AVR32918

AVR32918: UC3-A3 XPLAINED Hardware User's Guide Features • Atmel® AT32UC3A3256 microcontroller • 64Mbit SDRAM • Analog input (to ADC) - Temperature sensor - RC filter • I/O - One mechanical button - Four LEDs - Four expansion headers • Footprints for external memory ® - Atmel AT45DB series DataFlash serial flash - Atmel AT25DF series industry standard serial flash • Touch - One Atmel QTouch® slider - One Atmel QTouch button 32-bit Microcontrollers Application Note 1 Introduction The Atmel UC3-A3 XPLAINED evaluation kit is a hardware platform to evaluate the Atmel AT32UC3A3256 microcontroller. The kit offers a large range of features that enables the Atmel AVR® UC3 user to get started using UC3 peripherals right away and understand how to integrate the UC3 device in their own design. Figure 1-1. UC3-A3 XPLAINED evaluation kit. Rev. 32159A-AVR-01/11 2 Related items Atmel AVR32 Studio® (free Atmel 32-bit IDE) http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4116 Atmel AVR JTAGICE mkII (on-chip programming and debugging tool) http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3353 Atmel AVR ONE! (on-chip programming and debugging tool) http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4279 Atmel AVR Software Framework (ASF) http://asf.atmel.no/selector/show.php?device=uc3&store=app 3 General information The Atmel UC3-A3 XPLAINED kit is intended to demonstrate the Atmel AT32UC3A3256 microcontroller. Figure 3-1 shows the available feature on the board. Figure 3-1. Overview of the UC3-A3 XPLAINED kit. 2 AVR32918 32159A-AVR-01/11 AVR32918 Figure 3-2. Functional overview of the Atmel UC3-A3 XPLAINED kit. 3.1 Preprogrammed firmware The Atmel AT32UC3A3256 on the Atmel UC3-A3 XPLAINED kit is preprogrammed with a USB bootloader and a default firmware. The preprogrammed firmware in the AT32UC3A3256 is a simple demonstration of the QTouch button and QTouch slider. 3.2 Power supply The kit needs an external power supply that can deliver 5V and up to 500mA. The actual current requirement for the board is much less than 500mA but in order to be able to power possible expansion boards this margin is needed. The power can be applied to the board either via the USB connector or on pin 10 on the header J3. The USB connector is the preferred input because then it is possible to connect expansion boards on top of the J3 header. The 5V is regulated down to 3.3V with an on board LDO regulator, which provides power to the entire board. Expansion top boards that require 5V will get this from the header J3 pin 10. 3.3 Measuring the AT32UC3A3256 power consumption As part of an evaluation of the AT32UC3A3256, it can be of interest to measure its power consumption. The two-pin header with a jumper mounted on it is the only 3 32159A-AVR-01/11 connection between the common power plane VCC_P3V3 and the VCC_MCU_P3V3 power plane. By replacing the jumper with an amperemeter it is possible to determine the current consumption of the Atmel AT32UC3A3256. To locate the power measurement header, please refer to Figure 3-1. WARNING 3.4 Programming the kit Do not power the board without having the jumper or an amperemeter mounted. Otherwise, the device may be damaged. The kit can be programmed either from an external programming tool or through a USB bootloader which is pre-programmed on the device. The bootloader is evoked by pushing the push button (SW0) during power-on. I.e. push button and then connect an USB cable to the kit. Programming can be performed through the DFU target (bootloader programmer target) in the Atmel AVR32 Studio. How a programmer can be connected to the kit is described in Chapter 4.1. 4 Connectors The Atmel UC3-A3 XPLAINED kit has five 10-pin, 100mil headers. Two headers have a fixed communication interface (J1 and J4). One header has analog functionality (J2), and the last header (J3) has general purpose digital I/O. The 90° angled header is the JTAG programming and debugging header for the AT32UC3A3256. For the location of the respective headers, refer to Figure 3-1. 4.1 Programming header The AT32UC3A3256 can be programmed and debugged by connecting an external programming/debugging tool to the JTAG header. The header has a standard JTAG programmer pinout (refer to online help in AVR32 Studio), and tools such as JTAGICE mkII or AVR ONE! can thus be connected directly to the header. NOTE NOTE NOTE The grey female 10-pin header on JTAGICE mkII has to be used when connecting to the kit. A scoring in the board is made to fit the orientation tab on the header. A standoff adapter (no. 1) is needed when using AVR ONE!. Pin 1 on the JTAG header is at the top right corner and is marked with a square pad. Table 4-1. UC3 programming and debugging interface – JTAG. Pin 1 2 3 4 5 6 7 8 JTAG (1) TCK GND TDO VCC TMS nSRST - 4 AVR32918 32159A-AVR-01/11 AVR32918 Pin 9 10 Note: JTAG (1) TDI GND 1. Standard pinout for JTAGICE mkII and other Atmel programming tools. 4.2 I/O expansion headers There are four available I/O expansion headers on the kit. Some pins have shared functionality with onboard functionality. If “clean” expansion ports are needed, there are available cut-straps on some of the ADC inputs to remove onboard functionality. Table 4-2 to Table 4-5 show what is shared on the header pins. Table 4-2. UC3 I/O expansion header – J1. Pin 1 2 3 4 5 6 7 8 9 10 J1 TWI0 SDA TWI0 SCL USART3 RXD USART3 TXD SPI1 CS0 SPI1 MOSI SPI1 MISO SPI1 SCK GND VCC_P3V3 UC3 pin PA25 PA26 PX57 PX58 PB09 PB10 PB08 PB07 Shared with onboard functionality - Table 4-3. UC3 I/O expansion header – J2. Pin 1 2 3 4 5 6 7 8 9 10 Note: J2 ADC0 ADC2 ADC3 ADC4 ADC5 ADC6 ADC7 GND VCC_ANA_P3V3 (1) UC3 pin PA21 PA22 PA23 PA24 PA20 PA19 PA18 PA17 - Shared with onboard functionality RC filter output NTC - ADC1 (1) 1. ADC channels can be disconnected from onboard functions by cutting the available cut-straps on the bottom side of the board. 5 32159A-AVR-01/11 Table 4-4. UC3 I/O expansion header – J3. Pin 1 2 3 4 5 6 7 8 9 10 Note: J3 GPIO0 GPIO1 GPIO2 GPIO3 GPIO4 GPIO5 GPIO6 GPIO7 GND VCC_P5V0 (1) UC3 pin PA31 PA30 PA29 PA28 PA27 PB00 PB04 PX19 - Shared with onboard functionality - 1. The VCC pin on this header has 5V and is connected to the USB power. Table 4-5. UC3 I/O expansion header – J4. Pin 1 J4 TWI1 SDA TWI1 SCL USART1 RXD USART1 TXD SPI0 CS3 SPI0 MOSI SPI0 MISO SPI0 SCK GND VCC_P3V3 UC3 pin PA15 PA14 PA05 PA06 PA07 PA10 PA11 PA08 Shared with onboard functionality USART1 CTS USART1 RTS Serial flash/DataFlash Serial flash/DataFlash Serial flash/DataFlash - 2 3 4 5 6 7 8 9 10 6 AVR32918 32159A-AVR-01/11 AVR32918 5 Memories The Atmel UC3-A3 XPLAINED has an external SDRAM memory mounted on the board. There are also footprints available for adding either an industrial standard or a proprietary Atmel DataFlash serial flash. NOTE The footprints share the same SPI lines including the chip select, and so it is not possible to mount a device on both footprints at the same time. Table 5-1. Compatible devices for the footprints. Atmel AT45DB AT45DB64D2-CNU AT45DB321D-MWU AT45DB161D-SS AT45DB081D-SS AT45DB041D-SS AT45DB021D-SS AT45DB011D-SS Atmel AT25DF AT25DF641A-SH AT25DF321A-SH AT25DF161-SH AT25DF081-SSH AT25DF021-SSH 7 32159A-AVR-01/11 6 Miscellaneous I/O 6.1 Mechanical button The board is equipped with one mechanical button. Because the button is used to enter bootloader mode it has a pull-up mounted, this means it is not necessary to use the pull-up in the UC3 to detect the status of the button. 6.2 LEDs The Atmel UC3-A3 XPLAINED has four yellow LEDs which are connected to the Atmel AT32UC3A3256 and all of them are active low. One dual LED is mounted near the USB connector. It has one green LED which is used to indicate power and one red LED that can be used for other purposes. The green LED will be active when power is applied to the board but it can be disabled by software from the AT32UC3A3256 device if needed. The red LED is active low and the green LED is active high. 6.3 Analog I/O A RC filter and a NTC temperature sensor are connected to ADC0 and ADC1 respectively. These analog sensors are used as input to the ADC but it is also possible to disconnect them by cutting the cut-straps on the bottom side of the board. The RC filter (1. order low-pass) has an approximate 3dB cut-off frequency of 159Hz. The input to the RC filter is one of the UC3 GPIO pins that can be configured to output a PWM signal to the RC filter. This can be used to generate a DC voltage on the output of the RC filter which can be measured on the ADC. As this is a 1. order filter, the ripple on the DC voltage is proportional to the input frequency. A higher input frequency will give lower ripple on the output. 6.4 Touch The UC3-A3 XPLAINED kit has one QTouch button and one QTouch slider; both are connected to GPIO pins on the AT32UC3A3256. Table 6-1. UC3 touch connections. Touch sensor onboard reference CH1 CH1 CH2 CH2 CH3 CH3 CH4 CH4 QTouch method pin name SNSK1 SNS1 SNSK2 SNS2 SNSK3 SNS3 SNSK4 SNS4 UC3 GPIO pin 98 99 100 101 102 103 104 105 8 AVR32918 32159A-AVR-01/11 AVR32918 7 Included code example The example application is based on the Atmel AVR Software Framework found online at http://asf.atmel.no. For documentation, help and examples on the drivers used, please take a look at the website. 7.1 Compiling and running The code examples that can be found in ASF can be compiled by running make on the makefile included in the project or by opening up the project in IAR™ and compiling the project within IAR. 9 32159A-AVR-01/11 8 Revision history To identify the revision of the Atmel UC3-A3 XPLAINED kit, locate the bar-code sticker on the back side of the board. The first line on the sticker shows the product ID and the revision. For example “A09-1053/10” can be resolved to ID=A09-1053 and revision=10. 8.1 Revision 10 Revision 10 of the UC3-A3 XPLAINED kit is the initially released version. This revision of the kit has the following product ID: A09-1053/10. 10 AVR32918 32159A-AVR-01/11 AVR32918 9 EVALUATION BOARD/KIT IMPORTANT NOTICE This evaluation board/kit is intended for use for FURTHER ENGINEERING, DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY. It is not a finished product, and may not (yet) comply with some or any technical or legal requirements that are applicable to finished products, including, without limitation, directives regarding electromagnetic compatibility, recycling (WEEE), FCC, CE, or UL (except as may be otherwise noted on the board/kit). Atmel supplied this board/kit “AS IS,” without any warranties, with all faults, at the buyer’s and further users’ sole risk. The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies Atmel from all claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge and any other technical or legal concerns. EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER USER NOR ATMEL SHALL BE LIABLE TO EACH OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES. No license is granted under any patent right or other intellectual property right of Atmel covering or relating to any machine, process, or combination in which such Atmel products or services might be or are used. Mailing Address: Atmel Corporation, 2325 Orchard Parkway, San Jose, CA 95131 11 32159A-AVR-01/11 10 Table of Contents Features ............................................................................................... 1 1 Introduction ...................................................................................... 1 2 Related items.................................................................................... 2 3 General information......................................................................... 2 3.1 Preprogrammed firmware.................................................................................... 3 3.2 Power supply ....................................................................................................... 3 3.3 Measuring the AT32UC3A3256 power consumption .......................................... 3 3.4 Programming the kit ............................................................................................ 4 4 Connectors ....................................................................................... 4 4.1 Programming header........................................................................................... 4 4.2 I/O expansion headers ........................................................................................ 5 5 Memories .......................................................................................... 7 6 Miscellaneous I/O ............................................................................. 8 6.1 Mechanical button ............................................................................................... 8 6.2 LEDs.................................................................................................................... 8 6.3 Analog I/O............................................................................................................ 8 6.4 Touch................................................................................................................... 8 7 Included code example ................................................................... 9 7.1 Compiling and running ........................................................................................ 9 8 Revision history ............................................................................. 10 8.1 Revision 10........................................................................................................ 10 9 EVALUATION BOARD/KIT IMPORTANT NOTICE ........................ 11 10 Table of Contents ......................................................................... 12 12 AVR32918 32159A-AVR-01/11 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: (+1)(408) 441-0311 Fax: (+1)(408) 487-2600 www.atmel.com Atmel Asia Limited Unit 01-5 & 16, 19F BEA Tower, Milennium City 5 418 Kwun Tong Road Kwun Tong, Kowloon HONG KONG Tel: (+852) 2245-6100 Fax: (+852) 2722-1369 Atmel Munich GmbH Business Campus Parkring 4 D-85748 Garching b. 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