Overview of the ATEB40x Evaluation Board
This picture above shows the ATEB40x Evaluation Board (User Guide and Schematic) :
- Evaluation Board based on AT91x40 series
- 5.0V DC-only power supply
- Two serial ports
- Reset push button
- Four user-defined push buttons
- Eight LEDs
- 256Kb 16-bit SRAM (upgradeable to 512K Bytes)
- 1Mb 16-bit Flash
- 512Kb of EEPROM with two-wire interface access (controlled by a software two wire interface)
- 20-pin JTAG interface connector
- AT91FR40162 daughter board, with 256K Bytes of On-chip SRAM and 1024K Words 16-bit Flash Memory (Datasheet)
Jumper Settings:
- SW1: 1-2 and 3-4 → To use the internal flash of the AT91FR40162
- SW2: open
- SW3: 1-2 → Boot Mode Select is low level
- SW6: 1-2 → The AT91 core is powered by 1.8V power supply
- SW7: 1-2 → Doesn't really matter since we're using the internal flash
JTAG Connection to PC/ Flashing Microcontroller
In order to flash the AT91FR40162 daughter board, you need to use the above displayed JTAG dongle.
- Download the SEGGER J-Link software and documentation pack: http://www.segger.com/cms/jlink-software.html?step=2&file=JLink_424e (Serial number: 20001900)
- After installation open the J-Flash ARM software
- “File→Open project …”, then select Directory: …/SEGGER/JLinkARM_V424d/Samples/JFlash/ProjectFiles/ and pick “AT91FR40162.jflash”
- In “File→Open data file …” you can select .bin or .hex files for flashing
- With “Target→Connect” you can connect to the microcontroller and then flash it by selecting “Target→Program & Verify”
- Finally, you need to select “Target→Start Application”
- You might need a software activation code which you find in the protected section of this wiki
Using ImageCraft for Coding
Here's some sample code with the correct project options: at91_imagecraft.rar. The sample code provides different test functions:
- led3_toggle() - simple toggle of LED
- putcharUART0(char sendChar) - send single character (uart0)
- receive_send_char() - receive single character and echo it back (uart0)
- send_buffer() - send a buffer with data (uart0)
- receive_send_buffer() - receive 10 characters of data and send back 5/10 characters (uart0)
- press_button() - if button SB5 pressed → all LEDs on
After compiling the code you can flash the microcontroller with the .bin-file as described in the section “JTAG Connection to PC/ Flashing Microcontroller”.