A Maxim Integrated Products Brand
Flash Programmer
Model TFP2
USER’S MANUAL
August 8, 2011
Revision 2.3
Flash Programmer Model TFP2 User’s Manual
Revision History
Revision
Date
Description
1.0
4/27/2007
Initial release.
2.1
2/4/2009
Added note for ICE enable pin.
2.2
10/20/2010
Added Order Number.
2.3
8/8/2011
Added troubleshooting tips.
Replaced TFP2 photos.
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit
patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r iv e , S u n n y v a le , C A 9 4 0 8 6 4 0 8- 7 3 7 - 7 6 0 0
2011 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products.
Flash Programmer Model TFP2 User’s Manual
Table of Contents
1
GETTING STARTED......................................................................................................................... 5
1.1
1.2
1.3
1.4
1.5
2
PC USER INTERFACE ..................................................................................................................... 7
2.1
2.2
2.3
2.4
2.5
2.6
2.7
3
General ...................................................................................................................................... 5
Safety and ESD Notes ............................................................................................................... 5
Kit Contents .............................................................................................................................. 6
Compatibility ............................................................................................................................. 6
Suggested Equipment not Included ......................................................................................... 6
TFP2 CHKSUM.EXE Utility ........................................................................................................ 7
TFP2 EEPROM Download ....................................................................................................... 11
TARGET FLASH Memory Programming ................................................................................ 13
Previously Programmed Device Verification ......................................................................... 14
Device Status Check ............................................................................................................... 15
Code Or Parameter Update..................................................................................................... 15
Parameter Preservation Programming................................................................................... 15
TARGET CODE INITIALIZATION ................................................................................................... 19
3.1 Power Supply CONNECTION .................................................................................................. 20
3.2 RS-232 Serial Connection ....................................................................................................... 20
3.3 Serial Connection Setup ......................................................................................................... 20
4
TARGET FLASH MEMORY PROGRAMMING ................................................................................ 21
4.1 Standalone Programming ....................................................................................................... 23
4.2 PC User Interface Programming............................................................................................. 24
4.3 ATE Factory Automation Programming ................................................................................. 24
5
BOOT LOADER.............................................................................................................................. 27
5.1 Boot Loader Operation ........................................................................................................... 27
6
STATUS INDICATIONS .................................................................................................................. 29
6.1 Normal Operation .................................................................................................................... 29
6.2 Error Conditions ..................................................................................................................... 29
7
TFP2 HARDWARE SPECIFICATIONS ........................................................................................... 31
8
TROUBLESHOOTING .................................................................................................................... 33
8.1
8.2
8.3
8.4
9
Communication Errors ........................................................................................................... 33
Verification Errors ................................................................................................................... 34
Cable Issues and Marginal Timing ......................................................................................... 34
File Load Errors ...................................................................................................................... 34
ORDERING INFORMATION ........................................................................................................... 35
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Figures
Figure 2-1: CHKSUM.EXE Hex File Processing ....................................................................................... 7
Figure 2-2: CHKSUM.EXE Warning Display............................................................................................. 8
Figure 2-3: TFP2 Power-Up Information Display ...................................................................................... 8
Figure 2-4: TFP2 Help Menu.................................................................................................................... 9
Figure 2-5: TFP2 Intel Hex File Download to Internal EEPROM Command ............................................ 11
Figure 2-6: TFP2 Select Target Intel Hex File ........................................................................................ 11
Figure 2-7: TFP2 Download in Progress ................................................................................................ 11
Figure 2-8: TFP2 Download Complete ................................................................................................... 12
Figure 2-9: TFP2 Download Fail due to Incorrect Memory Size Setting .................................................. 12
Figure 2-10: TFP2 Target Mass Erase and Program Command ............................................................. 13
Figure 2-11: Existing Device’s Security Bit Set ....................................................................................... 13
Figure 2-12: Programming Overrides Security Bit .................................................................................. 13
Figure 2-13: Previously Programmed Device Check .............................................................................. 14
Figure 2-14: Previously Programmed Device Check with Security Bit Set............................................... 14
Figure 2-15: Device Checksum and Security Bit Status .......................................................................... 15
Figure 2-16: Device Checksum and Security Bit Status with Security Bit Set .......................................... 15
Figure 2-17: Parameter Mode Selection ................................................................................................. 16
Figure 2-18: Parameter Mode Status ..................................................................................................... 17
Figure 3-1: Memory Size Configuration .................................................................................................. 19
Figure 3-2: TFP2 RS-232 Connection to PC .......................................................................................... 19
Figure 3-3: Port Speed, Port Bit Setup and Flow Control ........................................................................ 20
Figure 4-1: Target-LS Connection .......................................................................................................... 21
Figure 4-2: Target-HS Connection ......................................................................................................... 21
Figure 4-3: Target-LS Connector Pin Locations (looking at TFP2 endplate)............................................ 22
Figure 4-4: Target-HS Connector Pin Locations (looking at TFP2 endplate) ........................................... 23
Figure 4-5: Standalone Configuration (shown with Target-HS cable) ...................................................... 23
Figure 4-6: PC User Interface Configuration (shown with Target-HS cable for example) ......................... 24
Figure 4-7: ATE Connector Pin Locations (looking at TFP2 endplate) .................................................... 25
Figure 4-8: Program Flow Chart ............................................................................................................. 26
Figure 5-1: TFP2 Reprogram TFP2 Program Memory............................................................................ 27
Figure 5-2: TFP2 Boot Completion......................................................................................................... 28
Tables
Table 2-1: CHKSUM Utility Addresses ..................................................................................................... 9
Table 2-2: CHKSUM Utility Output Data ................................................................................................. 10
Table 2-3: CHKSUM Utility Data Dependency ........................................................................................ 10
Table 2-4: Parameter Space Address Location ...................................................................................... 16
Table 3-1: RS-232 Straight Cable Connections ...................................................................................... 20
Table 4-1: Target-LS Connector Pins ..................................................................................................... 22
Table 4-2: Target-HS Connector Pins .................................................................................................... 23
Table 4-3: ATE Connector Pins ............................................................................................................. 25
Table 4-4: ATE Connector Pin Input Voltage Thresholds........................................................................ 25
Table 4-5: ATE Connector Pin Output Voltage Levels ............................................................................ 25
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1
1 GETTING STARTED
1.1 GENERAL
The TFP2 Flash Programmer, Model TFP2 provides a stand-alone, FLASH memory programming tool for
Teridian Semiconductor’s embedded controllers. The TFP2 facilitates FLASH programming in a
manufacturing production environment requiring minimum ancillary equipment. Once the TFP2 has been
initialized with the target’s program code, the target’s FLASH memory can be programmed either
manually via operator push button, or controlled via a factory automation computer (ATE).
The target’s program code is stored in a standard 32-pin PLCC 256 KB x 8 Flash PROM (EEPROM). A
RS-232 interface is provided for connection to a PC allowing for downloading of the target’s program
code to the TFP2’s internal EEPROM. This downloading utility along with target programming and
additional status information is provided via a simple text based user interface.
The TFP2 supports target flash memory sizes of: 8KB, 16KB, 32KB, 64KB, 128KB, and 256KB.
Once the TFP2’s internal EEPROM is programmed, the PC may be removed for standalone operation.
Standalone operation only performs the target FLASH memory programming. Once programmed, the
target’s FLASH memory contents are verified and a PASS or FAIL indication is reported. The TFP2 front
panel incorporates two status LEDs. These status indications are also provided at the ATE connector
and displayed by the PC User Interface.
Two target connectors are provided to facilitate custom target connections. The standard ADM-51 ribbon
cable connector is provided along with a discrete wire connector. The discrete wire connector
accommodates low cost, custom cable harnesses. These two cable connector interfaces are hardwired
together and are not two separate interfaces.
1.2 SAFETY AND ESD NOTES
Standard ESD handling precautions should be employed whenever handling electronic equipment. The
TFP2 Flash Programmer utilizes ESD protection devices on its cable interfaces. Potential equipment
damage and/or malfunction is possible if work surface grounding procedures are not incorporated.
The TFP2 ESD protection devices do not protect the target’s hardware. Correct
handling procedures and proper work area grounding minimizes damage to all
equipment!
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1.3 KIT CONTENTS
Model TFP2 Flash Programmer
5VDC/1,000mA universal wall transformer with 2.5mm plug
Serial cable, DB9, Male/Female, straight cable, 2m length (Digi-Key AE1020-ND)
ATE cable housing and crimp pins
Target-LS cable housing and crimp pins
CHKSUM.EXE Utility Diskette or CD-ROM
Model TFP2 User Manual
TFP2 Quick Start Guide
1.4 COMPATIBILITY
This manual applies to the following hardware and software revisions:
TFP2 firmware revision 1.53 or later
TFP2 hardware revision 1
1.5 SUGGESTED EQUIPMENT NOT INCLUDED
For use with optional text user interface operation (terminal emulation software):
PC w/ MS-Windows versions XT, ME, 2000, or Windows 7, equipped with RS-232 port
(COM port) via DB9 connector
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2
2 PC USER INTERFACE
2.1 TFP2 CHKSUM.EXE UTILITY
Prior to downloading the target’s hex file to the TFP2, the target’s hex file must be preprocessed using the CHKSUM.EXE utility provided with the enclosed diskette. A hex file
not processed with CHKSUM.EXE will result in incomplete programming of the target’s
FLASH memory. The target’s code must be of the Extended Intel ASCII HEX-80 format for
processing by CHKSUM.EXE.
From the DOS Command prompt, invoke CHKSUM.EXE as follows:
chksum kb outfile.hex
where:
kb = desired file size, Memory Size Switch setting to be used during TFP2 downloading and
target programming
infile = target code hex file to be processed
outfile = processed target code hex file to be downloaded to TFP2
The following figure shows a typical invocation of CHKSUM.EXE:
Figure 2-1: CHKSUM.EXE Hex File Processing
The purpose of the CHKSUM utility is to organize the individual hex records into a contiguous “sequential
address increasing” structure. Some compliers produce non-sequential hex files. The TFP2 assumes a
sequential file structure. A non-sequential hex file downloaded to the TFP2 results in missing bytes (the
missing bytes are the out-of-sequence hex records) in the target flash memory (when the target is then
programmed with the TFP2).
The CHKSUM.EXE utility may or may not overwrite the last four bytes of the downloaded target hex file
depending on whether these locations are used or not.
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The following cases apply to using the CHKSUM.EXE utility:
1. If the last four bytes of the target hex file are unused (0xFF), the CHKSUM.EXE utility will insert
its own calculated two byte CRC and two byte checksum.
2. If any of the last four bytes of the target hex file are non-0xFF values, the CHKSUM.EXE utility
will NOT overwrite the four original values.
The CHKSUM.EXE utility displays the following warning when it encounters non-0xFF values:
Figure 2-2: CHKSUM.EXE Warning Display
When programming the target FLASH memory, these last four bytes of the target hex file are transferred
intact. Either the CHKSUM.EXE calculated CRC and checksum bytes are copied or the original target’s
hex data are copied. If the last two bytes of the target hex file are 0xFF (CHKSUM not used), the TFP2
overwrites the last two 0xFF bytes with its calculated checksum during the Hyper-Terminal file Download
operation.
With HyperTerminal configured for serial COM port, 38400 baud, 1 stop bit, no parity, XON/XOFF (refer to
Section 3.3 for serial communication setup information) the following information is displayed upon
applying power to the TFP2. Any generic terminal emulation program will work. However, the target hex
file download instructions presented apply to HyperTerminal.
Figure 2-3: TFP2 Power-Up Information Display
The Memory Size Switch setting and the checksum of the current target file stored in the TFP2’s internal
EEPROM are displayed. An “Invalid Memory Size setting” message appears if the Memory Size Switch is
set to one of the invalid positions. Rotate the Memory Size Switch to a proper setting and re-apply power
to the TFP2 to update the Memory Size setting.
If the target hex file has non-FF values in any of the last four bytes, the above power-on screen may
display a “TFP2 EEPROM verification error.” message. The displayed “TFP2 EEPROM Checksum =”
value and “Stored Checksum =” value will be different. This occurs when the stored checksum value
(from user’s target file) is derived from a different checksum calculation from what the TFP2 uses.
Therefore, the TFP2 cannot confirm the EEPROM’s contents. However, the checksum verification error
will not prevent the TFP2 from programming a target board. The “TFP2 EEPROM Checksum =” value is
recalculated upon every power-on or system reset. Manual verification of the EEPROM’s contents
requires comparing the TFP2 EEPROM Checksum value derived after the file download to subsequent
power-on recalculated checksum values. See Figure 2-8 for an example of a displayed checksum value
after a file download.
Upon pressing the “Enter” key , the “>” character is displayed indicating the TFP2 acknowledges the PC’s
keyboard. Typing “?” followed by the “Enter” key displays the Help Menu.
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Figure 2-4: TFP2 Help Menu
Commands C, E, T, V, Z and ? are single keystroke events (no further user action required until the TFP2
completes the intended task). The D, H and P commands require additional user action and are
described in Section 2.6, Section 2.2, and Section 2.3, respectively. The BOOT command is a special
user action and is described in Section 5.
The following tables show the results of the last two words of the hex file after using CHKSUM and after
downloading and programming using the TFP2. The referenced addresses assume use of a 64KB flash
memory configuration.
Initial Hex File Data
Hex File with 0xFF
Hex File with non-0xFF CRC
Hex File with non-0xFF
Checksum
Hex File with non-0xFF CRC
and non-0xFF Checksum
File Address
0xFFFC
File Address
0xFFFE
0xFFFF
0xFFFF
UserData
0xFFFF
0xFFFF
UserData
UserData
UserData
Table 2-1: CHKSUM Utility Addresses
Upon executing CHKSUM, the first line displayed contains the CHKSUM version. Table 2-2 shows the
results of processing the above hex files with CHKSUM.
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Hex File Data after Using
CHKSUM
CHKSUM v1.5
File Address
0xFFFC
File Address
0xFFFE
Hex File with 0xFF
0xFFFF
Teridian
Checksum
Hex File with non-0xFF CRC
UserData
Teridian
Checksum
Hex File with non-0xFF
Checksum
0xFFFF
UserData
Hex File with non-0xFF CRC
and non-0xFF Checksum
UserData
UserData
Table 2-2: CHKSUM Utility Output Data
The TFP2 Download Verify and Power-Up Verify expects to read the Teridian checksum. For the
following examples shown below, a Download Verify fail and Power-Up Verify fail occurs because the
user data is preserved (rather than over-writing with the Teridian values). A Download Verify fail and
Power-Up Verify fail does not prevent correct target memory programming (these messages are
informational only). The Teridian checksum insertion (over-writing) may only occur when using CHKSUM
or during the TFP2 download (if 0xFF values are encountered).
The TFP2 programs into the target memory what was previously downloaded (once downloaded, the last
two words do not change during programming). The TFP2 then verifies the target memory to its internal
memory resulting in the correct PASS indication even when user data is present.
Target Data after Using TFP2
Target
Address
0xFFFC
Target
Address
0xFFFE
Hex File with 0xFF
0xFFFF
Teridian
Checksum
Hex File with 0xFF after CHKSUM v1.5
0xFFFF
Teridian
Checksum
Hex File with non-0xFF CRC
UserData
Teridian
Checksum
Program Verify Passes
Download Verify Fails
Power-Up Verify Fails
Hex File with non-0xFF CRC after
CHKSUM v1.5 (includes UserData into its
Checksum)
UserData
Teridian
Checksum
Program Verify Passes
Download Verify Passes
Power-Up Verify Passes
Hex File with non-0xFF Checksum
0xFFFF
UserData
Hex File with non-0xFF Checksum after
CHKSUM v1.5
0xFFFF
UserData
Hex File with non-0xFF CRC and non-0xFF
Checksum
UserData
UserData
Hex File with non-0xFF CRC and non-0xFF
Checksum after CHKSUM v1.5
UserData
UserData
Comments
Program Verify Passes
Download Verify Passes
Power-Up Verify Passes
Program Verify Passes
Download Verify Passes
Power-Up Verify Passes
Program Verify Passes
Download Verify Fails
Power-Up Verify Fails
Program Verify Passes
Download Verify Fails
Power-Up Verify Fails
Program Verify Passes
Download Verify Fails
Power-Up Verify Fails
Program Verify Passes
Download Verify Fails
Power-Up Verify Fails
Table 2-3: CHKSUM Utility Data Dependency
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2.2 TFP2 EEPROM DOWNLOAD
Transfer of the target’s code from a PC to the TFP2 begins with the “H” command. The target code file
must have been preprocessed using the CHKSUM.EXE utility provided on the enclosed diskette. Refer
to Section 2.1 for instructions on using CHKSUM.EXE. Use of any other format results in malfunction and
download checksum errors.
After typing “H” followed by the “Enter” key, the cursor moves to the following line. Next, click on the
“Transfer” button and scroll down to “Send Text File” to select the desired file to be downloaded.
Figure 2-5: TFP2 Intel Hex File Download to Internal EEPROM Command
Enable the “All files (*.*)” for file type and select your desired target Intel Hex code file from the
appropriate sub-directory.
Figure 2-6: TFP2 Select Target Intel Hex File
Upon clicking on “Open” a rotating prompt is displayed indicating the file download is in progress.
Figure 2-7: TFP2 Download in Progress
When the file download completes, the number of bytes transferred is displayed. A running CRC is
calculated during the file download for each byte received for programming into the TFP2 internal
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EERPOM. The running CRC calculated during the file download is compared to the embedded CRCs of
the individual byte records within the hex file for appropriate PASS and FAIL indication. Additionally, the
appropriate green or red LED is illuminated. The TFP2 EEPROM checksum calculation value is based
on the memory size switch setting and is displayed for future reference. The download transfer times
may vary from 15 minutes to 1 minute for a 64 KB file size. The Microsoft Windows 2000 Service Pak 4
or later affords the faster download time.
Figure 2-8: TFP2 Download Complete
Possible reasons for a FAIL indication upon downloading a file to the TFP2:
1. Downloaded file not Intel Hex format.
2. USB to RS-232 dongle communication problem (increase Line delay to 10 msec.).
3. USB to RS-232 dongle does not support XON/OFF.
4. XON/XOFF protocol failure, close and restart Hyper-Terminal.
5. Hex file not converted using the CHKSUM.EXE utility.
6. The following messages appear when the Memory Size Switch setting is too small for the
downloaded file.
Figure 2-9: TFP2 Download Fail due to Incorrect Memory Size Setting
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2.3 TARGET FLASH MEMORY PROGRAMMING
Programming of the target’s FLASH memory begins with typing “P” followed by the “Enter” key. The
green LED on the TFP2’s front panel blinks while the target FLASH memory is being mass erased,
programmed and verified. The red LED will momentarily flash on at the start of programming. Upon
completion of the target FLASH memory programming the following display appears. Additionally, the
green or red LED is illuminated upon completion of the target FLASH memory programming.
Figure 2-10: TFP2 Target Mass Erase and Program Command
If the existing device’s security bit is set, the TFP2 prompts for confirmation that programming is to
continue.
Figure 2-11: Existing Device’s Security Bit Set
Type an uppercase “Y” to continue device programming.
Pressing the Program Button on the front panel of the TFP2 automatically proceeds with device
programming regardless of the security bit setting.
Figure 2-12: Programming Overrides Security Bit
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If the TFP2 cannot communicate with the target board, a “Command Timeout” message appears.
Possible reasons for a Command Timeout indication upon programming the target board:
1. Power not provided to target board preventing TFP2 communication with target board.
2. Bad cable connecting TFP2 to target board preventing TFP2 communication with target board.
3. Malfunctioning target board preventing TFP2 communication with target board.
4. TFP2 Programmers built before June 2011 may have timing issues with some 78M66xx devices.
Contact Teridian for further information.
NOTE: The TFP2 must be powered first before connecting the target board to the TFP2.
NOTE: The target’s watchdog timer must be enabled (V1 pin not connected to
V3P3) and the target’s ICE_E pin must be connected to the appropriate
TFP2 connector pin for target flash re-programming if the target’s security
bit is set.
NOTE: Wrong Memory Size switch setting will result in a Verification Error FAIL message.
2.4 PREVIOUSLY PROGRAMMED DEVICE VERIFICATION
A previously programmed device can be checked against the currently loaded image contained in the
TFP2. Use the “C” command to perform this comparison. The green LEDs are illuminated if the flash
contents of the device in the socket match the contents of the TFP2 EEPROMs.
Figure 2-13: Previously Programmed Device Check
If the security bit is set, the target’s FLASH memory cannot be read. Therefore, the Compare results will
fail as shown below. The red LEDs are illuminated indicating this condition.
Figure 2-14: Previously Programmed Device Check with Security Bit Set
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2.5 DEVICE STATUS CHECK
The contents of a device may be read-back to display its current security bit setting and checksum. Use
the “T” command to perform this read-back.
Figure 2-15: Device Checksum and Security Bit Status
If the security bit is set, the target’s FLASH memory cannot be read. Therefore, the Status results cannot
be displayed as shown below.
Figure 2-16: Device Checksum and Security Bit Status with Security Bit Set
2.6 CODE OR PARAMETER UPDATE
The TFP2 firmware typically performs a block erase prior to programming the device’s flash memory.
Additionally, the TFP2 programs the entire address space of the flash memory. The “D” command allows
for programming only a small portion of the target’s FLASH memory, i.e. – code patch or parameters.
Use the “D” command to download a code patch or a parameter table to the TFP2 EEPROM without
erasing and reprogramming the entire TFP2 EEPROM memory. The memory locations to be
reprogrammed are read from the downloaded Hex File. Follow the same instructions of Section 2.2
regarding selecting “Send Text File” menu option after typing the “D” command.
Use the “P” command or the PROGRAM button to program the target board’s FLASH memory with the
updated TFP2 EEPROM contents.
The TFP2 Power-Up checksum verification expects to read the original Teridian checksum. The PowerUp checksum verification may fail due to the code change. A Power-Up Verify fail does not prevent
correct device memory programming (these messages are informational only). Use the “T” command to
verify the current device checksum.
2.7 PARAMETER PRESERVATION PROGRAMMING
The TFP2 firmware typically performs a block erase prior to programming the device’s flash memory.
Additionally, the TFP2 programs the entire address space of the flash memory. Optionally, the TFP2 can
reserve 4KB of flash memory for code or parameter tables.
Use the “E” command to toggle whether the 4KB is preserved or erased/over-written during the “P”
programming operation. The Parameter Mode status change is displayed as shown below.
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Figure 2-17: Parameter Mode Selection
After setting the Parameter Mode using the “E” command, programming can be initiated using the “P”
command or by pressing the front panel Program button.
When Parameter Mode preservation is enabled, the TFP2 programming operation copies the existing
parameter data from the target device. A bulk erase and reprogramming of the target’s FLASH memory
is performed. The TFP2 then restores the previously copied parameter data starting at its highest
address location. Parameter data is re-written to decreasing address locations until all parameter data
locations have been restored. If new code (non 0xFF data) is encountered (above the lowest reserved
parameter address location) the message “No parameters preserved” is displayed during the
programming operation.
The location of the 4KB parameter space depends on the target device’s FLASH memory size. The
TFP2 determines the target FLASH memory size from the front panel Memory Size switch. The following
table shows the reserved address locations of parameter space for different memory sizes.
Memory Size
Switch
Parameter
Space Start
Address
Parameter
Space End
Address
8KB
Not Used
Not Used
16KB
0x2000
0x2FFF
32KB
0x5000
0x5FFF
64KB
0xD000
0xDFFF
128KB
0x0001:D000
0x0001:DFFF
256KB
0x0003:D000
0x0003:DFFF
Table 2-4: Parameter Space Address Location
Usage of the above parameter space assumes new program code does not exist at the previous
parameter(s) address locations. The TFP2 also assumes that the parameters are stored as a contiguous
block. This block of parameters can be located anywhere within the reserved memory locations.
Locating the parameters at the end of the Parameter Space allows for the program code to “grow” into the
lower addresses of the parameter space.
The location of the contiguous parameter block is determined by searching for a non 0xFF data byte
beginning at the Parameter Space “End Address” of the TFP2’s EEPROM image. The address counter is
decremented until a non 0xFF value is found. This locates the lowest address of the parameter data, the
“End Address” being the highest address.
The TFP2 Power-Up checksum verification expects to read the original Teridian checksum. The PowerUp checksum verification may fail due to the code change. A Power-Up Verify fail does not prevent
correct device memory programming (these messages are informational only). Use the “T” command to
verify the current device checksum. The “T” command always includes the Parameter Space addresses
in its checksum calculation regardless of the Parameter Preservation Mode setting. However, the “C”
command operation varies with the Parameter Preservation Mode setting. The Parameter Space
addresses are included in the comparison when Parameter Preservation Mode is OFF. Otherwise, the
Parameter Space addresses are ignored if Parameter Preservation Mode is ON.
The Parameter Mode status is also displayed in the power-up initialization messages.
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Figure 2-18: Parameter Mode Status
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3
3 TARGET CODE INITIALIZATION
Before the target’s FLASH memory can be programmed, the target code must be transferred to the TFP2
for internal storage. First configure the TFP2 for the proper memory size of the target’s code. Rotate the
internal Memory Size rotary switch to the appropriate position. There is a black arrow on top of the rotary
switch shaft denoting the switch position. Only six of the eight switch positions are used. The other two
positions are not used. A blinking red LED after applying power to the TFP2 indicates one of these
unused positions is currently selected. Rotate the Memory Size Switch to a proper setting and re-apply
power to the TFP2 to update the Memory Size setting.
Memory Size
Selection Switch
Figure 3-1: Memory Size Configuration
Figure 2-2 shows the basic RS-232 connection of the TFP2 to a PC. Invoking a terminal emulator
program such as Microsoft’s Windows 2000 HyperTerminal, displays a simple text based user interface
for controlling the TFP2. Refer to Section 2 for instructions on using the user interface.
PC
RS232
Figure 3-2: TFP2 RS-232 Connection to PC
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3.1 POWER SUPPLY CONNECTION
The TFP2 is supplied with a universal AC/DC wall transformer. Alternatively, the TFP2 can be powered
by another external power supply. The TFP2’s power connector requires a 2.5 mm (inner diameter)
power plug. The center conductor is the +VDC and the outer conductor is Ground. External power
supply voltage range is +5VDC +/- 10% regulated. Maximum required power supply current is 200 mA.
NOTE: The TFP2 does not supply power at the Target-LS and Target-HS connectors. Power must
be supplied to the target board separately. The TFP2 must be powered first before connecting the
target board to the TFP2.
3.2 RS-232 SERIAL CONNECTION
For connection of the DB9 serial port to a PC, a straight cable must be used.
PC Pin
Male
Connector
PC
Function
TFP2 Pin
Female
Connector
2
RX
2
3
TX
3
5
Signal
Ground
5
Table 3-1: RS-232 Straight Cable Connections
3.3 SERIAL CONNECTION SETUP
After connecting the DB9 serial port to a PC, start the HyperTerminal application and create a session
using 38400 baud, 8 bits, no parity, 1 stop bit, and XON/XOFF flow control. HyperTerminal can be found
by selecting Programs Accessories Communications from the Windows start menu. The
connection parameters are configured by selecting File Properties and then by pressing the Configure
button. If the Configure button is not active, select Call Disconnect. Port speed and flow control are
configured under the General tab, and bit settings are configured after pressing the Configure button, as
shown in Figure 3-3.
Figure 3-3: Port Speed, Port Bit Setup and Flow Control
Once, communication to the TFP2 is established, press the “Enter” key and the TFP2 program prompt “>”
should appear. Typing “?“ displays the TFP2 program help menu. Type “V“ to verify that the TFP2
program version is revision 1.00 or later.
Refer to Section 2 for instructions on using the PC User Interface.
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4
4 TARGET FLASH MEMORY PROGRAMMING
The TFP2 Flash Programmer connects to the target board via one of two connectors:
1) The Target-LS connector provides connection using discrete wires.
Only use this interface for TCLK frequencies of 10 MHz or less.
TargetLS
Figure 4-1: Target-LS Connection
2) The Target-HS connector utilizes the ADM-1 ribbon cable connector.
Must use this interface for TCLK frequencies of 10 MHz or faster.
TargetHS
Figure 4-2: Target-HS Connection
These two connectors are hard wired together. They are not two separate interfaces (two different target
boards cannot be programmed concurrently).
The Target HS interface must be used when programming 73S12xxF and 78M66xx devices
regardless of the TCLK speed.
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The target connector pin assignments are as follows:
Target-LS
Pin
Pin Function
1
Ground
2
TCLK
3
Ground
4
RESET
Output
5
ICE Enable
Output
6
RXTX
Bi-Directional
TFP2 I/O
Input
Table 4-1: Target-LS Connector Pins
5 3 1
6 4 2
Figure 4-3: Target-LS Connector Pin Locations (looking at TFP2 endplate)
The TFP2 does not supply power at the Target-LS connector. Power must be supplied to the target
board separately. The TFP2 must be powered first before connecting the target board to the TFP2.
Target-LS Connector part numbers:
1. Connector Housing, 6 pin, 0.100
AMP 2-87977-8
(Digi-Key A25831)
2. Connector Pins, Crimp
AMP 102348-2
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Target-HS
Pin
Pin Function
Target-HS
Pin
Pin Function
TFP2 I/O
1
Ground
11
11
Ground
2
ICE Enable
12
12
Not Used
3
Ground
13
13
Ground
4
RESET
14
14
Not Used
5
Ground
15
15
Ground
6
TCLK
16
16
Not Used
7
Ground
17
17
Ground
8
RXTX
18
18
Not Used
9
Ground
19
19
Ground
10
Not Used
20
20
Not Used
TFP2 I/O
Output
Output
Input
Bi-Directional
Table 4-2: Target-HS Connector Pins
19 17 15 13 11 9 7 5 3 1
20 18 16 14 12 10 8 6 4 2
Figure 4-4: Target-HS Connector Pin Locations (looking at TFP2 endplate)
The TFP2 does not supply power at the Target-HS connector. Power must be supplied to the target
board separately. The TFP2 must be powered first before connecting the target board to the TFP2.
Cable length must not exceed 12 inches.
Target-HS ribbon cable part numbers:
1. 20-pin flat ribbon cable connector, 0.050
AMP 111194-4 (Digi-Key A29133-ND)
2. 20-conductor flat ribbon cable, 0.025
Temp Flex F30007S-20-025-85
4.1 STANDALONE PROGRAMMING
With the TFP2’s internal EEPROM initialized with the target’s code as described in Section 3, and the
target board connected to the TFP2 via the Target-LS connector or the Target-HS connector, programming of the target’s flash memory may begin.
Figure 4-5: Standalone Configuration (shown with Target-HS cable)
When power is applied at the DC IN connector, the yellow power indicator LED is illuminated.
Programming of the target FLASH Memory begins upon pressing the “Program” button. A momentary
push button press of 100 msec, not to exceed 1 second is required to commence programming. Mass
erase of the target’s FLASH memory is performed first before programming of the code begins. The
green Programming/Pass LED blinks while programming is in progress. Upon completion of
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programming, the target’s FLASH Memory contents are read back for verification. The green
Programming/Pass LED stops blinking and turns on solid if the target’s FLASH Memory contents are
verified as good. If verification fails, the red Fail LED turns on solid. If the TFP2 cannot communicate
with the target, the red Fail LED turns on immediately. Communications failure may result from no target
power, bad cable or faulty target board. No target FLASH Memory programming will have occurred when
communication has not been established. Either LED indication is cleared upon re-pressing the Program
button.
NOTE: The TFP2 must be powered first before connecting the target board to the TFP2.
NOTE: The target’s watchdog timer must be enabled (V1 pin not connected to
V3P3) and the target’s ICE_E pin (if available on target device) must be
connected to the appropriate TFP2 connector pin for target flash reprogramming if the target’s security bit is set.
4.2 PC USER INTERFACE PROGRAMMING
Alternatively, manual programming may be performed using the PC User Interface. The green and red
LED indicators function as described above. The operational status information is also duplicated on the
PC’s screen. Refer to Section 2 for instructions on using the PC User Interface.
Figure 4-6: PC User Interface Configuration (shown with Target-HS cable for example)
NOTE: The TFP2 must be powered first before connecting the target board to the TFP2.
Do not connect a PC to the TFP2 AND connect the TFP2 to a target board with any connection
to Line or Neutral. Equipment damage will occur due to a Ground signal disparity or live
voltages.
4.3 ATE FACTORY AUTOMATION PROGRAMMING
Automated programming of the target’s FLASH Memory may be performed using the ATE connector.
The interface signals provided at the ATE connector allow a factory automation computer to commence
programming and monitor the status of the programming results. The ATE interface cannot download
target code to the TFP2’s internal EEPROM.
The TFP2 must be powered first before connecting the target board to the TFP2.
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The ATE connector pin assignments are as shown in Table 4-3:
ATE Pin
Pin Function
TFP2 I/O
1
RESETB
Input
Active LO reset to TFP2 processor.
2
Ground
3
PROGRAM
Input
Active HI signal starts target FLASH Memory programming. A
minimum 200 ms pulse is required.
4
Ground
PROGRAM
ACTIVE
Output
5
Active Hi signal indicates target FLASH Memory programming
in progress. De-assert PROGRAM upon PROGRAM ACTIVE
going high.
6
Ground
Output
7
PASS
Active HI signal indicates target FLASH Memory verified to be
correct. PASS goes low when PROGRAM is re-asserted high.
PASS toggles Hi and LO during programming sequence.
8
Ground
Output
Active HI signal indicates target FLASH Memory failed
verification. FAIL goes low when PROGRAM is re-asserted
high. FAIL toggles HI and LO if the TFP2 cannot communicate
with the target board.
9
FAIL
10
Ground
Description
Table 4-3: ATE Connector Pins
9 7 5 3 1
10 8 6 4 2
Figure 4-7: ATE Connector Pin Locations (looking at TFP2 endplate)
ATE Connector part numbers:
1. Connector Housing, 10 pin, 0.100
AMP 3-87977-0
(Digi-Key A25835)
2. Connector Pins, Crimp
AMP 102348-2 (Digi-Key A25943-ND)
ATE interface Logic Level Specifications are given below:
Parameter
Min
Max
Description
Vih
+2.0V
+3.3V
Input high voltage
Vil
0.0V
+0.5V
Input low voltage
Table 4-4: ATE Connector Pin Input Voltage Thresholds
The RESET pin incorporates a 1kΩ pull-up resistor to +3.3V.
The PROGRAM pin incorporates a 1kΩ pull-down resistor to Ground.
Parameter
Min
Max
Description
Voh
+2.4V @ -2
ma
+3.3V
Output high
voltage
Vol
0.0V
+0.45V @ 8 ma
Output low voltage
Table 4-5: ATE Connector Pin Output Voltage Levels
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The PROGRAM ACTIVE, PASS and FAIL outputs incorporate 62Ω series resistors.
The flow chart shown in Figure 3-9 details the programming sequence required of the ATE (must apply
power to TFP2 Flash Programmer before the sequence below begins).
Turn-on power to
target board
BEGIN
Target FLASH
Memory
Is
ProgAct pin 5
HI
Yes
No, verify programmer inactive
Set
PROGRAM pin 3
HI
Is
PROGACT pin 5
HI
No, wait for program sequence to
start
Yes
Set
PROGRAM pin 3
LO
No, wait for programmer to complete.
PASS pin toggles during program sequence.
Is
PROGACT pin 5
LO
FAIL pin toggles if the TFP2 cannot communicate
with the target board.
Yes
Is
PASS pin 7
HI
No
END
Target FLASH Memory
Failed Verification
Yes
END
Target FLASH Memory
Programmed and Verified
Figure 4-8: Program Flow Chart
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5
5 BOOT LOADER
The TFP2 Boot Loader enables the TFP2 firmware to be upgraded in the field (remote location). The
Teridian Semiconductor provided TFP2 firmware file is first downloaded to the TFP2’s EEPROM.
Transfer of this revised firmware file from the TFP2’s EEPROM to its local program memory is performed
by typing “BOOT” at the command prompt. Detailed Boot Loader instructions are provided in the
following section.
5.1 BOOT LOADER OPERATION
Reprogramming (upgrading) of the TFP2’s program memory is accomplished with the following steps:
1. Set front panel Memory Size switch to 64 KB position.
2. Download the new TFP2 firmware file using the “H” command. Follow the instructions described
in Section 2.2.
3. Update the TFP2 program memory using the “BOOT” command. The “BOOT” characters must
be upper case.
Figure 5-1: TFP2 Reprogram TFP2 Program Memory
4. To proceed with reprogramming the TFP2, type an upper case “Y”. The green PASS led blinks
during the reprogramming process. The TFP2 restarts itself once reprogramming is complete.
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Figure 5-2: TFP2 Boot Completion
If the internal TFP2 EEPROM contents are corrupted (checksum comparison failure) or if the EEPROM
contents do not represent a TFP2 code file (user’s target code), the BOOT command will NOT reprogram
the TFP2. The current power-on screen is immediately displayed with no flashing PASS led when a
problem is encountered with the EEPROM contents.
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6
6 STATUS INDICATIONS
6.1 NORMAL OPERATION
Normal front panel LED operation:
5. Green LED blinks during target FLASH memory programming and verification.
6. Green LED on 100% when target FLASH memory verified as good.
7. Red LED never on during normal operation.
Normal ATE status signal operation:
1. ProgramActive pin high during target FLASH memory programming and verification.
2. PASS pin toggles HI and LO during target FLASH memory programming and verification.
3. ProgramActive pin low upon completion of target FLASH memory verification.
4. PASS pin high when target FLASH memory verified as good.
5. FAIL pin never high during normal operation.
6.2 ERROR CONDITIONS
Front panel Red LED error codes:
1. Red LED blinks after power-on – Incorrect Memory Switch setting: either position 6 or 7 selected.
2. Red LED on 100% after TFP2 download – TFP2 download CRC failed.
3. Red LED on 100% immediately upon Target programming – Target not responding upon
attempted programming.
4. Red LED on 100% after power-on – TFP2 does not power-up correctly.
5. Red LED on 100% after programming – Target FLASH memory fails verification.
ATE FAIL status signal error codes:
ProgramActive pin LO and FAIL pin HI immediately - Target not responding upon attempted
programming.
ProgramActive pin LO and FAIL pin HI after ProgramActive was HI- Target FLASH memory fails
verification.
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7
7 TFP2 HARDWARE SPECIFICATIONS
Case Dimensions
Dimensions
Weight
6.0” x 2.5” x 1.5”
0.35 lbs.
Environmental
• Operating Temperature
• Storage Temperature
+10°…+50°C
-40°C…85°C
Power Supply
Supply Voltage
Supply Current
Cable Plug
+5VDC +/- 10% regulated
200 mA max
2.5 mm Diameter
ATE Connector
Input Voltage Lo
Input Voltage Hi
Output Voltage Lo
Output Voltage Hi
0.0V to +0.5V
+2.0V to +3.3V
+0.45V max @ 8 mA
+2.4V min @ 2 mA
Target Connector
Input Voltage Lo
Input Voltage Hi
Output Voltage Lo
Output Voltage Hi
TCLK Frequency
0.0V to +0.5V
+2.0V to +3.3V
+0.45V max @ 8 mA
+2.4V min @ 2 mA
10 MHz to 48 MHz
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8
8 TROUBLESHOOTING
Proper function of the TFP2 with the target IC depends on many factors. These factors are:
•
•
•
•
Cable length and cable quality
Signal termination
Target board and target IC function
Match between selected flash program size and target flash size
When the programming process seems to fail, it is useful to watch the feedback messages from the TFP2
via HyperTerminal. Using the C and/or T commands it can be determined quickly if the issue is with the
communication link or somewhere else.
8.1 COMMUNICATION ERRORS
The typical response of the TFP2 to a communication error when issuing the C command looks as
follows:
>C
Comparing Target Flash to TFP2 EEPROM image
Command timeout.
Command timeout.
FAIL
>
The response to the T command will look as follows when the communication link is interrupted:
T
Command timeout.
>
Likely causes for communication link issues are:
•
•
•
•
•
Cable length – try to keep the cable length below 25 cm (10 inches)
Cable quality – proper multiple grounding and straight cables without loops are preferred. Try to
use the original ribbon cable with an adapter to the target programming connector, if necessary.
If the TFP2 and the PC connected to it have a different ground potential than the target, ground
loops can occur. In that case, try to use an isolated supply for the target.
Termination – in-line resistors, pull-up resistors (if used) and bypass capacitors should be included in the target schematics in the same way as implemented on the Teridian Demo Boards.
Consult the Demo Board schematics for comparison.
Target board power – 3.3 VDC must be supplied to the target IC.
•
Target oscillator – ensure that the crystal is oscillating at 32.768 kHz using an oscilloscope. In
many cases, board contamination or moisture can prevent the oscillator from functioning properly.
•
•
ICE_E not pulled high – this pin, if available on the target IC, must be pulled high.
V1 pin for 71M651x target ICs – for this IC family, the V1 pin must be pulled up to 3.3 VDC to disable the internal watchdog timer.
•
•
Stuck RESET pin – the communication link will fail if this pin is tied to the active potential.
Some older TFP2 units may have timing issues when programming 78M66xx devices. See Section 2.3.
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8.2 VERIFICATION ERRORS
A typical dialog involving a verification error is shown below. In this case, the communication between
TFP2 and the target IC was established, but the programmed target image had at least one error, which
was discovered during the verify process.
>P
Programming Target Flash
Verifying Target Flash
Verification error.
FAIL
>
Likely causes for verification issues are:
• Communication issues can look like a verification error if the signal quality and timing is marginal
– check the items listed above under Communication Errors.
See the hints given in Section 8.3.
• An emulator port signal is also connected to an LCD pin on the target board resulting in a
corrupted signal – provide a jumper that can isolate the LCD pin from the emulator signal(s)
during the flash programming process.
• Mismatch between selected target flash size and actual target flash size – check the setting of the
Memory Size Selection Switch and compare the file size with the flash size given in the target IC
data sheet. For example, the 71M6534 has a flash size of 128 KB whereas the 71M6534H has a
flash size of 256 KB.
• Mismatch between linked target file size and actual target flash size – check the linker settings
and linker report files.
• File error – check the target file loaded into the TFP2. Reload the file, if necessary.
8.3 CABLE ISSUES AND MARGINAL TIMING
Cable issues and marginal timing can manifest themselves as intermittent communication errors and/or
verification errors. If the methods listed in the previous section Verification Errors do not help, a few unconventional fixes can be tried:
•
•
Raising the board voltage to 3.6 VDC.
Adding a resistor of 10 kΩ between E_RXTX and V3P3.
8.4 FILE LOAD ERRORS
File load errors can occur when attempting to load the target image file into the TFP2 using
HyperTerminal. USB-to-serial converters sometimes misinterpret the XON/XOFF control sequences used
for flow control. These cases manifest themselves in stuck file loads or corrupted target images. The
solution is to move to a PC with a true serial interface (COM port).
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9 ORDERING INFORMATION
The following table lists the order number used to identify the TFP2 Flash Programmer.
Table 9-1: Order Number
Part Description
Flash Programmer Model TFP2
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Order Number
80515-FPBM-TFP2
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