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Original question:

RM57L843: Calling SL_SelfTest_Flash causes prefetchentry abort

TMS570LS3137: Testing flash parity error detection causes a prefetch abort

Nick Chapple
Prodigy 100 points

Part Number: TMS570LS3137

Hi. I need to test the flash address parity error detection mechanism as part of my startup code. I copied the relevant test code from SL_SelfTest_Flash code from the Safeti library 2.4.0, run it before the interrupts are enabled and I copy the routine to RAM and run it there. The code executes OK in RAM, the test runs and passes and returns to the calling code in flash and execution continues, but at some point later a prefetch abort is triggered. Any clues as to what I have done wrong/am not doing? If I comment out the call the test my project the code runs fine with no prefetch abort..