STM32H7 reading FLASH causes Hardfault

[奥特曼9527]

The chip is H743. After performing a erase operation on a page and resetting it, when I read the page again, the debug page shows that the erased page is 0xAA. As long as I read it, I will enter hardfault. Have you ever encountered a big shot,

[TDK]

How are you erasing the page? Try erasing in STM32CubeProgrammer instead and see if you can duplicate the behavior.

[KDJEM.1]

Hello @奥特曼9527 and welcome and the community;

 

May this article How to debug a HardFault on an Arm® Cortex®-M STM32 can help you to debug the HardFault. 

Also, you can take a look at this FLASH_EraseProgram example and check your code.

 

I hope this help you.

Thank you.

Kaouthar