[OpenOCD-user] Troubles flashing a STM32F107VC

[Windestam P. <pel...@co...>]

I have a development board from IAR (STM3210C-SK) with an ARM Cortex M3 from ST called STM32F107VC, and I am experiencing some problems when I try to flash it using OpenOCD (I have a bus blaster 2.0a1 JTAG-debugger). The "first" time I flash it (when it was previously flashed using IAR Embedded Workbench) it succeeds, but ends up in the hardfault handler. If I try to flash it again after this, it complains about the flash size being 0 kB and exits (see output at the end of this e-mail). If I try to do a flash probe after the initial flash, it says 0 kB and immediately exits. These are the commands used to flash:
init
halt
sleep 250
flash probe 0
stm32f1x mass_erase 0
sleep 500
flash_write bank 0 app.bin 0
reset
shutdown

Any ideas what could be causing this?


This is the output during  the initial flash procedure:
1000 kHz
adapter_nsrst_delay: 100
jtag_ntrst_delay: 100
cortex_m3 reset_config sysresetreq
Info : max TCK change to: 30000 kHz
Info : clock speed 1000 kHz
Info : JTAG tap: stm32.cpu tap/device found: 0x3ba00477 (mfg: 0x23b, part: 0xba00, ver: 0x3)
Info : JTAG tap: stm32.bs tap/device found: 0x06418041 (mfg: 0x020, part: 0x6418, ver: 0x0)
Info : stm32.cpu: hardware has 6 breakpoints, 4 watchpoints
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x21000000 pc: 0x0801568e msp: 0x200003f8
Info : device id = 0x10016418
Info : flash size = 256kbytes
Info : device id = 0x10016418
Info : flash size = 256kbytes flash 'stm32f1x' found at 0x08000000 stm32x mass erase complete wrote 117716 bytes from file m3_app.bin to flash bank 0 at offset
0x00000000 in 3.399134s (33.820 KiB/s)
Info : JTAG tap: stm32.cpu tap/device found: 0x3ba00477 (mfg: 0x23b, part: 0xba00, ver: 0x3)
Info : JTAG tap: stm32.bs tap/device found: 0x06418041 (mfg: 0x020, part: 0x6418, ver: 0x0)
Error: stm32.cpu -- clearing lockup after double fault
target state: halted
target halted due to debug-request, current mode: Handler HardFault
xPSR: 0x21000003 pc: 0xfffffffe msp: 0x2000fdc0
Polling target failed, GDB will be halted. Polling again in 100ms
shutdown command invoked
Polling succeeded again

This is the output when flashing the second time:
1000 kHz
adapter_nsrst_delay: 100
jtag_ntrst_delay: 100
cortex_m3 reset_config sysresetreq
Info : max TCK change to: 30000 kHz
Info : clock speed 1000 kHz
Info : JTAG tap: stm32.cpu tap/device found: 0x3ba00477 (mfg: 0x23b, part: 0xba00, ver: 0x3)
Info : JTAG tap: stm32.bs tap/device found: 0x06418041 (mfg: 0x020, part: 0x6418, ver: 0x0)
Info : stm32.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : device id = 0x10016418
Info : flash size = 0kbytes
openocd: stm32f1x.c:1022: stm32x_probe: Assertion `num_pages > 0' failed.

//Pelle