What are the reasons of Memory Managent Exception?

akoluacik · ‎2022-08-31

I am implementing a program that retrieves sound from MEMS microphone and process it with XCUBE-AI. The sound is retrieved with DMA, and the related data is written inside RAM. When I use this data, the program goes into Memory Management handler. However, if I fill a memory with loop and use it as sound data, the program works well.

My question is that I couldn't find anything about Memory Management exception, the reasons, etc. How can I solve it?

Erwan SZYMANSKI · ‎2022-09-05

Hello @Anıl Koluaçık ,

Can you please give me some more information concerning your issue ?

Maybe you have some logs when your system crash (a backtrace)?

Can you also give me the Openstlinux version on which you work ?

Kind regards,

Erwan.

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Piranha · ‎2022-09-05

The person works on STM32F7 and most likely hasn't noticed the difference of MCU vs MPU...

Erwan SZYMANSKI · ‎2022-09-05

@Anıl Koluaçık @Piranha ,

Hello,

My bad I thought that you were using X-LINUX-AI. So true, if you work on STM32F7, please post your topics on St Community MCU side.

Kind regards,

Erwan.

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akoluacik · ‎2022-09-08

Sorry for that issue, this is twice I am making this mistake. Sry again.