MemManage fault detected in instruction located at 0x6414AA00.

[KKIM.6]

I'm developing a custom board with STM32WB55.

Because there is some error during debugging, I'm trying to solve it.

To check what is problem in the microcontroller, I tried Fault Analyzer in the STM32CubeProgrammer and the program found such an error below.

"MemManage fault detected in instruction located at 0x6414AA00"

Here is the question.

How can I understand what's this error and how can I fix it?

[KKIM.6]

I can see this error also.DIV_0_TRP bit was enabled.

What is this? and How can I understand this error and fix it?

[Remy ISSALYS · Accepted solution]

Hello,

According to UM2237 documentation the Memory Management Fault detects memory access violations to regions defined in the memory management unit (MPU), such as code execution from a memory region with read/write access only. If this fault was triggered by a faulty address, access is displayed on the MMFAR text field.

For the second point DIV_0_TRP allow to enable Usage Fault when the processor executes an SDIV or UDIV instruction with a 0 divider:

• 0 = do not trap divide by 0; a divide by 0 returns a quotient of 0.
• 1 = trap divide by 0.

Best Regards

[KKIM.6]

Thanks for your reply...this problem is solved.