On 20/06/2021 17:59, Andreas Bolsch wrote:
On 2021-06-20 14:12, Oleksandr Redchuk wrote:
нд, 20 черв. 2021 о 00:42 Andreas Bolsch <hyphen0br...@gmail.com> пише:

On 2021-06-19 22:58, Oleksandr Redchuk wrote:

> FT2232D-based adapter
> The same behavior as Ali Tekin reported:
> "Error: error writing to flash at address 0x08000000 at offset
> 0x00000000"
>> On 2021-06-17 14:51, ali tekin wrote:

Do you get this warning below, too? Could you post the cfg file?
>> > Warn : target was in unknown state when halt was requested

Yes, exactly the same.

Right, I get the same problem with an FT232 adapter on STM32L0538-Disco. So the problem is apparently not in the flash loader etc. but somewhere in the transport layer, as via STLink it works. And even with the FT232, the first run (exactly 7168 bytes) is written properly.

Andreas, most probably this is the same old problem: stm32l0x NVM controller stalls the AHB during flash programming and makes SWD memory access very problematic. The different results for different adapters are mainly due to timing.

See http://openocd.zylin.com/5270 and http://openocd.zylin.com/5303

Tom

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