are 8 registered events, this button is grayed out and you cannot register a new one. Deletes all of the selected events from the list. (Instead of using the [Delete] button, you can use the Ctrl + Del keys to delete.) Enables the event selected in the list. If there are multiple selected events, this button is grayed out. Disables the event selected in the list. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 60 of 137 E1/E20 Emulator 5. Debugging Functions Table 5.6 Settings of Break Conditions Option Break Trace full break Description Select a break condition. - None: No break by event (default) - Event A: Breaks the program when the Event A is encountered. - Event A or B: Breaks the program when either the Event A or Event B is encountered. - Event A and B: Breaks the program when both the Event A and Event B are encountered. - Event B->A: Breaks the program when an event is encountered in the order of the Event B and Event A. Check it to break the program when the trace buffer is filled. This option is unchecked by default (trace full break in disabled). Trace full break can be set with the break condition by event. Table 5.7 Settings of Trace Conditions Option Type Start Stop Pick up Description Select a trace type from the following: Branch trace (default): Branch trace Traces the branch source address and branch destination address of branch processing that occurred during the execution of the user program. Data access: Data access Traces the data access information of events that occurred during the execution of the user program. Select a start condition for the trace measurement from the following options. Starts a measurement when starting executing the user program. Go (default): Starts a measurement when the Event A is encountered. Event A Starts a measurement when either the Event A or Event B is encountered. Event A or B: Starts a measurement when both the Event A and Event B are Event A and B: encountered. Starts a measurement when an event is encountered in the order of the Event B->A: Event B and Event A. Select a stop condition for the trace measurement from the following options. Stops a measurement when stopping executing the user program. Break (default): Stops a measurement when the trace data is filled. Trace FULL: Stops a measurement when the Event A is encountered. Event A Stops a measurement when either the Event A or Event B is encountered. Event A or B: Stops a measurement when both the Event A and Event B are Event A and B: encountered. Stops a measurement when an event is encountered in the order of the Event B->A: Event B and Event A. Select an event to record when the trace type is [Data access] from the following: Event A (default): Records only data access which encounters the condition of the Event A. Event A or B: Records only data access which encounters the condition of either the Event A or Event B. Notes: [*1] Note on the trace start condition When setting an event (other than [Go]) for the trace start condition, a data when the event is encountered is not recorded to the trace data. The data of the event which is encountered the next time is recorded. [*2] Notes on the trace stop condition When the trace start and trace stop conditions occur simultaneously, the trace stop condition becomes invalid. When setting other than [Break] for the trace stop condition, the display contents of the [Trace] window will not be updated until the user program stops even after a trace stop condition is encountered. [*3] If a reset such as a hardware reset (RESET#) or watchdog timer reset is issued while a user program is running, the encountered event records and trace records made until the reset is issued will be cleared. [*4] Only access via the CPU bus is traceable. No record of access by the DTC is included in trace data. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 61 of 137 E1/E20 Emulator 5. Debugging Functions 5.7.3 [Before PC Break] tab Use this event tab to setup a pre-PC break. Figure 5.12 shows the [Before PC Break] tab of the [On-Chip Event] dialog box, and Table 5.8 shows the tab settings. Figure 5.12 [On-Chip Event] Dialog Box ([Before PC Break] Tab) Table 5.8 [On-Chip Event] Dialog Box ([Before PC Break] Tab) Item Content Display content When you double-click a registered event, the [Event] dialog box is displayed, allowing you to inspect or set the event content. By dropping text of a function name, etc. into the list you can register a new one. Item Content Remark Check column Checking the checkbox enables the event. Up to 8 events can be enabled. Event Displays “EVxx” Up to a total of 32 events can be registered. Type Displays PC (address match event). Contents Displays the set contents of events. Channel Displays one of 0 to 7. [*1] [Add] button [Delete] button [Enable] button [Disable] button Comments Displays comments for each event. Brings up the [Event] dialog box, allowing you to add event contents. [*2] If there are 32 registered events, this button is grayed out and you cannot register a new one. Deletes all of the selected events from the list. (Instead of using the [Delete] button, you can use the Ctrl + Del keys to delete.) Enables all of the events selected in the list. Disables the event selected in the list. Notes: [*1] Displays “#” until the [Apply] button is clicked. [*2] For up to 7 events, a newly added event is enabled. If there are already 8 registered events, a message “PC event is full.” will be displayed, and the newly added event is registered in a disabled state. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 62 of 137 E1/E20 Emulator 5. Debugging Functions 5.7.4 [Event] dialog box This window is used to set the contents of PC events (address match breaks) and DA events (Event A, B breaks). This window is displayed when you set events from the [Event] tab or [Before PC Break] tab of the [On-Chip Event] dialog box or register events in the [Registered Events] dialog box. a) Event type The event type [Address Match] (for PC events) or [Data Access] (for DA events) can be selected. The set items switch over when the selected event type is changed. The event type [Data Access] is selected when this dialog box is opened from the [Event] tab of the [On-Chip Event] dialog box or [Address Match] is selected when this dialog box is opened from the [Before PC Break] tab. When using the [Registered Events] dialog box to register an event, the settings can be registered with either event type. [*1] b) Condition setting tabs This dialog box allows you to set event conditions on the [Event] tab and set comments on events on the [Comment] tab. (1) [Event] dialog box (event type: address match) When [Address Match] is selected for the event type, this dialog is displayed as shown in Figure 5.13. Figure 5.13 [Event] Dialog Box (When [Address Match] is Selected) Note: [*1] No events can be registered exceeding the maximum registrable number of events. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 63 of 137 E1/E20 Emulator 5. Debugging Functions 5.7.5 [Event] dialog box (event type: data access) When [Data Access] is selected for the event type, this dialog is displayed as shown in Figure 5.14. The display contents are shown in Table 5.9. Figure 5.14 [Event] Dialog Box (when [Data Access] is Selected) Table 5.9 Display Contents of the [Event] Dialog Box Item Address condition Address Mask Data Condition Read/Write Access Size Compare Condition [*1] Compare Data Mask Description Specify an address to detect the data access. • Checking this checkbox makes it possible to mask an address. This checkbox is, by default, unchecked (not masked). • Specify the bit number to set the address mask. The specified lower bits of the specified address are masked. Specifiable in the range 1 to 15. Select an access type from the following: - Read/Write: Read or Write - Read - Write Select one from Byte, Word or Not specify for the Access Size. If a data access which does not match the specified access size occurs, the event is not encountered. When specifying Word for the Access Size, specify the even address for the Address item. • Checking this checkbox makes it possible to specify data comparison. This checkbox is, by default, unchecked (no data comparison). [*2] Specify the data value to compare. Access size (when Byte specified): 00-FFh Access size (when Word specified): 0000-FFFFh • Checking this checkbox makes it possible to mask data. This checkbox is, by default, unchecked (not masked). • Data is not masked if the mask value is blank. Notes: [*1] Conditions here can be set for only Event A. (For Event B, although possible to enter conditions here, they cannot be registered.) No events can be registered exceeding the maximum registrable number of events. You cannot register an Event B which includes any Compare Condition settings. [*2] If the [Compare Data] box contains no data in it while this checkbox is checked, this dialog box is not closed even when you click the [OK] button. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 64 of 137 E1/E20 Emulator 5. Debugging Functions 5.7.6 Notes on the event settings When setting the Event A or Event B, set the address, access size and access type referring to Table 5.10 below. Table 5.10 Availability of the Event Setting Event setting condition Availability of event setting Byte read to even address Available Byte write to even address Available Word read to even address Available Word write to even address Available Byte read to odd address Available Byte write to odd address Available Word read to odd address Available Word write to odd address Available Example of Event Setting dialog box Address: 400h Access size: Byte Access type: Read or Read/Write Address: 400h Access size: Byte Access type: Write or Read/Write Address: 400h Access size: WORD Access type: Read or Read/Write Address: 400h Access size: WORD Access type: Write or Read/Write Address: 401h Access size: Byte Access type: Read or Read/Write Address: 401h Access size: Byte Access type: Write or Read/Write Address: 401h Access size: Byte [*1] Access type: Read or Read/Write Address: 401h Access size: Byte [*1] Access type: Write or Read/Write Notes: [*1] To detect wordwise accesses to odd addresses, specify [Byte] for the access size. Note that the data comparable on this condition is one lower byte. [*2] Note on setting the Event A When setting an event for the Event A, do not specify a mask for an address and data simultaneously. If you mask them simultaneously, an event will not be encountered. [*3] Note on setting an event Do not specify the following addresses as the address of the event. Otherwise, an unauthorized break may occur. - Address in the interrupt vector table - Address set in the interrupt vector table (interrupt routine start address) - Branch destination address of the branch instruction Both fixed vector table and variable vector table are included with the interrupt vector table above. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 65 of 137 E1/E20 Emulator 5. Debugging Functions 5.8 Adding on-chip events (DA events) Use one of the following to set up an event. y [On-Chip Event] dialog box y Drag-and-drop from another window (for add only) y Command line 5.8.1 Adding or changing from the [On-Chip Event] dialog box (1) Select [View -> Event -> On-Chip Event] to bring up the [On-Chip Event] dialog box. Then switch to the [Event] tab. (2) To add an event, click the [Add] button in either the [Event A] or [Event B] section in the [Event] tab and bring up the [Event] dialog box. To change or inspect the existing event, double-click on the event and bring up the [Event] dialog box. (3) Set or inspect the event conditions in the [Event] dialog box and click the [OK] button. (4) Settings made according to the step (3) will be added to the [On-Chip Event] dialog box. Click the [Apply] button, then the [OK] button. Figure 5.15 Example of On-chip Event (DA Event) Setting Figure 5.16 Example of [Event] Dialog Box (DA Event) Setting R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 66 of 137 E1/E20 Emulator 5. Debugging Functions 5.8.2 Dragging and dropping from other windows (addition only) (1) When dragging and dropping a variable name or a function name in the [Editor] window By dragging and dropping a variable name into the [Event] column of the [On-Chip Event] dialog box, you can set access to that variable as an event to be detected. At this time, the size of the variable is automatically set as a condition of the data access event. Only global or static variables taking up 1 or 2 bytes can be registered for event detection. Static variables in functions cannot be registered. Figure 5.17 Adding an Event by Dragging and Dropping (2) When dragging and dropping an address range in the [Memory] window Select an address range in the [Memory] window and drag and drop it into the [Event] column of the [On-Chip Event] dialog box. In this way, you can set access to an address in the selected address range as an event to be detected. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 67 of 137 E1/E20 Emulator 5. Debugging Functions 5.8.3 Deleting, enabling, or disabling from the [On-Chip Event] dialog box (1) Select [View -> Event -> On-Chip Event] to bring up the [On-Chip Event] dialog box. Then switch to the [Event] tab. (2) Follow the instructions below to set the Event A or Event B section in the [Event] tab. Deleting an event: Select the event you want to delete and click the [Delete] button. To delete multiple events at a time, select the lines you want to delete while holding down the Shift or Ctrl key and click the [Delete] button. (Instead of the [Delete] button, you can use the Ctrl + Del keys to delete.) Enabling an event: Select the event you want to enable and click the [Enable] button. Disabling an event: Select the event you want to disable and click the [Disable] button. (3) Click the [Apply] button, then the [OK] button. 5.8.4 Command line Refer to the online help. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 68 of 137 E1/E20 Emulator 5. Debugging Functions 5.9 Adding on-chip events (PC event) Use one of the following to set up an event. y [On-Chip Event] dialog box y [On-chip Break points] column of the [Editor] window y Drag-and-drop from another window (for add only) y Command line 5.9.1 Adding from the [On-Chip Event] dialog box (1) Select [View -> Event -> On-Chip Event] to bring up the [On-Chip Event] dialog box. Then switch to the [Before PC Break] tab. (2) To add an event, click the [Add] button to bring up the [Event] dialog box. To change or inspect the existing event, double-click the event to bring up the [Event] dialog box. (3) Set or inspect the event conditions in the [Event] dialog box and click the [OK] button. (4) Settings made according to the step (3) will be added to the [On-Chip Event] dialog box. Click the [Apply] button, then the [OK] button. Figure 5.18 Example of On-chip Event (PC Event) Setting Figure 5.19 Example of [Event] Dialog Box (PC Event) Setting R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 69 of 137 E1/E20 Emulator 5. Debugging Functions 5.9.2 [On-chip Break points] column of the [Editor] window (1) Adding/deleting break conditions In the [Editor] window, double-click the [On-chip Break points] column on a line that has no pre-PC breaks set. That way you can set a pre-PC break in an enabled state (blue z). Also, when you double-click the [On-chip Break points] column on a line that has a pre-PC break in an enabled state (blue z) or disabled state (white {), the pre-PC break is deleted. Note that setting pre-PC break conditions from the [Editor] window is possible even when the user program is running. (2) Enabling/disabling break conditions Break conditions cannot be enabled or disabled from this window. Use the [On-Chip Event] dialog box or the [Command line] to do it. Figure 5.20 [Editor] Window Notes: [*1] You cannot set pre-PC breakpoints in the [Editor] window unless you’ve clicked the [Apply] button after changing settings in the [On-Chip Event] dialog box, i.e., when the set contents are not enabled (the title bar is marked with an asterisk (*) at the end of it). [*2] The column display in the [Editor] window is updated when you’ve clicked the [Enable] button after changing settings in the [On-Chip Event] dialog box or set on-chip events from the command line. Also, the contents of pre-PC break conditions you’ve set in the [Editor] window are reflected in those of pre-PC break conditions you set in the [On-Chip Event] dialog box or from the command line. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 70 of 137 E1/E20 Emulator 5. Debugging Functions 5.9.3 Dragging and dropping from other windows (addition only) (1) When dragging and dropping a variable name or a function name in the [Editor] window By dragging and dropping a variable name into the [Event] column of the [On-Chip Event] dialog box, you can set access to that variable as an event to be detected. By dragging and dropping a function name into the [Event] column of the [On-Chip Event] dialog box, you can set execution of the instruction at the address where that function starts as an event to be detected. Figure 5.21 Adding an Event by Dragging and Dropping (2) When dragging and dropping a label in the [Label] window Select a label in the [Label] window and drag and drop it into the [Event] column of the [On-Chip Event] dialog box. In this way, you can set execution of the instruction at the label as an event to be detected. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 71 of 137 E1/E20 Emulator 5. Debugging Functions 5.9.4 Deleting, enabling, or disabling from the [On-Chip Event] dialog box (1) Select [View -> Event -> On-Chip Event] to bring up the [On-Chip Event] dialog box. Then switch to the [Before PC Break] tab. (2) Follow the instructions below. Deleting an event: Select the event you want to delete and click the [Delete] button. To delete multiple events at a time, select the lines you want to delete while holding down the Shift or Ctrl key and click the [Delete] button. (Instead of the [Delete] button, you can use the Ctrl + Del keys to delete.) Enabling an event: Select the event you want to enable and click the [Enable] button. Disabling an event: Select the event you want to disable and click the [Disable] button. (3) Click the [Apply] button, then the [OK] button. 5.9.5 Command Line Refer to the online help. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 72 of 137 E1/E20 Emulator 5. Debugging Functions 5.10 Registering events 5.10.1 [Registered Events] dialog box The [Registered Events] dialog box can be opened when you click the [Registered events…] button located in the lower right part of the [On-Chip Event] dialog box (Figure 5.22). Figure 5.22 How to Display the [Registered Events] Dialog Box (1) Duplicate Select an event you want to copy and click the [Duplicate] button. The selected event is copied. (2) Add The [Event] dialog box is displayed, allowing you to add event contents. (3) Delete Select the line you want to delete and click the [Delete] button. The selected event is deleted from the list. (Instead of the [Delete] button, you can use the Ctrl + Del keys to delete.) (4) Delete All Deletes all events. (5) Save… Saves the contents of this dialog box that you’ve set in a file. (6) Load… Loads the saved event information from a file. When normally loaded, the set contents of this dialog box are discarded and replaced with the contents of the file. (7) Close Closes this dialog box. Table 5.11 Display Contents of the [Registered Event] Dialog Box Address Type Contents Comments Description Displays DA (data access event) or PC (address match event) Displays the set contents of events Displays comments on each event R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Remark Page 73 of 137 E1/E20 Emulator 5. Debugging Functions 5.10.2 Registering events “Registering an event” refers to placing an event in the list of [Registered Events] dialog box. A registered event can be reused at a later time. Select one of the following ways to register an event. y Through the [On-Chip Event] dialog box y By dragging and dropping y Through the [Registered Events] dialog box (1) Registering events through the [On-Chip Event] dialog box Open the [Comment] tab and select the [Add this event to the list] checkbox. After checking the [Add this event to the list] checkbox, click the [OK] button. The event is added at the specified position and registered in the [Registered Events] dialog box at the same time. Figure 5.23 Registering an Event through the [Event] Dialog Box Figure 5.24 [On-Chip Event] Dialog Box and [Registered Events] Dialog Box R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 74 of 137 E1/E20 Emulator 5. Debugging Functions (2) Registering events by dragging and dropping An event you have created in the [On-Chip Event] dialog box can be registered in the [Registered Events] dialog box by dragging and dropping it into the list. Figure 5.25 [On-Chip Event] Dialog Box and [Registered Events] Dialog Box (3) Registering an event through the [Registered Events] dialog box Click on the [Add…] button in the [Registered Events] dialog box so you can create events. Any event you create through the [Registered Events] dialog box is added to the [Registered Events] dialog box. An explanatory comment for the event can be attached. You can check the [Registered Events] dialog box to see the contents of registered events and comments. Figure 5.26 [Registered Events] Dialog Box R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 75 of 137 E1/E20 Emulator 5. Debugging Functions 5.10.3 Creating events for each instance of usage or reusing events The following two approaches are available for setting data access and address match events. One is to create events in the dialog box each time they are to be used. The other is to choose a condition from the [Registered Events] dialog box and drag and drop it into the event list box in the [On-Chip Event] dialog box. Here, we refer to the former as creating events per usage and the latter as reusing events. Table 5.12 Types of Event Setting Approaches Event setting approaches Creating events per usage Description Select this method if you intend to use a specific condition only once. The event you have created is used without ever being registered. Once the event is no longer in use (i.e., it has been changed or deleted), its setting is nonexistent. Any event created by a simple operation such as double-clicking in the [On-chip Break points] column of the [Editor] window constitutes an event created per usage. Reusing events Any event registered in the [Registered Events] dialog box can be reused by dragging and dropping it into the event list box in the [On-Chip Event] dialog box. (1) Dragging and dropping an event into multiple dialog boxes An event in the [Registered Events] dialog box can be dragged and dropped into multiple event list boxes in the [On-Chip Event] dialog box. If a condition of an event is altered after the event has been dragged and dropped, the alteration is not reflected in the setting of the original event in the [Registered Events] dialog box. (2) Registering duplicates in the [Registered Events] dialog box Even duplicate events that have the same conditions can be registered in the [Registered Events] dialog box. 5.10.4 Activating events To activate the settings for events that you have created, click on the [Apply] button. Settings you make do not become effective until you click on the [Apply] button. [*] after the title on the title bar of the [On-Chip Event] dialog box indicates that some setting is being edited. While you are editing an event, you cannot change the settings via the [Event] column of the [Editor] window or the command line. Figure 5.27 Activating the Settings R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 76 of 137 E1/E20 Emulator 5. Debugging Functions 5.11 Saving/loading the set contents of on-chip events You can save or load the contents of the [On-Chip Event] dialog box. 5.11.1 Saving [On-Chip Event] Settings (1) Click the [Save…] button of the [On-Chip Event] dialog box. The [Save] dialog box will be displayed. (2) Specify a file name to which you want the settings to be saved. The file name extension is .rev. If omitted, the extension .rev is automatically attached. 5.11.2 Loading the set contents of [On-Chip Event] settings (1) Click the [Load…] button of the [On-Chip Event] dialog box. The [Load] dialog box will be displayed. (2) Specify the file name you want to load. When you load a file, the [On-Chip Event] settings you had before you have loaded the file are discarded and the contents are reset with the loaded settings. (3) Click the [Apply] button of the [On-Chip Event] dialog box to confirm the [On-Chip Event] settings you have loaded. 5.12 Saving/loading the set contents of the [Registered Events] dialog box You can save or load the contents of the [Registered Events] dialog box. 5.12.1 Saving [Registered Events] dialog box settings (1) Click the [Save…] button of the [Registered Events] dialog box. The [Save] dialog box will be displayed. (2) Specify a file name to which you want the settings to be saved. The file name extension is .lev. If omitted, the extension .lev is automatically attached. 5.12.2 Loading the set contents of [Registered Events] dialog box settings (1) Click the [Load…] button of the [Registered Events] dialog box. The [Load] dialog box will be displayed. (2) Specify the file name you want to load. When you load a file, the [Registered Events] dialog box settings you had before you have loaded the file are discarded and the contents are reset with the loaded settings. (3) Click the [Apply] button of the [Registered Events] dialog box to confirm the [Registered Events] dialog box settings you have loaded. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 77 of 137 E1/E20 Emulator 5. Debugging Functions 5.13 Trace function 5.13.1 Outline of trace function A trace refers to the function that acquires information on branches that occurred during user program execution and information on bus activities resulting from data accesses. It tracks the flow of user program execution, allowing you to examine points in the program where problems occurred. The MCUs in this user’s manual provide their built-in trace functions (see Table 5.13). Table 5.13 Trace Function of the MCU Used Type of trace Branch trace Data trace Number of jumps Branch information Contents Number of data Contents Content Up to 4 jumps The branch source and the branch destination acquired in a set Displays addresses, mnemonics and source lines of the branch source and destination Up to 8 accesses Displays data accesses when a data access event is encountered. To display a trace result, select [View -> Code -> Trace] to bring up the [Trace] window. Figure 5.28 shows an example of a trace result. Table 5.14 shows the items displayed in the window. Figure 5.28 Example of a Trace Result Table 5.14 Trace Display Item PTR IP Type Address Data Instruction Source Label Content Displays the pointer numbers in the trace buffer. Displays them in ascending order with the trace end position as 0. Displays the instruction pointer (absolute values of the pointer numbers) . When the data trace is set, nothing is displayed. Displays the type of trace information. When the branch trace is set, BRANCH/DESTINATION is displayed. When the data trace is set, READ/WRITE is displayed. When the branch trace is set, an address of the branch source and destination is displayed. When the data trace is set, an address or address range set for the encountered event is displayed. When the data trace is set, the accessed value is displayed. When the branch trace is set, nothing is displayed. When the branch trace is set, the mnemonic of the address is displayed. When the data trace is set, nothing is displayed. “*** EML ***” may be displayed in the Instruction column. This shows that the target program accessed the area of emulator use to control breaks, etc. It is not an error. If there is a source line information correspondent to the Instruction, the correspondent source line is displayed. When the data trace is set, nothing is displayed. If there is a label correspondent to an address in the Instruction, the correspondent label is displayed. When the data trace is set, nothing is displayed. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 78 of 137 E1/E20 Emulator 5. Debugging Functions 5.13.2 Trace setting items To set the trace condition, open the [On-Chip Event] dialog box. Table 5.15 shows trace conditions. Table 5.15 Trace Condition Option Type Start Stop Pick up Description Select a trace type from the following: Branch trace (default): Branch trace Traces the branch source address and branch destination address of branch processing that occurred during the execution of the user program. Data access: Data access Traces the data access information of events that occurred during the execution of the user program. Select a start condition for the trace measurement from the following options. Starts a measurement when starting executing the user program. Go (default): Starts a measurement when the Event A is encountered. Event A Starts a measurement when either the Event A or Event B is encountered. Event A or B: Starts a measurement when both the Event A and Event B are Event A and B: encountered. Starts a measurement when an event is encountered in the order of the Event B->A: Event B and Event A. Select a stop condition for the trace measurement from the following options. Stops a measurement when stopping executing the user program. Break (default): Stops a measurement when the trace data is filled. Trace FULL: Stops a measurement when the Event A is encountered. Event A Stops a measurement when either the Event A or Event B is encountered. Event A or B: Stops a measurement when both the Event A and Event B are Event A and B: encountered. Stops a measurement when an event is encountered in the order of the Event B->A: Event B and Event A. Select an event to record when the trace type is [Data access] from the following:. Event A (default): Records only data access which encounters the condition of the Event A. Event A or B: Records only data access which encounters the condition of either the Event A or Event B. Notes: [*1] Note on the trace start condition When setting an event (other than [Go]) for the trace start condition, a data when the event is encountered is not recorded to the trace data. The data of the event which is encountered the next time is recorded. [*2] Notes on the trace stop condition When the trace start and trace stop conditions occur simultaneously, the trace stop condition becomes invalid. When setting other than [Break] for the trace stop condition, the display contents of the [Trace] window will not be updated until the user program stops even after a trace stop condition is encountered. [*3] If a reset such as a hardware reset (RESET#) or watchdog timer reset is issued while a user program is running, the encountered event records and trace records made until the reset is issued will be cleared. [*4] Only access via the CPU bus is traceable. No record of access by the DTC is included in trace data. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 79 of 137 E1/E20 Emulator 5. Debugging Functions 5.13.3 Trace menu The toolbar menu on the trace window is shown in Table 5.16. Table 5.16 Toolbar Menu on the [Trace] Window Menu name Description Set Sets conditions for acquiring trace information. (For the MCU used here, this function has no effect.) Clear Clears all trace records. Show source Shows the source program corresponding to the relevant address on the selected line. STOP Stops acquiring trace information. (For the MCU used here, this function has no effect.) Restart Starts acquiring trace information from where it stopped. (For the MCU used here, this function has no effect.) Branch trace Selects whether to enable source interpolation during a branch trace. (Grayed out when data trace is selected.) Statistics Executes analysis of statistical information. Function call Shows spots where function calls were made. 5.13.4 Branch trace When the [Trace] window is set for branch trace, you can interpolate the execution state from the branched-to address to the branched-from address based on source information, etc. A window shown in Figure 5.29 is displayed when you click the [Branch trace] button on the toolbar menu. Select [Enable] in this window, and source-interpolated information will be displayed in the trace window. Figure 5.29 Selecting to Enable Interpolation in Brach Trace Figure 5.30 Example of a Source-Interpolated Branch Trace R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 80 of 137 E1/E20 Emulator 5.13.5 5. Debugging Functions Statistics From the trace result information, it is possible to show the number of occurrences of trace information that meet a specified condition and the trace buffer pointer Nos. A window shown in Figure 5.31 is displayed when you click the [Statistics] button on the toolbar menu. Select [Item] in this window and click the [New] and then the [Result] button. The number of occurrences of trace information and the trace buffer pointer Nos. will be displayed. Figure 5.31 Example of Statistics Menu (1) Function call From the trace result information, it is possible to show only the lines where function calls were made. A window is displayed when you click the [Function call] button “F()” on the toolbar menu. Select [Enable] in this window, and information on only function call lines will be displayed in the trace window. Figure 5.32 Example of the Function Call Menu 5.13.6 Saving trace information in files To save trace information in a file, select [Save] from the popup menu. The trace information displayed in the [Trace] window is saved in a text format. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 81 of 137 E1/E20 Emulator 5. Debugging Functions 5.14 Status bar To find out the current status of the debugging platform while E1 or E20 emulator is connected, display the [Status] bar. To open the [Status] bar, select [View -> Status Bar]. Figure 5.33 [Status] bar Example Item PC Contents Status during the execution of the program Task ID A current task ID number is displayed when the module used by the OS is loaded. Factors that causes the user program to stop Break Condition Display content Normal Running Stop Wait Task ID: xx Remarks User program is in stopped state. User program is in execution state. Target MCU is in stop mode. Target MCU is in wait mode. [*1] XX: current Task ID Trace memory overflow break Stepping completed Software break Data access break at DAx,… Data access break (Sequential) Data access break (AND) Trace full break Step execution S/W break Data access break Data access break (sequential) Data access break (events encountered with AND condition) Address match break Forced break Execute the program to the cursor position Address match break User break Go to cursor break Execution Time Execution time between RUN and STOP Unknown break cause hh:mm:ss.xxx.uuu Cause is unknown hh=hour, mm=minute, ss=second, xxx= millisecond, uuu= microsecond Note: [*1] “Stop” is displayed instead of “Wait” when entering wait mode by setting the CM30 bit to “1”. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 82 of 137 E1/E20 Emulator 5. Debugging Functions 5.15 Start/Stop function The emulator can be made to execute specific routines of the user program immediately before starting and immediately after halting program execution. This function is useful if you wish to control a user system in synchronization with starting and stopping of user program execution. 5.15.1 Opening the [Start/Stop function setting] dialog box The routines to be executed immediately before starting and after halting execution of the user program are specified in the [Start/Stop function setting] dialog box. To open the [Start/Stop function setting] dialog box, choose [Setup -> Emulator -> Start/stop Function Setting…] from the menu. Figure 5.34 [Start/Stop function setting] Dialog Box 5.15.2 Specifying the routine to be executed The routines to run immediately before starting and after halting execution of the user program are specified separately. When the [The specified routine is executed immediately before execution of the user’s program] checkbox is selected, the routine specified in the [Starting address] combo box, which is below the checkbox, is executed immediately before execution of the user program starts. When the [The specified routine is executed immediately after the stop of the user’s program] checkbox is selected, the routine specified in the [Starting address] combo box, which is below the checkbox, is executed immediately after execution of the user program stops. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 83 of 137 E1/E20 Emulator 5. Debugging Functions 5.15.3 Restrictions on the Start/Stop function The start/stop function is subject to the following restrictions. (1) The debugging functions listed below are not to be used while the start/stop function is in use. - Memory setting and downloading into the program area of a specified routine - Breakpoint setting in the program area of a specified routine (2) In the specified routines, the following restrictions apply to registers and flags. Table 5.17 Restrictions on Registers and Flags Register and Flag Names ISP register Flag U Flag I Restrictions When execution of a specified routine is ended, the register must be returned to its value at the time the routine started. When a specified routine ends, the value of this flag must always be set to 0. No interrupts are allowed during execution of a specified routine. (3) When either of the specified routines is running, the debugging functions listed below have no effect. - Tracing - Break-related facilities - Setting events within the specified routines (4) While either of the specified routines is running, non-maskable interrupts are always disabled. (5) The table below shows which state the MCU will be in when the user program starts running after execution of a routine specified as a start function. Table 5.18 MCU Status at Start of the User Program MCU Resource CPU registers Memory Peripheral functions Status These registers are in the same state as when the user program last stopped or in states determined by user settings in the [Register] window. Changes made to the contents of registers by the specified routine are not reflected. Access to memory after execution of the specified routine is reflected. Operation of the MCU peripheral functions after execution of the specified routine is continued. 5.15.4 Limitations on statements within specified routines Statements within specified routines are subject to the limitations described below. y If a specified routine uses a stack, the stack must always be the user stack. To terminate the processing of a specified routine, write a return subroutine instruction. y Ensure that a round of processing by a specified routine is complete within 100 ms. If, for example, the clock is turned off and left inactive within a specified routine, the emulator may become unable to control program execution. y The values stored in the registers at the time a specified routine starts running are undefined. Ensure that each specified routine initializes the register values. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 84 of 137 E1/E20 Emulator 5. Debugging Functions 5.16 Simple stack overflow detection function Setting the size of the stack too small in software development raises the possibility of a program going out of control or malfunctioning. If the stack exceeds the RAM area when the register is saved, the R8C E1/E20 Emulator Debugger displays a stack overflow message, “The stack has exceeded the address range of the RAM area” in the [Output] window. [*1] When this error occurs, perform a reset from the emulator debugger. Note: [*1] A stack overflow is detected only when the register is saved (when the ISP or USP address is lower than 400h). A stack overflow cannot be detected if the register is restored exceeding the RAM area. A stack overflow is detected normally if the lower limit of the stack range is located within 4 bytes from 400h, which is the start address of the internal RAM of the MCU (equivalent to 003FC - 003FFh). 5.17 Online help The online help describes the usage of each function or command syntax input from the command line window. Select [Emulator Help] from the [Help] menu to view the emulator help. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 85 of 137 E1/E20 Emulator 6. Tutorial 6.Tutorial 6.1 Introduction A tutorial program for the E1 and E20 emulators is provided as a means of presenting the emulator’s main features to you. The tutorial is described in this section. This section describes the main features of the E1 and E20 emulators by using a tutorial program. The tutorial program was written in the C language, and sorts random data (10 items) into ascending and descending order. Processing by the tutorial program is as follows. The main function generates random data to be sorted. The sort function sorts the generated random data in ascending order. The change function then sorts the data in descending order. The tutorial program is designed to help users to understand how to use the functions of the emulator and emulator debugger. When developing a user system or user program, refer to the user’s manual for the target MCU. Notes: [*1] If the tutorial program is recompiled, the addresses in the recompiled program may not be the same as those described in this section. [*2] The file tutorial.c contains source code for the tutorial program. The file Tutorial.x30 is a compiled load module in the IEEE695 format. 6.2 Starting the High-performance Embedded Workshop Open a workspace by following the procedure described in “4.9 Procedure for launching the E1/E20 emulator debugger” on page 29. Specify the directory given below. (Drive where the OS is installed)\Workspace\Tutorial\E1E20\R8C\Tutorial Specify the file shown below. Figure 6.1 [Open Workspace] Dialog Box 6.3 Connecting the emulator On booting up the emulator, a dialog box for setting up the debugger is displayed. Make initial settings of the debugger in this dialog box. When you have finished setting up the debugger, you are ready to start debugging. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 86 of 137 E1/E20 Emulator 6. Tutorial 6.4 Downloading the tutorial program 6.4.1 Downloading the tutorial program Download the object program you want to debug. Note, however, that the address where the program will be downloaded depends on the MCU in use. Accordingly, strings shown in the screen shots should be altered to those for the MCU in use. Right-click on the [Tutorial.x30] under [Download modules] and choose [Download] from the popup menu. Figure 6.2 Downloading the Tutorial Program R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 87 of 137 E1/E20 Emulator 6. Tutorial 6.4.2 Displaying the source program In the High-performance Embedded Workshop you can debug programs at the source level. Double-click on the C source file [Tutorial.c] under [C source file]. Figure 6.3 [Editor] Window (Displaying the Source Program) If necessary, you can change the font and size to make the text more easily readable. For details, refer to the Highperformance Embedded Workshop User’s Manual. The [Editor] window initially shows the beginning of the program. Use the scroll bar to view other parts of the program. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 88 of 137 E1/E20 Emulator 6. Tutorial 6.5 Setting S/W breakpoints Setting of S/W breakpoints is one simple debugging facility. S/W breakpoints are easy to set in the [Editor] window. For example, you can set a S/W breakpoint at the line where the sort function is called. Double-click in the row of the [S/W Breakpoints] column which corresponds to the source line containing the call of the sort function. The source line that includes the sort function will be marked with a red circle, indicating that a S/W breakpoint has been set there. Figure 6.4 [Editor] Window (Setting a S/W Breakpoint) R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 89 of 137 E1/E20 Emulator 6. Tutorial 6.6 Executing the program The following describes how to run the program. 6.6.1 Resetting the CPU To reset the CPU, choose [Reset CPU] from the [Debug] menu or click on the [Reset CPU] toolbar button ( ). 6.6.2 Executing the program To execute the program, choose [Go] from the [Debug] menu or click on the [Go] toolbar button ( execution is started, “Running” is displayed on the status bar. ). When the program The program will be executed continuously until a breakpoint is reached. An arrow will be displayed in the [S/W Breakpoints] column to indicate the position where the program stopped. Figure 6.5 [Editor] Window (Break) Note: When the source file is displayed after a break, a path of the source file may be inquired. The location of the source file is as follows: :\Workspace\Tutorial\E1E20\R8C\Tutorial\Source The [Status] window permits you to check the cause of the last break to have occurred. Choose [View -> CPU -> Status] or click on the [View Status] toolbar button ( ). When the [Status] window is displayed, open the [Platform] sheet and check the cause of the break. Figure 6.6 [Status] Window R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 90 of 137 E1/E20 Emulator 6. Tutorial 6.7 Checking breakpoints Use the [Breakpoints] dialog box to check all S/W breakpoints that have been set. 6.7.1 Checking breakpoints Choose [Edit -> Source Breakpoints] to open the [Breakpoints] dialog box. Figure 6.7 [Breakpoints] Dialog Box Use this dialog box to remove a breakpoint or enable or disable a breakpoint. Note: [*1] The [Breakpoints] dialog box cannot be opened if no S/W breakpoints have been set. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 91 of 137 E1/E20 Emulator 6. Tutorial 6.8 Altering register contents Choose [View -> CPU -> Registers] or click on the [Registers] toolbar button ( ). The [Register] window shown below will be displayed. (1) Switching between register banks Initially, the register data of Bank1 is displayed. Right-click on the [Register] window to open the popup menu. You can switch the register bank between the Bank 0 and the Bank 1. Figure 6.8 [Register] Window (2) Altering the contents of registers The contents of any register can be altered. Double-click on the line for the register you want to alter. The dialog box shown below is displayed, allowing you to enter the new value for the register. Figure 6.9 [Set Value] Dialog Box (PC) Note: [*1] The values of the CPU registers can be set in the [Register] window and by script commands. Note that the values set are reflected immediately before execution of the user program. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 92 of 137 E1/E20 Emulator 6. Tutorial 6.9 Referring to symbols The [Labels] window permits you to view the symbolic information in a module. Choose [View -> Symbol -> Labels] or click on the [Labels] toolbar button ( ). The [Labels] window shown below will be displayed. Use this window to look at the symbolic information a module includes. Figure 6.10 [Label] Window R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 93 of 137 E1/E20 Emulator 6. Tutorial 6.10 Checking memory contents After you have specified a label name, you can use the [Memory] window to check the contents of memory where that label is registered. For example, you can check the contents of memory corresponding to _main in word size, as shown below. Choose [View -> CPU -> Memory…] or click on the [Memory] toolbar button ( box. Enter “_main” in the edit box of the [Display Address] dialog box. ) to open the [Display Address] dialog Figure 6.11 [Display Address] Dialog Box Click on the [OK] button. The [Memory] window will be displayed, showing a specified memory area. Figure 6.12 [Memory] Window R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 94 of 137 E1/E20 Emulator 6. Tutorial 6.11 Referring to variables When stepping through a program, you can watch that the values of variables used in the user program are changed. For example, by following the procedure described below, you can look at the long-type array ‘a’ that is declared at the beginning of the program. Click on the left-hand side of the line containing the array ‘a’ in the [Editor] window to place the cursor there. Right-click and select [Instant Watch]. The dialog box shown below will be displayed. Figure 6.13 [Instant Watch] Dialog Box Click on the [Add] button to add the variable to the [Watch] window. Figure 6.14 [Watch] Window (Array Display) Alternatively, you can specify a variable name to be added to the [Watch] window. Right-click in the [Watch] window and choose [Add Watch] from the popup menu. The dialog box shown below will be displayed. Figure 6.15 [Add Watch] Dialog Box R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 95 of 137 E1/E20 Emulator 6. Tutorial Enter variable ‘i’ in the [Variable or expression] edit box and click on the [OK] button. The int-type variable ‘i’ will be displayed in the [Watch] window. Figure 6.16 [Watch] Window (Showing a Variable) Click on the “+” mark shown to the left of the array ‘a’ in the [Watch] window. You can now look at the individual elements of the array ‘a.’ Figure 6.17 [Watch] Window (Showing Array Elements) R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 96 of 137 E1/E20 Emulator 6. Tutorial 6.12 Showing local variables By using the [Local] window, you can view the local variables included in a function. As an example, let’s check the local variables of the tutorial function. Four local variables are declared in this function: ‘a,’ ‘j,’ ‘i’ and ‘p_sam.’ Choose [View -> Symbol -> Local] or click on the [Locals] toolbar button ( ) to display the [Locals] window. The [Locals] window shows the values of local variables in the function indicated by the current value of the program counter (PC). If no variables exist in the function, no information is displayed in the [Locals] window. Figure 6.18 [Locals] Window Click on the “+” mark shown to the left of array a in the [Locals] window to display the elements of class instance ‘a’. Confirm that the random data are being sorted into descending order by inspecting the elements of class instance ‘a’ before and after execution of the sort function. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 97 of 137 E1/E20 Emulator 6. Tutorial 6.13 Stepping through a program The High-performance Embedded Workshop provides various step commands that will prove useful in debugging programs. Table 6.1 Step Options Command Description Step In Executes a program one statement at a time (including statements within functions). Step Over Executes a program one statement at a time by ‘stepping over’ function calls, if there are any. Step Out After exiting a function, stops at the next statement of a program that called the function. Step... Single-step a program a specified number of times at a specified speed. 6.13.1 Executing [Step In] [Step In] ‘steps in’ to a called function and stops at the first statement of the function. To enter the sort function, choose [Step In] from the [Debug] menu or click on the [Step In] toolbar button ( ). The highlight in the [Editor] window moves to the first statement of the sort function. Figure 6.19 [Editor] Window (Step In) R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 98 of 137 E1/E20 Emulator 6. Tutorial 6.13.2 Executing [Step Out] [Step Out] steps out of the called function and stops at the next statement of the calling statement in the main function. To exit from the sort function, choose [Step Out] from the [Debug] menu or click on the [Step Out] toolbar button ( ). The data of the variable ‘a’ displayed in the [Watch] window will have been sorted into ascending order. Figure 6.20 [Editor] Window (Step Out) 6.13.3 Executing [Step Over] [Step Over] executes the whole of a function call as one step and then stops at the next statement of the main program. To execute all statements in the change function at once, choose [Step Over] from the [Debug] menu or click on the [Step Over] toolbar button ( ). The data of the variable ‘a’ displayed in the [Watch] window will have been sorted into descending order. Figure 6.21 [Editor] Window (Step Over) R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 99 of 137 E1/E20 Emulator 6. Tutorial 6.14 Forcibly breaking program execution The High-performance Embedded Workshop permits you to forcibly break program execution. Clear all breakpoints. To execute the rest of the tutorial function, choose [Go] from the [Debug] menu or click the on [Go] toolbar button ( ). Since the program execution is now in an endless loop, choose [Stop Program] from the [Debug] menu or click on the [Halt] toolbar button ( ). R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 100 of 137 E1/E20 Emulator 6. Tutorial 6.15 On-chip break facility The on-chip break facility is available if it is supported by the MCU. An on-chip break causes the program to stop when it executes the instruction at a specified address (instruction fetch) or reads from or writes to a specified memory location (data access). 6.15.1 Stopping a program when it executes the instruction at a specified address (pre-PC break) It’s easy to set an instruction-fetch event as an on-chip breakpoint in the [Editor] window. For example, you can set an instruction-fetch event where the sort function is called. Double-click in the row of the [On-Chip Breakpoint] column which corresponds to the source line containing the call of the sort function. The source line that includes the sort function will be marked with z, indicating that an on-chip breakpoint that will cause a program to stop when it fetches an instruction has been set there. Figure 6.22 [Editor] Window (Setting an On-Chip Breakpoint) R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 101 of 137 E1/E20 Emulator 6. Tutorial 6.15.2 Stopping a program when It accesses memory To make a program stop when it reads or writes the value of a global variable, follow the procedure below. Choose [View -> Event -> On-chip Event] to open the [On-Chip Event] dialog box. Select the [Event] tab of the [On-Chip Event] dialog box. Select a global variable in the [Editor] window, and drag-and-drop the selected variable into the [Event A] list box in the [Event] tab so that the program will stop when it reads or writes the value of that variable. Select [Event A] from the [Break] drop-down list box in the [Break Condition] group box, and click on the [Apply] button. The program will stop running when it reads or writes the value of the global variable you have set. Figure 6.23 [On-Chip Event] Dialog Box Note: [*1] Only global variables of 1 or 2 bytes in size can be registered. Local variables cannot be set as on-chip break conditions. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 102 of 137 E1/E20 Emulator 6. Tutorial 6.16 Tracing facility The E1 and E20 emulators allow you to use the tracing facility which uses the trace buffer in the MCU. The R8C E1/E20 Emulator Debugger can display the branch or data access information. The contents of the displayed information and the number of cycles that can be acquired vary with the MCU. The following is an example of settings. Choose [View -> Code -> Trace] or click on the [Trace] toolbar button ( The [Trace] window will be displayed. ). Figure 6.24 [Trace] Window The following section gives an outline of the tracing facility and how to set up the facility. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 103 of 137 E1/E20 Emulator 6. Tutorial 6.16.1 Showing the information acquired in tracing Trace information from when the trace start condition is encountered until when the trace stop condition is encountered is acquired. Here, let’s take the following conditions as an example. Trace start condition: when user program execution starts Trace stop condition: when user program execution stops (1) Choose [View -> Event -> On-Chip Event] or click on the [On-Chip Event] button ( ). (2) Check the following options are selected for the trace condition, and click the [Close] button. Type: Branch Trace Start: Go Stop: Break If you have changed any settings in the [On-Chip Event] dialog box, click the [Apply] button first, then the [Close] button. Figure 6.25 [On-Chip Event] Dialog Box (3) Set a S/W breakpoint on the line of the tutorial function: p_sam->s0=a[0];”. Figure 6.26 [Editor] Window (Setting a S/W Breakpoint in the Tutorial Function) R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 104 of 137 E1/E20 Emulator 6. Tutorial (4) Choose [Reset Go] from the [Debug] menu. Processing will be halted by the break, and the trace information acquired prior to the break will be displayed in the [Trace] window. Figure 6.27 [Trace] Window R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 105 of 137 E1/E20 Emulator 6. Tutorial 6.17 Stack trace facility Stack information can be used to find out which function called the function corresponding to the current PC value. [*1] Set a S/W breakpoint in any line of the sort function by double-clicking on the corresponding row in the [S/W Breakpoints] column. Choose [Reset Go] from the [Debug] menu. Figure 6.28 [Editor] Window (Setting a S/W Breakpoint) Note: [*1] This function can be used only when the load module that has the IEEE695-type debugging information is loaded. After the break, choose [View -> Code -> Stack Trace] to open the [Stack Trace] window. Figure 6.29 [Stack Trace] Window You will see that the current PC value is within the sort function, and that the sort function was called from the tutorial function. Clear the S/W breakpoint that you set on a line of the sort function by again double-clicking on the corresponding row in the [S/W Breakpoints] column. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 106 of 137 E1/E20 Emulator 6. Tutorial 6.18 What next? In this tutorial, we have introduced to you several features of the E1 and E20 emulators and usage of the High-performance Embedded Workshop. The emulation facilities of the E1 and E20 emulators provide for advanced debugging. You can apply them to precisely distinguish the causes of problems in hardware and software and, once these have been identified, to effectively examine the problems. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 107 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7.1 MCU resources used by the emulator 7.1.1 Program area for the emulator Table 7.1 to Table 7.16 list the program area for the emulator. Do not change this area, otherwise the emulator will not control the MCU. In this case, disconnect the debugger and then reconnect it. Table 7.1 Program Area for the Emulator (R8C/3xC) Group Part No. [Initial Settings] dialog box MCU group R8C/32C Device Program ROM R5F213x1C 4 KB R5F21322C R5F213x2C 8 KB - R5F21324C R5F213x4C 16 KB - R5F213x1C 4 KB - R5F213x2C 8 KB - R5F213x4C 16 KB - R5F21332C R5F21334C R8C/35C 24 KB - 32 KB 2 KB of the ROM area [*1] R5F21344C R5F213x4C 16 KB - R5F21345C R5F213x5C 24 KB - R5F21346C R5F213x6C 32 KB 2 KB of the ROM area [*1] R5F21354C R5F213x4C 16 KB - R5F21355C R5F213x5C 24 KB - R5F21356C R5F213x6C 32 KB 2 KB of the ROM area [*1] R5F213x7C 48 KB - R5F213x8C 64 KB - R5F2135AC R5F213xAC 96 KB - R5F2135CC R5F213xCC 128 KB R5F21364C R5F213x4C 16 KB R5F21365C R5F213x5C 24 KB R5F21366C R5F213x6C 32 KB R5F21367C R5F213x7C 48 KB R5F21357C 2 KB of the ROM area [*1] 1 KB (4 blocks) FFE4h - FFE7h, FFE8h - FFEBh, FFECh - FFEFh, FFF4h - FFF7h, FFFCh - FFFEh - R5F213x8C 64 KB - 96 KB - R5F213xCC 128 KB 2 KB of the ROM area [*1] R5F213x6C 32 KB - R5F21387C R5F213x7C 48 KB - R5F21388C R5F213x8C 64 KB - R5F2138AC R5F213xAC 96 KB - R5F2138CC R5F213xCC 128 KB 2 KB of the ROM area [*1] R5F213G1C R5F213x1C 4 KB - R5F213G2C R5F213x2C 8 KB - R5F213G4C R5F213x4C 16 KB - R5F213x5C 24 KB - R5F213x6C 32 KB 2 KB of the ROM area [*1] R5F2136CC R5F21386C R5F213G5C R5F213G6C R8C/3xC (64 pins or more) Group R8C/3xC (48 pins or less) Group R5F213x2C 8 KB - R5F213J4C R5F213x4C 16 KB - R5F213J5C R5F213x5C 24 KB - R5F213J6C R5F213x6C 32 KB 2 KB of the ROM area [*1] R5F213J2C R8C/3JC R8C/3xC (52 pin) Group R5F213xAC R5F21368C R8C/3GC - R5F213x6C R5F2136AC R8C/38C ROM Area R5F213x5C R5F21358C R8C/36C Vector Area R5F21336C R5F21335C R8C/34C R8C/3xC (48 pins or less) Group Data Flash Program Area for the Emulator R5F21321C R5F21331C R8C/33C Internal ROM Size Note: [*1] When starting the debugger, the [Configuration Properties] dialog box is displayed. Specify the area which will not be used by the user system. For details, see “4.13.1 [System] tab” on page 42. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 108 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator Table 7.2 Program Area for the Emulator (R8C/3xM) [Initial Settings] dialog box Group Part No. MCU group R8C/34M R8C/35M R5F213x2M - R5F21324M R5F213x4M 16 KB - R5F213x1M 4 KB - R5F21332M R8C/3xM R5F213x2M 8 KB - R5F21334M (48pins or less) R5F213x4M 16 KB - R5F21335M Group R5F213x5M 24 KB - R5F21336M R5F213x6M 32 KB 2 KB of the ROM area [*1] R5F21344M R5F213x4M 16 KB - R5F21345M R5F213x5M 24 KB - R5F21346M R5F213x6M 32 KB 2 KB of the ROM area [*1] R5F21354M R5F213x4M 16 KB - R5F21355M R5F213x5M 24 KB - R5F21356M R5F213x6M 32 KB 2 KB of the ROM area [*1] R5F213x7M 48 KB - R5F213x8M 64 KB - R5F213xAM 96 KB R5F2135CM R5F213xCM 128 KB R5F21364M R5F213x4M 16 KB 1 KB R5F21365M R5F213x5M 24 KB (4 blocks) R5F21366M R5F213x6M 32 KB R5F21367M R5F213x7M 48 KB R5F213x8M 64 KB R5F21357M R8C/3xM(52pin) Group R5F21368M R8C/3xM FFE4h - FFE7h, FFE8h - FFEBh, FFECh - FFEFh, FFF4h - FFF7h, FFFCh - FFFEh 2 KB of the ROM area [*1] - R5F2136AM (64pins or R5F213xAM 96 KB - R5F2136CM more) R5F213xCM 128 KB 2 KB of the ROM area [*1] R5F21386M Group R5F213x6M 32 KB - R5F213x7M 48 KB - R5F21388M R5F213x8C 64 KB - R5F2138AM R5F213xAM 96 KB - R5F2138CM R5F213xCM 128 KB 2 KB of the ROM area [*1] R5F213x2M 8 KB - R5F213x4M 16 KB - R5F213x5M 24 KB - R5F213G6M R5F213x6M 32 KB 2 KB of the ROM area [*1] R5F213J2M R5F213x2M 8 KB - R5F213x4M 16 KB - R5F213x5M 24 KB - R5F213x6M 32 KB 2 KB of the ROM area [*1] R5F213G2M R8C/3JM ROM Area R5F21322M R5F21387M R8C/3GM Vector Area - R5F2135AM R8C/38M Flash 8 KB R5F21358M R8C/36M Data ROM 4 KB R5F21331M R8C/33M Program Program Area for the Emulator R5F213x1M R5F21321M R8C/32M Device Internal ROM Size R5F213G4M R5F213G5M R5F213J4M R5F213J5M R8C/3xM (48pins or less) Group R8C/3xM (48pins or less) Group R5F213J6M Note: When starting the debugger, the [Configuration Properties] dialog box is displayed. Specify the area which will not be used by the user system. For details, see “4.13.1 [System] tab” on page 42. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 109 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator Table 7.3 Program Area for the Emulator (R8C/3xW) Group Part No. [Initial Settings] dialog box MCU group R8C/34W Program ROM R5F21346W R5F213x6W 32 KB R5F21347W R5F213x7W 48 KB R5F21348W R5F213x8W 64 KB R5F213xAW 96 KB Program Area for the Emulator Vector Area R8C/3xX, R5F213xCW 128 KB R5F21368W R8C/3xY, R5F213x8W 64 KB R5F2136AW R8C/3xZ Groups R5F213xAW 96 KB R5F213xCW 128 KB FFFCh - FFFEh, R5F21388W R5F213x8W 64 KB R5F2138AW R5F213xAW 96 KB R5F2138CW R5F213xCW 128 KB R8C/3xW, ROM Area - R5F2134CW R5F2136CW R8C/38W Data Flash - FFE7h - FFEBh, FFECh - FFEFh, FFF4h - FFF7h, R5F2134AW R8C/36W Internal ROM Size Device FFE4h 1 KB (4 blocks) FFE8h 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] Table 7.4 Program Area for the Emulator (R8C/3xX) [Initial Settings] dialog box Group MCU group R8C/34X R8C/38X Device Program ROM R5F21346X R5F213x6X 32 KB R5F21347X R5F213x7X 48 KB R5F21348X R5F213x8X 64 KB R5F213xAX 96 KB Program Area for the Emulator Data Flash Vector Area R5F2134CX R8C/3xX, R5F213xCX 128 KB R5F21368X R8C/3xY, R5F213x8X 64 KB R5F2136AX R8C/3xZ R5F213xAX 96 KB R5F2136CX Groups R5F213xCX 128 KB FFFCh - FFFEh R5F21388X R5F213x8X 64 KB R5F2138AX R5F213xAX 96 KB R5F2138CX R5F213xCX 128 KB R8C/3xW, ROM Area - - FFE7h, - FFEBh, FFECh - FFEFh, FFF4h - FFF7h, R5F2134AX R8C/36X Internal ROM Size Part No. FFE4h FFE8h - 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] Note: When starting the debugger, the [Configuration Properties] dialog box is displayed. Specify the area which will not be used by the user system. For details, see “4.13.1 [System] tab” on page 42. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 110 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator Table 7.5 Program Area for the Emulator (R8C/3xY) Group Part No. [Initial Settings] dialog box MCU group R8C/34Y Device Program ROM R5F21346Y R5F213x6Y 32 KB R5F21347Y R5F213x7Y 48 KB R5F21348Y R5F213x8Y 64 KB R8C/3xW, R5F213xAY 96 KB R5F2134CY R8C/3xX, R5F213xCY 128 KB R5F21368Y R8C/3xY, R5F213x8Y 64 KB R5F2136AY R8C/3xZ Groups R5F213xAY 96 KB R5F2134AY R8C/36Y R5F213xCY 128 KB R5F21388Y R5F213x8Y 64 KB R5F2138AY R5F213xAY 96 KB R5F2138CY R5F213xCY 128 KB R5F2136CY R8C/38Y Internal ROM Size Data Flash Program Area for the Emulator Vector Area ROM Area FFE4h - FFE7h, 1 KB (4 blocks) FFE8h - FFEBh, 2 KB of the ROM area [*1] FFECh - FFEFh, - FFF4h - FFF7h, FFFCh - FFFEh 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] Table 7.6 Program Area for the Emulator (R8C/3xZ) Group Part No. [Initial Settings] dialog box MCU group R8C/34Z R8C/36Z R8C/38Z Internal ROM Size Device Program ROM R5F21346Z R5F213x6Z 32 KB R5F21347Z R5F213x7Z 48 KB R5F21348Z R5F213x8Z 64 KB Program Area for the Emulator Data Flash Vector Area - R5F2134AZ R8C/3xW, R5F213xAZ 96 KB FFE4h - FFE7h, R5F2134CZ R8C/3xX, R5F213xCZ 128 KB FFE8h - FFEBh, R5F21368Z R8C/3xY, R5F213x8Z 64 KB R5F2136AZ R8C/3xZ R5F213xAZ 96 KB FFF4h - FFF7h, R5F2136CZ Groups R5F213xCZ 128 KB FFFCh - FFFEh R5F21388Z R5F213x8Z 64 KB R5F2138AZ R5F213xAZ 96 KB R5F2138CZ R5F213xCZ 128 KB Device - 2 KB of the ROM area [*1] FFECh - FFEFh, 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] Table 7.7 Program Area for the Emulator (R8C/3xGHPR) Group Part No. [Initial Settings] dialog box MCU group R8C/32G R8C/33G R8C/34P R8C/32H R8C/33H R8C/34R Device Internal ROM Size Program ROM Data Flash Program Area for the Emulator Vector Area ROM Area R5F21324G R5F213x4G 16 KB － R5F21326G R5F213x6G 32 KB 2 KB of the ROM area [*1] R5F21334G R5F213x4G 16 KB 1 KB R5F213x6G 32 KB (4 blocks) R5F213x4P 16 KB R5F21336G R5F21344P R5F21346P R8C/3xG, R8C/3xH, － FFE4h - FFE7h, FFE8h - FFEBh, 2 KB of the ROM area [*1] － R5F213x6P 32 KB R5F213x4H 16 KB R5F213x6H 32 KB R5F21334H R5F213x4H 16 KB R5F21336H R5F213x6H 32 KB R5F21344R R5F213x4R 16 KB － R5F21346R R5F213x6R 32 KB 2 KB of the ROM area [*1] R5F21324H R5F21326H R8C/3xP, R8C/3xR Groups FFECh - FFEFh, FFF4h - FFF7h, FFFCh - FFFEh - 2 KB of the ROM area [*1] － 2 KB of the ROM area [*1] － 2 KB of the ROM area [*1] Note: [*1] When starting the debugger, the [Configuration Properties] dialog box is displayed. Specify the area which will not be used by the user system. For details, see “4.13.1 [System] tab” on page 42. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 111 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator Table 7.8 Program Area for the Emulator (R8C/3xT) Group Part No. [Initial Settings] dialog box MCU group R5F21334T R8C/33T R8C/3JT R5F21335T Internal ROM Size Device Program ROM R5F213x4T 16 KB Data Flash Program Area for the Emulator Vector Area FFE4h - FFE7h, R5F213x5T 24 KB R5F21336T R8C/3xT R5F213x6T 32 KB 1 KB R5F213J4T Group R5F213x4T 16 KB (4 blocks) R5F213J5T R5F213x5T 24 KB R5F213J6T R5F213x6T 32 KB FFE8h - FFEBh, ROM Area 2 KB of the ROM area [*1] FFECh - FFEFh, FFF4h - FFF7h, FFFCh - FFFEh 2 KB of the ROM area [*1] Table 7.9 Program Area for the Emulator (R8C/3NT) [Initial Settings] dialog box Group Part No. MCU group R8C/3NT Device Internal ROM Size Program R5F213N7T R5F213N7T ROM 48 KB R5F213N8T R5F213N8T 64 KB R5F213NAT 96 KB R5F213NCT 128 KB R5F213NAT R8C/3NT Group R5F213NCT Data Flash 1 KB (4 blocks) Program Area for the Emulator Vector Area ROM Area FFE4h - FFE7h, - FFE8h - FFEBh, - FFECh - FFEFh, - FFF4h - FFF7h, FFFCh - FFFEh 2 KB of the ROM area [*1] Table 7.10 Program Area for the Emulator (R8C/3MQ) Group Part No. [Initial Settings] dialog box MCU group R5F213M6Q R5F213M7Q R8C/3MQ R5F213M8Q R8C/3MQ Group R5F213MAQ Device Program ROM R5F213M6Q 32 KB R5F213M7Q 48 KB R5F213M8Q 64 KB R5F213MAQ R5F213MCQ R5F213MCQ Internal ROM Size Data Flash Program Area for the Emulator Vector Area FFE4h - FFE7h, ROM Area - FFE8h - FFEBh, - FFECh - FFEFh, - 96 KB FFF4h - FFF7h, - 128 KB FFFCh - FFFEh 1 KB (4 blocks) 2 KB of the ROM area [*1] 112 KB [*2] Table 7.11 Program Area for the Emulator (R8C/3xUK) Group Part No. [Initial Settings] dialog box MCU group R8C/34U R8C/34K R8C/3MU R8C/3MK R5F21346U R5F21348U R5F21348K R5F2134CK R5F213M6U R5F213M8U R5F213M8K R5F213MCK R8C/3xUK Group Device R5F213x6U R5F213x8U R5F213x8K R5F213xCK R5F213x6U R5F213x8U R5F213x8K R5F213xCK Internal ROM Size Program ROM 32 KB 64 KB 64 KB 128 KB 32 KB 64 KB 64 KB 128 KB Data Flash Program Area for the Emulator Vector Area FFE4h - FFE7h, 1 KB (4 blocks) FFE8h - FFEBh, FFECh - FFEFh, FFF4h - FFF7h, FFFCh - FFFEh ROM Area 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] Note: [*1] When starting the debugger, the [Configuration Properties] dialog box is displayed. Specify the area which will not be used by the user system. For details, see “4.13.1 [System] tab” on page 42. [*2] The program ROM for the R5F213MCQ has been changed from 128 KB to 112 KB. For details, refer to our technical notification, which can be accessed from the following URL. http://documentation.renesas.com/doc/products/mpumcu/doc/r8c/tnr8ca028ae.pdf The debugger does not have the choice for 112 KB program ROM. When using the R5F213MCQ, follow the instructions in "3 Usage note for the development tool" in the technical notification. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 112 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator Table 7.12 Program Area for the Emulator (R8C/L3xC) Group Part No. [Initial Settings] dialog box MCU group R8C/L35C R8C/L36C R8C/L38C R8C/L3AC Device Internal ROM Size Program ROM R5F2L357C R5F2L3x7C 48 KB R5F2L358C R5F2L3x8C 64 KB R5F2L35AC R5F2L3xAC 96 KB R5F2L35CC R5F2L3xCC 128 KB R5F2L367C R5F2L3x7C 48 KB R5F2L368C R5F2L3x8C 64 KB R5F2L36AC Program Area for the Emulator Data Flash 2 KB of the ROM area [*1] FFE4h - FFE7h, R5F2L3xAC 96 KB R8C/L3xC R5F2L3xCC 128 KB 1 KB R5F2L387C Group R5F2L3x7C 48 KB (4 blocks) R5F2L388C R5F2L3x8C 64 KB R5F2L38AC R5F2L3xAC 96 KB R5F2L38CC R5F2L3xCC 128 KB R5F2L3A7C R5F2L3x7C 48 KB R5F2L3A8C R5F2L3x8C 64 KB R5F2L3AAC R5F2L3xAC 96 KB R5F2L3xCC 128 KB ROM Area - R5F2L36CC R5F2L3ACC Vector Area FFE8h - FFEBh, FFECh - FFEFh, 2 KB of the ROM area [*1] FFF4h - FFF7h, FFFCh - FFFEh 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] Table 7.13 Program Area for the Emulator (R8C/L3xM) Group [Initial Settings] dialog box Part No. MCU group R5F2L357M R8C/L35M R8C/L36M R8C/L38M R8C/L3AM Device R5F2L3x7M Internal ROM Size Program ROM Vector Area ROM Area 48 KB R5F2L358M R5F2L3x8M 64 KB R5F2L35AM R5F2L3xAM 96 KB R5F2L35CM R5F2L3xCM 128 KB R5F2L367M R5F2L3x7M 48 KB R5F2L368M R5F2L3x8M 64 KB R5F2L36AM Data Flash Program Area for the Emulator - 2 KB of the ROM area [*1] FFE4h - FFE7h, R5F2L3xAM 96 KB R5F2L36CM R8C/L3xM R5F2L3xCM 128 KB 1 KB R5F2L387M Group R5F2L3x7M 48 KB (4 blocks) R5F2L388M R5F2L3x8M 64 KB R5F2L38AM R5F2L3xAM 96 KB R5F2L38CM R5F2L3xCM 128 KB R5F2L3A7M R5F2L3x7M 48 KB R5F2L3A8M R5F2L3x8M 64 KB R5F2L3AAM R5F2L3xAM 96 KB R5F2L3ACM R5F2L3xCM 128 KB FFE8h - FFEBh, FFECh - FFEFh, 2 KB of the ROM area [*1] FFF4h - FFF7h, FFFCh - FFFEh 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] Note: [*1] When starting the debugger, the [Configuration Properties] dialog box is displayed. Specify the area which will not be used by the user system. For details, see “4.13.1 [System] tab” on page 42. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 113 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator Table 7.14 Program Area for the Emulator (R8C/LA3A, LA5A) Group Part No. [Initial Settings] dialog box MCU group R8C/LA3A Program ROM R5F2LA32A R5F2LAx2A 8 KB R5F2LA34A R5F2LAx4A 16 KB R5F2LA36A R5F2LA38A R5F2LA52A R8C/LA5A Device Internal ROM Size R8C/LA3A, R8C/LA5A 32 KB 64 KB 1 KB (2 blocks) 8 KB R5F2LAx4A 16 KB R5F2LA56A R5F2LAx6A 32 KB R5F2LA58A R5F2LAx8A 64 KB ROM Area - R5F2LAx6A R5F2LAx2A Vector Area FFE4h - FFE7h, R5F2LAx8A R5F2LA54A Groups Data Flash Program Area for the Emulator FFE8h - FFEBh, FFECh - FFEFh, 2 KB of the ROM area [*1] FFF4h - FFF7h, FFFCh - FFFEh 2 KB of the ROM area [*1] Table 7.15 Program Area for the Emulator (R8C/LA6A, LA8A) Group Part No. [Initial Settings] dialog box MCU group R8C/LA6A Program ROM Data Flash R5F2LA64A R5F2LAx4A 16 KB R5F2LA66A R5F2LAx6A 32 KB 1 KB R5F2LA67A R5F2LAx7A 48 KB (2 blocks) R5F2LA68A R5F2LAx8A 64 KB R5F2LA6AA 2 KB R5F2LAxAA 96 KB R5F2LAxCA 128 KB R5F2LAx4A 16 KB R5F2LA86A R5F2LAx6A 32 KB 1 KB R5F2LA87A R5F2LAx7A 48 KB (2 blocks) R5F2LA6CA R5F2LA84A R8C/LA8A Device Internal ROM Size R8C/LA6A, R8C/LA8A Groups (2 blocks) Program Area for the Emulator Vector Area ROM Area - FFE4h - FFE7h, FFE8h - FFEBh, FFECh - FFEFh, 2 KB of the ROM area [*1] 2 KB of the ROM area [*1] FFF4h - FFF7h, FFFCh - FFFEh 2 KB of the ROM area [*1] R5F2LA88A R5F2LAx8A 64 KB R5F2LA8AA R5F2LAxAA 96 KB 2 KB - 128 KB (2 blocks) 2 KB of the ROM area [*1] R5F2LA8CA R5F2LAxCA Table 7.16 Program Area for the Emulator (R8C/LAPS) Group Part No. [Initial Settings] dialog box MCU group R5F2LAP6S Program ROM Data Flash Program Area for the Emulator Vector Area R5F2LAx6S 32 KB R5F2LAx7S 48 KB R5F2LAx8S 64 KB R5F2LAPAS R5F2LAxAS 96 KB FFF4h - FFF7h, R5F2LAPCS R5F2LAxCS 128 KB FFFCh - FFFEh R5F2LAP7S R8C/LAPS Device Internal ROM Size R5F2LAP8S R8C/LAPS Group ROM Area FFE4h - FFE7h, 2 KB (2 blocks) FFE8h - FFEBh, FFECh - FFEFh, - 2 KB of the ROM area [*1] Note: [*1] When starting the debugger, the [Configuration Properties] dialog box is displayed. Specify the area which will not be used by the user system. For details, see “4.13.1 [System] tab” on page 42. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 114 of 137 E1/E20 Emulator 7.1.2 7. Notes on Using the E1 or E20 Emulator Pins used by the E1 or E20 emulator The emulator controls the MCUs by using the following pins depending on the usage. y RESET# pin and MODE pin 7.1.3 Interrupts (unusable) The BRK instruction interrupt, address match interrupt, single-step interrupt and address break interrupt are used by the E1/E20 emulator program. Therefore, make sure the user program does not use any of these interrupts. The emulator changes these interrupt vector values to the values to be used by the emulator. No problems occur if the interrupt vector values are written in the user program. These vector addresses cannot be rewritten in the [Memory] window. 7.1.4 Stack area used by the E1 or E20 emulator The emulator uses up to 8 bytes of the stack pointer (ISP) during a user program break. Therefore, set aside 8 bytes for the stack area. 7.1.5 SFRs used by the E1/E20 emulator program The SFRs listed in Table 7.17 are used by the E1/E20 emulator program as well as the user program. y Do not change the value in the [Memory] window, etc., by other than the user program. If register contents are referred to, a value that has been set in the E1/E20 emulator program will be read out. Table 7.17 SFRs Used by the E1/E20 Emulator Program (1) Address Register Symbol Bit 000Ah Protect register PRCR Bit 0 0023h High-speed on-chip oscillator control register 0 FRA0 Bit 0 [*1] 0080h DTC activation control register DTCTL Bit 0 [*2] The SFRs listed in Table 7. 18 are used by the E1/E20 emulator program, not the user program. Do not change the values, otherwise the E1 or E20 emulator cannot control the MCU. Table 7. 18 SFRs Used by the E1/E20 Emulator Program (2) Address Register 0004h Processor mode register 0 Address match interrupt register 0 Address match interrupt enable register 0 Address match interrupt register 1 Address match interrupt enable register 1 01C0h – 01C2h 01C3h 01C4h – 01C6h 01C7h Symbol PM0 RMAD0 AIER0 RMAD1 AIER1 Bit Bit 0 [*3] All bits All bits All bits All bits Notes: [*1] When debugging with the E1 or E20 emulator, the high-speed on-chip oscillator does not stop although the options for high-speed on-chip oscillator enable bit are available and FRA00 can be set to “high-speed on-chip oscillator off”. To check the functions of low power consumption etc. with high-speed on-chip oscillator off, make the evaluation with the final products or system manufactured by you in which only the user program is written to the MCU and the emulator is disconnected. The functions can also be checked by writing only the user program to the MCU, ending the debugger, then executing the user program. To write only the user program to the MCU, select [writing the on-chip flash memory mode] in the [Initial Settings] dialog box displayed when starting the debugger. If the high-speed on-chip oscillator frequency or the frequency control register needs to be changed, be sure to do that change in the user program. If such changes are made in the [Memory] window, etc., the E1 or E20 emulator will become uncontrollable. [*2] Not applicable for the R8C/LA8A, R8C/LA6A, R8C/LA5A, R8C/LA3A and R8C/LAPS. [*3] Only applicable for the R8C/L3xC and R8C/L3xM. The bit value is always “1” when the register is used by the E1 or E20 emulator. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 115 of 137 E1/E20 Emulator 7.1.6 7. Notes on Using the E1 or E20 Emulator Option function select area The E1 or E20 emulator sets each of bit 0 and bit 7 of the option function select register (OFS: 0FFFFh) to 1b. Although these addresses can be rewritten and the changed values can be referred to in the [Memory] window, etc., the changed value for bit 0 is invalid. y b0: Watchdog timer start select bit y b7: Count source protection mode after reset select bit 1: Watchdog timer is stopped after reset. 1: Count source protect mode disabled after reset Also, the emulator sets the lower 4 bits of the option function select register 2 (OFS2: 0FFDBh) to 1111b. y b1, b0: Watchdog timer underflow period set bit y b3, b2: Watchdog timer refresh acknowledgement period set bit 11: 3FFFh 11: 100% Notes: [*1] During the user program halt, the E1/E20 emulator program refreshes the watchdog timer. Note that if the user program uses the watchdog timer, the watchdog timer will be refreshed by the E1/E20 emulator program during the user program halt, making the refresh timing differ from the actual operational timing. Also, note that the watchdog timer is not refreshed during the execution of the user program. [*2] Count source protection mode cannot be debugged with the E1 or E20 emulator. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 116 of 137 E1/E20 Emulator 7.1.7 7. Notes on Using the E1 or E20 Emulator Registers initialized by the E1 or E20 emulator When the system is launched, the emulator initializes the CPU registers as shown in Table 7. 19 Table 7. 19 E1/E20 Emulator Register Initial Values 7.1.8 Status Register Initial Value E1/E20 Emulator PC Reset vector value in the vector address table Activation R0 to R3 (bank 0, 1) 0000h A0, A1 (bank 0, 1) 0000h FB (bank 0, 1) 0000h INTB 00000h USP 0000h ISP 05FFh (differs from the specification of the MCU) SB 0000h FLG 0000h RAM initialization Note that the E1 or E20 emulator initializes part of the MCU’s internal RAM area (00400h-004FFh) with “00h” at startup. 7.1.9 MCU reserved area The addresses not defined in the MCU hardware manual are a reserved area. Do not change the content of the reserved area. If changed, the E1 or E20 emulator will not control the MCU. y The value of this area is undefined when referenced in the [Memory] window. y In this area, the [Memory] window’s search, compare and move functions do not work normally. 7.1.10 DTC during a user program halt (not applicable for the R8C/LAxA) When the user program halts, data transfer using DTC is prohibited. However, the DTC interrupt request itself does not stop. Therefore, the DTC interrupt request occurred during the user program halt will be executed when the user program is restarted. 7.1.11 Note on internal power low consumption Make sure that bit 0 of voltage detect register 2 (VCA2) for the E1 or E20 emulator is set to “0: Low consumption disabled”. If “1” is selected, the emulator will not control the MCU. 7.1.12 Note on debugging at less than 2.7V (not applicable for the R8C/LAxA) The minimum voltage for writing into or erasing the flash memory is 2.7V according to the specification of the MCU to be used. As flash rewrite occurs when the operations below are executed, if the supply voltage of the MCU is less than 2.7V, the emulator cannot be used: y Downloading the user program y Setting and canceling S/W breaks (Setting/canceling address match and on-chip breaks are available) y Rewriting the value of the flash memory in the [Memory] window y Connecting the emulator to the MCU at emulator debugger startup 7.1.13 Debugging the functions to reduce power consumption When debugging the low-current-consumption read mode, do not operate windows until the program stops at the breakpoint by setting the breakpoint at the line of the program which will be executed after the mode is cancelled. When debugging the function to stop the flash memory, do not operate windows until the program stops at the breakpoint by setting the breakpoint at the line of the program which will be executed after the function is cancelled. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 117 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7.2 Reset (1) Reset function The power-on reset and the voltage monitor 0 reset cannot be used. If either reset is executed, the E1 or E20 emulator becomes uncontrollable. Do not stop the user program while the reset pin remains in the “L” state. A timeout error will occur. (2) Reset vector address During a debug with the E1 or E20 emulator, the reset vector addresses are used by a program for the emulator. While the user program is halted, the values set in a downloaded program or the [Memory] window can be referenced. But, when the user program is being run, the values set by a program for the emulator are displayed. If a reset vector address value is set while the user program is halted, only the emulator’s internal cache is updated. (3) Behavior after a reset If the MCU is reset while the user program is being run, the E1/E20 emulator program is entered into temporarily before the user program restarts (see Table 7. 20). Therefore, there is a time lag until the user program starts after a reset. Also, note that the behavior is different between a hardware reset (RESET#) and other resets, as shown in the table below. [*1] Table 7. 20 Behavior when the MCU Is Reset during the Execution of the User Program and It Is Restarted Reset Behavior when the MCU is reset Hardware reset (1) A hardware reset (RESET#) is detected by the E1 or E20 emulator. (RESET#) (2) The emulator is reconnected to the MCU. (3) The MCU is reset and the E1/E20 emulator program is entered into. (4) The address jumps to the reset vector address which is retained in the emulator program. Watchdog timer reset or (1) The MCU is reset and the E1/E20 emulator program is entered into. S/W reset [*2] (2) The address jumps to the reset vector address which is retained in the emulator program. Notes: [*1] Address match interrupts can be set or deleted during the execution of the user program, but address match breaks that are set during the execution of the user program are initialized by a reset. [*2] If a watchdog timer reset or an S/W reset is made during the execution of the user program, address match breaks (Channel 0 to Channel 3) are disabled (no break occurs) because the SFRs are initialized. The channel numbers of address match breaks can be checked on the [Before PC Break] tab of the [On-Chip Event] dialog box. (4) Watchdog timer reset The watchdog timer continues counting even while the user program is halted, with its counts refreshed in a program for the emulator. Therefore, if an underflow or other abnormal condition occurs immediately after the user program breaks, causing the watchdog timer to be reset immediately before it is refreshed, the emulator may become uncontrollable. (5) Reset-related limitations Do not perform a hardware reset (RESET#) while the user program is halted. The E1 or E20 emulator will not control the MCU. Note that if a reset is asserted from the MCU pin while the user program is halted, the contents of the CPU registers are not initialized and their values as of the time the user program has stopped or those set in the CPU register window are prioritized. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 118 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator (6) Contentions If contention occurs between a reset (hardware reset (RESET#), watchdog timer reset, etc.) and operations by the E1 or E20 emulator (memory access in the [Memory] window, etc.), the emulator may run out of control. Error messages such as a timeout error are displayed. Also, a message box asking whether to issue a system reset or not is displayed. Clicking the [Yes] button initializes the emulator and stops the user program. Clicking the [No] button neither initializes the emulator nor stops the user program. After clicking either button, you can continue the debugging. Note: [*1] If the automatic memory update is enabled in the [Memory] or [Watch] window, do not perform a hardware reset to the MCU. Otherwise communications with the MCU will be lost and the E1 or E20 emulator will run out of control. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 119 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7.3 Internal ROM area (flash memory) 7.3.1 Changing the internal ROM area When changing the contents of the MCU’s internal ROM without downloading from the emulator debugger, only the E1 or E20 emulator’s internal cache is updated and the changed contents are reflected in the MCU immediately before the user program starts running. 7.3.2 Notes on debugging in CPU rewrite mode [*1] (1) Unrewritable area in CPU rewrite mode When debugging in CPU rewrite mode, do not rewrite CPU for the internal ROM area containing the following areas. If these areas are rewritten, the E1 or E20 emulator will not control the MCU. - Fixed interrupt vector area - Area containing the emulator program (debug monitor) for the E1 and E20 - Block 3 in program ROM (except for the R8C/LAxA and R8C/LAPS. See the table below.) [*2] MCUs Applicable areas 4 KB ROM version - 8 KB ROM version - 16 KB ROM version - 24 KB ROM version Block 3: 0A000h-0BFFFh 32 KB ROM version Block 3: 08000h-0BFFFh Remarks Only applicable for the 32 KB ROM versions of the R8C/36C, R8C/38C, R8C/36M, R8C/38M, R8C/34W, R8C/34X, R8C/34Y, R8C/34Z, 48 KB ROM version Block 3: 08000h-0BFFFh 64 KB ROM version Block 3: 08000h-0BFFFh 96 KB ROM version - 128 KB ROM version - R8C/3MQ, R8C/34U and R8C/3MU. (2) Operation in CPU rewrite mode - When debugging in the CPU rewrite mode, do not halt the user program while the CPU rewrite mode is enabled or while in the erase suspend state. And do not perform a step execution of the instruction which enables a CPU rewrite mode or enters an erase-suspend state. If halted, the E1 or E20 emulator may not control the MCU. In addition, disable the automatic update in the [Watch] window or fix the display in the [Memory] window before running the program so memory accesses do not occur during an execution. - To check the internal ROM area after rewriting the internal ROM in the CPU rewrite mode, halt the user program after disabling the CPU rewrite mode and refer to the [Memory] window, etc. If CPU rewrite can be executed for the data flash area, and erase process can be suspended, do not use S/W breaks. - When rewriting the flash memory in the program area, select the [Debugging the program re-writing the internal flash.] checkbox in the [Configuration Properties] dialog box which appears at debugger start up. [*3] Notes: [*1] When debugging a program in CPU rewrite mode, memory reference or modification functions can be used. However, do not use these functions in the following condition. • While write instruction is being executed to the register which requires continuous writing (ex. FMR13 bit) The MCU does not recognize the writing is continuously executed if the write instruction is interrupted by the memory reference or modification process. [*2] This is not applicable when you assign programs for the E1/E20 emulator to the data flash area. [*3] When [Debugging the program re-writing the internal flash.] is selected, do not rewrite the internal ROM area in the [Memory] window, etc. Also note that a S/W break cannot be used when [Debugging the program re-writing the internal flash.] is selected. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 120 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7.3.3 Note on rewriting flash memory by the E1 or E20 emulator (1) Do not reset nor execute debugging operations to the MCU while the internal ROM (flash memory) is being written by the E1 or E20 emulator. Flash memory rewrite is executed from when the [Flash memory writing ...] is displayed until when [Flash memory writing ... OK] is displayed in the [Output] window of the High-performance Embedded Workshop. If the MCU is reset or debugged when rewriting the flash memory, the user program or the E1/E20 emulator program may be disrupted. Flash memory rewrite occurs: - When downloading the user program - After setting S/W breaks in the internal ROM area and performing an operation for executing the user program - After canceling S/W breaks in the internal ROM area and performing an operation for executing the user program - After rewriting the value of the internal ROM area in the [Memory] window or from the command line and performing an operation for executing the user program 7.3.4 Flash memory during the user program execution While the user program is being run, the internal ROM area cannot be changed in other than the user program (in the memory window, etc.). 7.3.5 MCUs used for debugging When debugging, the Flash memory is frequently rewritten by the E1 or E20 emulator. Therefore, do not use an MCU that has been used for debugging in products. Also, as the E1/E20 emulator program is written to the MCU while debugging, do not save the contents of the MCU Flash memory which were used for debugging nor use them as the ROM data for products. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 121 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7.3.6 Flash memory ID code This MCU function prevents the Flash memory from being read out by anyone other than the user. The ID code written to the ID code area of the MCU (see Table 7. 21) must match the one entered for the [ID Code] box in the [ID Code verification] dialog (see Figure 7.1) displayed at emulator debugger startup, otherwise the debugger cannot be launched. Note that when the ID code is FFh, FFh, FFh, FFh, FFh, FFh, FFh, the ID code is regarded as undefined. In this case, the ID code is automatically authenticated and the [ID Code verification] dialog box is not displayed. The values written into the ID code area differs depending on the mode. y [Writing the on-chip flash memory mode] [*1]: Contents of the user program y [Debugging mode] [*2]: FFh, FFh, FFh, FFh, FFh, FFh, FFh (regardless of the contents of the downloaded user program) Table 7. 21 ID Code Storage Area Address Description FFDFh First byte of ID code FFE3h Second byte of ID code FFEBh Third byte of ID code FFEFh Fourth byte of ID code FFF3h Fifth byte of ID code FFF7h Sixth byte of ID code FFFBh Seventh byte of ID code Figure 7.1 [ID Code verification] Dialog Box Notes: [*1] Notes on [Writing the on-chip flash memory mode]: z When the ID code is specified by the -ID option of the lmc30, download the MOT file or HEX file. When the X30 file is downloaded, the ID code is not valid. z When downloading the X30 file, specify the ID code using an assembler directive command such as “.BYTE”. z The file to which the ID code specified by the assembler directive command “.ID” is output varies depending on the version of the assembler. For details, refer to the Assembler User’s Manual. [*2] If the ID code written to the ID code area of the MCU matches the one entered for the [ID Code] box in the [ID Code verification] dialog displayed at emulator debugger startup, the E1 or E20 emulator writes FFh, FFh, FFh, FFh, FFh, FFh, FFh to the ID code area. Therefore, the [ID Code verification] dialog will not be displayed the next time the debugger starts up. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 122 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7.4 Power supply (1) Consumption current When the E1 emulator does not supply power to the user system, it consumes the power voltage of the user system from several mA to more than 10 mA. This is because the user system power supply drives 74LVC125 and 74LVC8T245 to make the communication signal level match the user system power supply voltage. [*1] (2) Note on E1 emulator power supply [*1] When writing a program with the E1 emulator for mass production processes, the program requires reliability, so do not use the E1 emulator power supply function. Supply power separately to the user system according to the allowable voltage for MCU writing. Voltage supplied from the E1 emulator depends on the quality of the USB power supply of the host machine, and as such, precision is not guaranteed. Note: [*1] The E20 emulator does not support the power supply function. 7.5 Operation during a user program halt (1) Operation clock during a user program halt When the user program halts, the emulator changes the CPU clock to the internal high-speed on-chip oscillator clock to operate. However, the peripheral features operate with the clock specified by the user program. The clock frequency of the internal high-speed on-chip oscillator is determined by the operating supply voltage that was detected at emulator debugger startup. [*2] (2) Peripheral I/Os during a user program halt During a user program halt, the maskable interrupt request cannot be accepted, because the emulator disables interrupts. However, since peripheral I/Os continue to run, the interrupt request is accepted immediately after the user program execution is started. For example, a timer interrupt is not accepted although the timer continues to count when a user program is stopped by a break after the timer started. Note: [*2] The frequency is switched with a threshold of 2.7V. Therefore, if you are using the E1 or E20 emulator around a supply voltage of 2.7V, the clock frequency may change depending on the voltage level detected by the emulator. The voltage value detected by the emulator is displayed in the [Connecting…] dialog box which appears at emulator debugger startup or the [Status] window. 7.6 Memory access during user program execution The E1/E20 emulator and the MCU use the frequency of a high-speed on-chip oscillator as a communication clock. Therefore, accessing memory in the [Memory] window, etc. immediately after the change of high-speed on-chip oscillator frequency may not be performed normally. 7.7 Final evaluation of the program Before entering the mass-production phase, be sure to perform a final evaluation of the program singly, without the E1 or E20 emulator connected. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 123 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7.8 Debug functions 7.8.1 Step execution (1) Limitations during the step execution During stepped execution, S/W breaks and on-chip breaks are invalid. (2) Step out execution Stepping out of a function that uses a jump instruction (i.e. not a subroutine-return instruction) to return to the origin of the call is not possible. (3) Note on using automatic memory update When the automatic memory update is enabled in the [Memory] or [Watch] window, do not execute step out or multiplestep. Otherwise, it will take longer to update memory data and the operation will be delayed. (4) Exceptional step execution a) Software interrupt instruction Step execution cannot be performed in the internal processing of instructions (undefined, overflow, BRK and INT) which generate a software interrupt continuously in the program (see Figure 7.2). NOP NOP INT#3 Passes through if the STEP execution is carried out. NOP JMP MAIN INT_3: NOP Program should be stopped at this address. NOP NOP REIT Figure 7.2 Example of Software Interrupt Instruction b) INT instruction To debug the user program with the INT instruction, set a S/W break for the internal processing of the INT instruction and execute the program with the GO command (see Figure 7.3). NOP INT #3 NOP JMP MAIN Execute using GO command. INT_3: NOP NOP REIT Break Figure 7.3 Example of INT Instruction c) Other: Flag manipulating instructions The following instructions, when single-stepped, only manipulate a flag in the E1 or E20 emulator, with no MCU operations involved. Therefore, when these instructions are executed, be aware that the Start/Stop function does not work. LDC src, FLG STC FLG, dest LDINTB src R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 124 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7.8.2 Other debug functions (1) “Go to cursor” function The “Go to cursor” function is actualized using an address match break. When you execute the [Go To Cursor] command, all the S/W breaks and on-chip breaks you have set become invalid. (2) Debugging in stop mode or wait mode When debugging in stop mode or wait mode, do not operate windows until the program stops at the breakpoint by setting the breakpoint at the line of the program which will be executed after the stop mode or wait mode is cancelled. And do not perform a step execution of the instruction shifting to stop mode or wait mode. Also, if memory contents are referenced or changed during the stop mode or wait mode, the program—after exiting the stop or wait mode and accessing the MCU memory—restarts from the instruction next to the one by which it was placed into the stop or wait mode. If the program enters the stop or wait mode in the middle of a memory access, a reference or a change of memory contents may not be performed normally. Therefore, disable the automatic update in the [Memory] window or [Watch] window or fix the display in the [Memory] window before running the program, and do not make refresh operations during an execution so memory accesses do not occur during user program execution. When the program is forcibly stopped in stop mode or wait mode, these modes will be cancelled. (3) If the reset circuit of the user system has a watchdog timer, disable it when using the emulator. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 125 of 137 E1/E20 Emulator 7. Notes on Using the E1 or E20 Emulator 7.9 Notes on using the CAN module (applicable for the R8C/3xW and R8C/3xX only) 7.9.1 Notes on CAN module in operation (1) When using the CAN module [*1] and if BCLK (CPU clock) is used as the CAN clock source (fCAN), the CPU clock should be used at 4MHz or more. If the CPU clock is used at less than 4MHz in this case, a communication error may occur. (2) Do not activate the CAN module from the memory window, etc., except from the user program. (3) When using the CAN module [*1], do not shift into stop mode. Otherwise, a communication error may occur. (4) Note on S/W breakpoint If the MCU’s operation clock speed is low, setting or removing S/W breaks may take time. In this case, use on-chip breaks prior to the S/W break. 7.9.2 Operation during a user program halt (1) Operation clock during a user program halt When the user program halts, the operation clock differs depending on the status of the CAN module (status of the CAN sleep status flag). a) In CAN sleep mode (SLPST = 1) The emulator changes the CPU clock to the internal high-speed on-chip oscillator clock. However, the peripheral features operate with the clock specified by the user program. b) Not in CAN sleep mode (SLPST = 0) The clock specified by the user program is used as the operation clock. [*1] Note: [*1] The CAN module is recognized as being used in the following status (other than in CAN sleep mode) Bit 2 (SLPST: CAN sleep status flag) of the CAN0 status register C0STR (2F42h - 2F43h) 0: Not in CAN sleep mode R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 126 of 137 E1/E20 Emulator Appendix A Appendix A Menus Table A.1 View Menu Menu View Menu option Differences { Remark Opens the [Difference] window. Map… ¯ Opens the [Map Section Information] window. Command Line { Opens the [Command Line] window. TCL Toolkit { Opens the [Console] window. Workspace { Opens the [Workspace] window. Output { Opens the [Output] window. Status Bar { Shows or hides the status bar. Disassembly { Opens the [Disassembly] window. Registers { Opens the [Register] window. Memory… { Opens the [Memory] window. IO { Opens the [IO] window. Status { Opens the [Status] window. Labels { Opens the [Labels] window. Watch { Opens the [Watch] window. Locals { Opens the [Locals] window. On-chip Event Image… Waveform… Trace { { { { Opens the [On-Chip Event] dialog box. Opens the [Image Properties] dialog box. Opens the [Waveform Properties] dialog box. Opens the [Trace] window. Stack Trace { Opens the [Stack Trace] window. OS Object { Opens the [OS Object] window CPU Symbol Event Graphic Code RTOS Support {: Supported, ¯: Not supported R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 127 of 137 E1/E20 Emulator Appendix A Table A.2 Debug Menu (1/2) Menu Debug Menu option Synchronized Debugging… ¯ Debug Sessions… { Opens the [Debug Sessions] dialog box for listing, adding, or removing debug sessions. Debug Settings… { Opens the [Debug Settings] dialog box to set the debugging conditions or load modules. Reset CPU { Resets the target MCU and sets the PC to the reset vector address. Go { Starts running the user program from the location currently indicated by the PC. Reset Go { Resets the target MCU and executes the user program from the reset vector address. Free Go { Starts running the user program with all breakpoints ignored. Go To Cursor { Starts running the user program from the address currently indicated by the PC until the PC reaches the address indicated by the current text cursor position. Set PC To Cursor { Sets the PC to the address at the row of the text cursor. Run… { Display PC { Launches the [Run Program] dialog box allowing the user to enter the PC or PC breakpoint during executing the user program. Displays the current PC value in the [Editor] window. Step In { Executes a block of user program before breaking. Step Over { Executes a block of user program before breaking. If a subroutine call is reached, then the subroutine will not be entered. Step Out { Step… { Executes the user program to reach the end of the current function. Launches the [Step Program] dialog box allowing the user to modify the settings for stepping. Step Mode RTOS Debug Support Remark Opens the [Synchronized Debug] dialog box, in which settings for synchronized debugging can be made. Auto { Steps only one source line when the [Editor] window is active. When the [Disassembly] window is active, stepping is executed in a unit of assembly instructions. Assembly { Executes stepping in a unit of assembly instructions. Source { Steps only one source line. Go To Cursor { Enabled only when loading an RTOS program Step In { Step Over { Step Out { {: Supported, ¯: Not supported R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 128 of 137 E1/E20 Emulator Appendix A Table A.3 Debug Menu (2/2) Menu Menu option Support Halt Program { Remark Stops the execution of the user program. Initialize { Disconnects and then restarts the debugging platform. Connect { Connects the debugging platform. Disconnect { Disconnects the debugging platform. Save Memory… { Saves the specified range of data from memory data in a file (.bin, .hex, or .mot). Verify Memory… { Verifies file contents against data in memory. Configure Overlay ¯ Download Modules { Downloads the object program. Unload Modules { Unloads the object program. {: Supported, ¯: Not supported Table A.4 Setup Menu Menu Menu option Support Setup Customize… Options… Format Views… Radix Hex { { { { Emulator RTOS Remark Uses a hexadecimal for displaying a radix in which the numerical values will be displayed and entered by default. Decimal { Uses a decimal for displaying a radix in which the numerical values will be displayed and entered by default. Oct { Uses an octal for displaying a radix in which the numerical values will be displayed and entered by default. Bin { Uses a binary for displaying a radix in which the numerical values will be displayed and entered by default. Device setting… { Opens the [Initial Settings] dialog box, in which settings for the target MCU can be made. System… { Opens the [Configuration Properties] dialog box allowing the user to modify the debugging platform settings. Start/stop Function Setting… { Select OS Definition File { Enabled when loading an RTOS program {: Supported, ¯: Not supported R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 129 of 137 E1/E20 Emulator Appendix A Table A.5 [Memory] Window Option Menu Pop-up Menu Option Support Set… Fill… Move Compare… Test… Save Memory contents… Search… Search Next Address… Scroll Area… Register Followed Stack Pointer… Set Start Up Symbol Refresh Lock Refresh Auto Refresh Refresh Interval… Data Length 1byte 2bytes 4bytes 8bytes Radix Hex Dec Signed Dec Oct Bin Code ASCII SJIS JIS UNICODE UTF-8 UTF-16 EUC Float Float Double Complex Float Complex Double Complex Float Imaginary Double Imaginary { { { { ¯ { { { { { ¯ ¯ { { { { { { { { { { { { { { { { { { { { { { { { { { Fixed Layout Column… Coverage Save… Load… Split 16bit Fixed 32bit Fixed 24 bit Accum 40 bit Accum Label Register Code Enable Remark { { { { { { { { ¯ { { { {: Supported, ¯: Not supported R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 130 of 137 E1/E20 Emulator Appendix A Table A.6 [Trace] Window Option Menu Pop-up Menu Option Support Remark Clear Save… View Source { { { Clears the trace result. Saves the trace result in a file. When you click this button after selecting any line, the source file of the selected line is displayed in the [Editor] window. Trim Source { Trace Branch… { Statistic… Function Call… { { Displays a clipped version of the source being displayed in the Source column, with blanks to the left of it removed. Interpolates the source from the branched-to address to the next branched-from address. Valid when trace data is for “Branch (branch source/branch destination).” Analyzes data counts that matched a specified condition. Displays a history of function execution. Valid when trace data is for “Branch (branch source/branch destination).” {: Supported, ¯: Not supported R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 131 of 137 E1/E20 Emulator Appendix B Appendix B Notes on the High-performance Embedded Workshop (1) Note on moving source file position after creating load module When the source file is moved after creating the load module, the [Open] dialog box may be displayed to specify the source file during the debugging of the created load module. Select the corresponding source file and click on the [Open] button. (2) Source-level execution (source file) Do not display source files that do not correspond to the load module in the program window. For a file having the same name as the source file that corresponds to the load module, only its addresses are displayed in the program window. The file cannot be operated in the program window. (3) Source-level execution (step) Even standard C libraries are executed. To return to a higher-level function, use [Step Out]. You can also select not to step into addresses where no debugging information exists. Open the [Options] dialog box via [Setup -> Options] and select the [Only step in when debug information is available] checkbox on the [Debug] page. In a for statement or a while statement, executing a single step does not move execution to the next line. To move to the next line, execute two steps. (4) Operation during accessing files Do not perform other operations during downloading the load module, operating [Verify Memory] or [Save Memory] in the [Memory] window, or saving in the [Trace] window because this will not allow correct file accessing to be performed. (5) Watch (local variables at optimization) Depending on the generated object code, local variables in a source file that is compiled with the optimization option enabled will not be displayed correctly. Check the generated object code by displaying the [Disassembly] window. If the allocation area of the specified local variable does not exist, displays as follows. Example: The variable name is asc. asc Not available now. (6) Watch (variable name specification) When a name other than a variable name, such as a symbol name or function name, is specified, no data is displayed. Example: The function name is main. main Not available now. (7) Command line interface (Batch file) To display the message “Not currently available” while executing a batch file, enter the sleep command. Adjust the sleep time length which differs depending on the operating environment. Example: To display “Not currently available” during memory_fill execution: sleep d’3000 memory_fill 0 ffff 0 (8) Command line interface (file specification by commands) The current directory may be altered by file specifications in commands. It is recommended to use absolute paths to specify the files in a command file so that the current directory alteration is not affected. Example: FILE_LOAD C:\WorkSpace\Tutorial\E1E20\R8C\Tutorial\Tutorial\Debug\Tutorial.x30 (9) Loading of Motorola S-type files This High-performance Embedded Workshop does not support Motorola S-type files with only the CR code (0Dh) at the end of each record. Load Motorola S-type files with the CR and LF codes (0D0Ah) at the end of each record. (10) Note on [Register] window operation during program execution The register value cannot be changed in the [Register] window during program execution. Even if the changed value is displayed, the register contents are not changed actually. R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 132 of 137 E1/E20 Emulator Appendix B (11) Note on RUN-TIME display Although the execution time for the user program is displayed on the status bar and in the [Status] window, values are rounded down to the nearest 100 μs (i.e. values less than 100 μs are discarded) since an internal 32-bit counter of the emulator is used for this measurement. Values are also not accurate during single stepping, [Step Over], or [Step Out]. (12) Memory test function This product does not support the memory test function, which is activated by selecting [Test…] from the [Memory] menu. (13) “Writing the on-chip flash memory” mode When MCUs are to be continuously programmed, be sure to turn the target system on or off. Debugging functions other than downloading of a program are not usable in the “writing the on-chip flash memory” mode. (14) Disassembled display The [Editor] window in the disassembly mode displays undefined codes as ‘???’. (15) Watch function If a symbol is registered when the user program is under execution, the [Value] column of the [Watch] window shows a warning “Not available now.” In this case, i.e., while there is a symbol just registered, do not enable the automatic updating of all symbols when the user program is being run. REVISION HISTORY Description Rev. Date 1.00 May16, 2011 — 2.00 Aug 30, 2011 7 Page Summary First Edition issued Following target MCUs added: R8C/3xM: R8C/32M, R8C/33M, R8C/34M, R8C/35M, R8C/36M, R8C/38M, R8C/3GM, R8C/3JM Groups R8C/3xGHPR: R8C/32G, R8C/32H, R8C/33G, R8C/33H, R8C/34P, R8C/34RGroups R8C/34K, R8C/34U, R8C/3MK, R8C/3MU Groups R8C/L35M, R8C/L36M, R8C/L38M, R8C/L3AM Groups R8C/3xKU: R8C/LxM: R8C/3NT Group R8C/3MQ Group R8C/LA3A, R8C/LA5A Group R8C/LAPS Group 9 Caution for use in mass production added 12, 17 Connection method for use in FDT added 14 Pins to be connected to Vss added (pins 4, 6 and 10) in Notes 15 Pins to be connected to Vss added (pins 7, 11 and 12) in Notes 33 Information on Power supply checkbox (“Power supply checkbox cannot be selected” when the emulator serial No. is not displayed) added to Note 2 36 No.1 added to Table 4.2 37 Item 4.12.1 “When the E1/E20 emulator is used in other emulator debuggers such as RX Family” added 54 Target MCUs added Information on IO files added to Note 2 R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 Page 133 of 137 E1/E20 Emulator Appendix B Rev. Date 2.00 Aug 30, 2011 Description Page Summary 109 Table 7.2 added (Target MCU:R8C/3xM) 111 Table 7.7 added (Target MCU:R8C/3xGHPR) 112 Table 7.9 added (Target MCU:R8C/3NT) 112 Table 7. 11 added (Target MCU:R8C/3MQ) 112 Table 7.11 added (Target MCU:R8C/3xUK) 113 Table 7.13 added (Target MCU:R8C/L3xM) 114 Table 7.14 added (Target MCU:R8C/LA3A, R8C/LA5A) 114 Table 7.15 updated (96KB,128KB added : R8C/LA6A, R8C/LA8A) 114 Table 7.16 added (Target MCU:R8C/LAPS) 115 Target MCUs of Notes [*2] and [*3] added 120 Target MCU added in 7.3.2(1) Note [*2] added 123 “Memory access during user program execution” added - Caution regarding trace-complementing function deleted (Restrictions on High-performance Embedded Workshop V.4.08) 2.01 Oct 21, 2011 R20UT0081EJ0201 Rev.2.01 Oct 21, 2011 117 Initial Value correction of INTB Page 134 of 137 E1/E20 Emulator Additional Document for User's Manual (Notes on Connection) Publication Date: Oct 21, 2011 Rev.2.01 Published by: Renesas Electronics Corporation Edited by: Microcomputer Tool Development Department 2 Renesas Solutions Corp. http://www.renesas.com SALES OFFICES Refer to "http://www.renesas.com/" for the latest and detailed information. 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