14:57 <Guest64> Not sure where to leave this, I just wanted to point out a problem that I was puzzled with for quite some time. I had two boards, both with STM32H7. I could flash both with openodc + Raspberry Pi 3 + ST-Link V2 but only one with openocd + raspberrypi-native.cfg.

14:57 <Guest64> This was my error message:

14:57 <Guest64> ** Programming Started **

14:58 <Guest64> Info : Device: STM32H74x/75x

14:58 <Guest64> Info : flash size probed value 2048

14:58 <Guest64> Info : STM32H7 flash has dual banks

14:58 <Guest64> Info : Bank (0) size is 1024 kb, base address is 0x08000000

14:58 <Guest64> Info : Padding image section 0 at 0x08000298 with 8 bytes

14:58 <Guest64> Info : Padding image section 1 at 0x08043a84 with 28 bytes (bank write end alignment)

14:58 <Guest64> Warn : Adding extra erase range, 0x08043aa0 .. 0x0805ffff

14:58 <Guest64> Info : SWD DPIDR 0x6ba02477

14:58 <Guest64> Error: Failed to read memory and, additionally, failed to find out where

14:58 <Guest64> Error: error while reading from address 0x5200200c

14:58 <Guest64> Info : SWD DPIDR 0x6ba02477

14:58 <Guest64> Info : SWD DPIDR 0x6ba02477

14:58 <Guest64> Error: Failed to write memory at 0x52002010

14:58 <Guest64> Error: error while writing to address 0x5200200c

14:58 <Guest64> Error: error during the lock of flash

15:51 <PaulFertser> Guest64: please do not paste more than 3 lines in a public channel in the future.

15:51 <PaulFertser> Guest64: do you have any kind of line termination between raspberrypy and the target boards?

15:52 <PaulFertser> Guest64: usually jtag adapters have 47--100 Ohm in series.

15:53 <PaulFertser> On every data line to avoid ringing.