When debugging, I saved the data in flash memory successfully and at soon the HardFault_Handler happened ,way?

[XZou.1]

When debugging, I saved the data in flash memory successfully and at soon the HardFault_Handler happened ,way? I used the same function in examples and the same Flash memory address.

 https://github.com/STMicroelectronics/STM32CubeL5/tree/a7a8ea66c42ca57e5f1662a2d4023d32edf9f993/Projects/STM32L562E-DK/Examples/FLASH/FLASH_EraseProgram

 

[Tesla DeLorean]

Show a disassembly of the section of code that actually faulted, and the registers at the fault. The handler code is of no interest.

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Make sure the memory is erased and aligned, and that you're not trying to reprogram within the flash line.​