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Hi, I'm using STM32F765IITx dual bank 2MB Flash.Boot loader in the first bank and my FW reside in the other bank.

MYous.8
Associate II

After I've loaded the BL then the FW i encountered the below scenarios:

1-Full chip erased 0xFF in the whole flash.

2-Garbage value in bank of FW.

3-BL code exist but FW code is erased.

I wounder why that happened?

some times making repeated power on/off several times makes the program starts on boot loader.from reading the flash the other bank is erased,I wonder why?

-In general may you refer me to application note or any document which illustrate the causes of flash corruption?

Thanks in advance.

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