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STM32F7XX bootloader unable to erase.

svLag
Associate II

Hello,

We already have developed a USART boot-uploader for a project of ours, testing it on an STM32F7XX customized board.

I can bring up the bootloader by init command ( 0x7F ) and get a response 0x79 ( ACK ). But an extended erase command fails to respond back with an ACK.

This development has been done long time back. The upgrading STM32F7XX chip has been working from a long time. But very recently there have been two cases in which upgrade feature fails.

Please let me know the reason and suitable workaround.

Thanks.

Regards,

Sushrut Lagwankar

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1 REPLY 1
svLag
Associate II

Any support you can provide on this issue??