STM32h573 read OTP

CHeck.1 · ‎2023-12-12

Hello,
I'm trying to read the OTP flash form my application but I get a hardfault.

Is there a read protection or something like that?

Here is a code snippet:

#define FLASH_START_ADDRESS 0x08FFF000

int main(void) {
    HAL_Init();

    uint32_t* flash_data = (uint32_t*)FLASH_START_ADDRESS;

    uint32_t data = *flash_data;

SofLit · ‎2023-12-12

Hello,

From Reference Manual: it's due to this:

Please refer to this thread.

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AScha.3 · ‎2023-12-12

maybe....from rm :

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CHeck.1 · ‎2023-12-12

I think that should not result in a hard fault

SofLit · ‎2023-12-12

Hello,

From Reference Manual: it's due to this:

Please refer to this thread.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

AScha.3 · ‎2023-12-12

what hard fault ?

try in ide: (while in debug)

menu -> window -> showview -> fault analyzer

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MM..1 · ‎2023-12-12

I mean your C code is bad check your * chaos.