texane/stlink — pull request #114 by wkoszek (2012-11-04 06:29:29+00:00)
Title: Support for STM32 F3 Discovery board (ARM Techcon 2012)

Based on DM00043574.pdf (RM0316)

Support was tested by attaching USB cable to USB ST-LINK USB port, starting

./st-util

Which resulted in proper device recognition:

2012-11-03T23:11:25 INFO src/stlink-common.c: Device connected is: F3 device, id 0x10016422
2012-11-03T23:11:25 INFO src/stlink-common.c: SRAM size: 0xa000 bytes (40 KiB), Flash: 0x40000 bytes (256 KiB) in pages of 2048 bytes
Chip ID is 00000422, Core ID is 2ba01477.

Then from GDB, after "target remove localhost:4242", I tested reads:

x/w 0x20000000

And writes:

set {int}0x20000000 1

And ELF loading:

(gdb) load main
Loading section .text, size 0x10 lma 0x20000000
Start address 0x20000000, load size 16
Transfer rate: 410 bytes/sec, 16 bytes/write.

And verified dissasembly (in my case--with Thumb mode) with objdump -d
output:

(gdb) set arm force-mode thumb
(gdb) x/7i 0x20000000
=> 0x20000000: push {r7}
0x20000002: sub sp, #12
0x20000004: add r7, sp, #0
0x20000006: ldr r3, [r7, #4]
0x20000008: add.w r3, r3, #1
0x2000000c: str r3, [r7, #4]
0x2000000e: b.n 0x20000006