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AM572x strange behavior

Other Parts Discussed in Thread: AM5728

Hi,

I have one question regarding AM5728 exectuion result.

My customer encountered AM5728 strange behavior. Please see the below.Strange_behavior.xls

Please see the line #3. This line shows the execution result of "mov r8, #0" instruction.

As you see,  r8 is not "zero". This execution result is wrong.

Also please see the line #15. The instruction is " add r1, 8, r0 ". But the content of r1 is wrong. It seems this instruction result is stored in r6.

The below is additional information.

* This symptom occurs once in a day. It is rare issue. It does not depend on the environment temperature.

* When this symptom occurs, application is stopped, but OS is still working.

 * This program is in DRAM space. And this area is accessed very often.

What do you think about this symptom? Please advise me.

I appreciate your quick reply.


Best regards,

Michi