ERASE Issue in STM32WB55CGU6TR through i2c

[pippalla_chakravarthi]

HI ,

I am trying to flash the STM32WB55CGU6TR using i2c bootloader mode.I can successfully get into the bootloader mode and able to read the bootloader version.But while performing the Erase operation its get failing(Time out Error).

I am writing the bellow option bytes in "0x1FFF 8000" address and Value "0X3DFF F1AA"
Can someone help me to resolve this issue ?. Thanks in advance


Best Regards,

eagle_eye

[STTwo-32]

Hello @pippalla_chakravarthi 

I'm not able to reproduce this from my side. Could you please add more description.

Best Regards.

STTwo-32

[pippalla_chakravarthi]

Hi @STTwo-32 ,

Could you share your steps on how you erased MCU

[STTwo-32]

It is detailed on the part 2.7 of the AN4221, If you still have the same issue. please give me the way you are using to see what is wrong on your steps.

Best Regards.

STTwo-32