projects / libsigrokdecode.git / blame
| Commit | Line | Data |
|---|---|---|
| 80b6876c UH |
1 | ------------------------------------------------------------------------------- |
| 2 | JTAG | |
| 3 | ------------------------------------------------------------------------------- | |
| 4 | ||
| 5 | This is a set of example captures of JTAG communication to an Olimex | |
| 6 | STM32-H103 eval board with an ST STM32 (ARM Cortex-M3) microcontroller. | |
| 7 | ||
| 8 | The JTAG adapter used was the FTDI FT2232H based Floss-JTAG (V0.2). | |
| 9 | ||
| 10 | The firmware flashed to the board is a simple LED-blinking libopencm3 | |
| 11 | example named 'fancyblink'. The respective fancyblink.bin file is | |
| 12 | available as a reference in the same directory as this README. | |
| 13 | The file's MD5 sum is aa6980d55b9ced84fc0c64bfe9e5ff98. | |
| 14 | ||
| 15 | Details: | |
| 16 | http://olimex.com/dev/stm32-h103.html | |
| 17 | http://randomprojects.org/wiki/Floss-JTAG | |
| 18 | http://libopencm3.org | |
| 19 | http://libopencm3.git.sourceforge.net/git/gitweb.cgi?p=libopencm3/libopencm3;a=tree;f=examples/stm32/f1/stm32-h103/fancyblink | |
| 20 | ||
| 21 | ||
| 22 | Logic analyzer setup | |
| 23 | -------------------- | |
| 24 | ||
| 25 | The logic analyzer used for capturing was a Saleae Logic: | |
| 26 | ||
| 27 | Probe STM32-H103 JTAG connector | |
| 28 | ------------------------------------- | |
| 29 | 1 (black) TRST | |
| 30 | 2 (brown) TDI | |
| 31 | 3 (red) TMS | |
| 32 | 4 (orange) TCK | |
| 33 | 5 (yellow) TDO | |
| 34 | 6 (green) RST | |
| 35 | ||
| 36 | ||
| 37 | JTAG/OpenOCD setup | |
| 38 | ------------------ | |
| 39 | ||
| 40 | The OpenOCD used was "0.5.0 (2011-08-09-08:45)" (Debian version 0.5.0-1). | |
| 41 | ||
| 42 | It was invoked like this: | |
| 43 | ||
| 44 | openocd -f interface/flossjtag-noeeprom.cfg \ | |
| 45 | -f board/olimex_stm32_h107.cfg \ | |
| 46 | -c "init" -c "reset init" \ | |
| 47 | -c "stm32f1x mass_erase 0" \ | |
| 48 | -c "flash write_image fancyblink.bin" \ | |
| 49 | -c "reset" \ | |
| 50 | -c "shutdown" | |
| 51 | ||
| 52 | sigrok setup | |
| 53 | ------------ | |
| 54 | ||
| 55 | The sigrok command line used was: | |
| 56 | ||
| 57 | sigrok-cli -d 0:samplerate=4mhz --time 20s \ | |
| 58 | -p '1=TRST,2=TDI,3=TMS,4=TCK,5=TDO,6=RST' \ | |
| 59 | -o olimex_stm32-h103_flash_fancyblink.sr | |
| 60 |