About Mmcdo.1

Mmcdo.1 · 2020-11-18

I am trying to program the FLASH via the bootloader on USART1 of an STM32L431RBT6.I can successfully access the bootloader with boot0=1 and a reset.The bootloader properly acknowledges all the following commands, and returns the correct information:0...

Mmcdo.1 · 2020-11-19

Well, I am glad there are smart poeple on the internet like you, I'd be completely lost otherwise. I was able to write the fLASH.

Mmcdo.1 · 2020-11-19

Thanks for pointing out the two ACK. I completely missed that!It seems the mass erase is working now, but I still can't read/write the flash, all address requests e.g. 0x80000000 are denied with NAK.e.g. Send: 0x31 0xCE (write )Recv: 0x79 (ACK)Send...

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Problem with bootloader flash erase/read.

Re: Problem with bootloader flash erase/read.

Re: Problem with bootloader flash erase/read.