I am trying to encrypt part of my code and write back to internal flash. The MCU is STM32F407 and write to flash sector 3 (0x0800C000 - 0x0800FFFF). I customized the sct file to avoid other codes taking the place.
The encrypted data takes 1Kbytes and writing with checking the return code without any errors. But after I restart the MCU, there are 5 bytes become 0x00: 0x0800C08C, 0x0800C090, 0x0800C091, 0x0800C092, 0x0800C093. I have tried to move the address to 0x0800C400, the 5 bytes are still zero at the same offset. I have dumped the memory and confirmed that they should be some non-zero values. Do you have any hint to solve it?
