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TMS570LS0432: Prefetch Abort

user5164545
Prodigy 10 points
Part Number: TMS570LS0432

When I added one c file(not related the system configuration, just some if-else logic for application) to  the project, founded this prefetch abort.

IFSR: 0x0000000D

IFAR: 0xEA00053E

MCU: TMS570LS0432

 the question what's this address 0xEA00053E. how can i resolve this issue?

  • 0
    TI__Guru**** 192716 points

    This address is located in the reserved area, so the permission fault is valid. The main issue to resolve is why the CPU tried to fetch an instruction from this address. I would suspect a stack overflow issue, where the return address got overwritten with this value. Can you also post a screenshot of the other CPU registers for the abort mode?