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HardFaultException in RAM-Test

drechsel2
Associate

‎2016-09-22 05:55 AM

Posted on September 22, 2016 at 14:55

The RAM-test procedure STL_FullRamMarchC(void) of the IEC 60335 SelfTest library ends with a HardFaultException. Debugging the function Shows that this happens after Step 6.  The return address seems to be lost.

Processor: SMT32F103VE.

Can anybody help?

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Tesla DeLorean
Guru

‎2016-09-22 07:20 AM

Posted on September 22, 2016 at 16:20

Look at the code generated by your tool chain, review if it is using the stack, if it is calling out to library/support functions instead of in-lining, and if you are wiping the cache or otherwise changing the LR register. Check optimization levels chosen.

Talk to those on your team responsible for code validation.

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