Re: [OpenOCD-user] How to program the stm32F7xx flash via jtag and openocd?

[Franzi Edo. <edo...@uk...>]

Hi Paul
Thanks for your suggestions

> On 15 Nov 2015, at 16:01, Paul Fertser <fer...@gm...> wrote:
> 
> Hi,
> 
> On Sun, Nov 15, 2015 at 03:16:49PM +0100, Franzi Edo. wrote:
>> stm32F4xx). With the latest openocd I cannont program the flash of the stm32F7xx
>> . Again, for hardware reason I cannot use J-Link.
> 
>> From OpenOCD's POV it doesn't matter whether you use FTDI or J-Link,
> they're both treated as low-level debug adapters.

OK

> 
>> 1. I have patched openocd-0.9.0 with some proposed improvements for supporting
>> the stm32F7xx flash
> 
> What patches specifically do you have applied?

This was an old try. Now I use the latest GIT Head version

> 
>> init
>> reset halt
>> sleep 1000
>> stm32f2x mass_erase 0
>> flash write_image ./EPROM.elf
>> reset run
>> shutdown

> Instead of all this it's usually recommended to use:
> 
> program EPROM.elf verify reset exit

OK, I will try again

> 
>> Info : clock speed 2000 kHz
>> Info : JTAG tap: stm32f7x.cpu tap/device found: 0x5ba00477 (mfg: 0x23b, part:
>> 0xba00, ver: 0x5)
>> Info : JTAG tap: stm32f7x.bs tap/device found: 0x06449041 (mfg: 0x020, part:
>> 0x6449, ver: 0x0)
>> Warn : JTAG tap: stm32f7x.bs       UNEXPECTED: 0x06449041 (mfg: 0x020, part:
>> 0x6449, ver: 0x0)
>> Error: JTAG tap: stm32f7x.bs  expected 1 of 1: 0x06449071 (mfg: 0x038, part:
>> 0x6449, ver: 0x0)
> 
> This is already weird, and needs to be sorted out before you proceed
> with everything else. Looks like hw issue to me. Probably bad
> grounding or target Vcc doesn't match ftdi's or some other, more
> subtle issue.

From my oscilloscope the signals seems to be OK

> 
>> Error: Can't assert SRST: nSRST signal is not defined
> 
> This means you shouldn't use reset_config srst_only (or trst_and_srst)
> if your debug adapter config doesn't actually have srst and you do not
> define it in the adapter config.

How to proceed for not use those signals?

> 
> -- 
> Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software!
> mailto:fer...@gm...