Hello,
we have designed different boards with STM32G0B1.
With our latest board we find that bootloader is not activated at power on, even when Boot0 is high roughly 1ms before MCU power rises (I can provide oscillogram), instead of bootloader, application is started.
Of course nBOOT_SEL option is zero.
After giving a reset, bootloader is correctly starting.
The only difference to other boards might be MCU revision. We have that problem with MCUs marked 'Z'.
With 'A' marking every board is working.
Are there differences between MCU revisions regarding this?
Is there a minimum time Boot0 has to be high before power on?
Is reset required to activate bootloader (i.e. is it not guaranteed to start after power on? if yes, what are the differences between reset and power on, respectively where are they documented)?
I did not find answers to the above in your documentation.
Thank you in advance
