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TMS320F2800156-Q1: Flash ECC self-test failed with hook function

Part Number: TMS320F2800156-Q1

Tool/software:

Hi team:

 We need to  implement Flash ECC self-test, and also use hook function to implement MPU. Here is the configuration of the hook function in properties.

We clear uncorrectable error status(MemCfg_clearUncorrErrorStatus(MEMCFG_UCERR_CPUREAD)) in nmiISR. We put nmiISR interrupt function in RAM. The code runs out of control when executing EALLOW in MemCfg_clearUncorrErrorStatus function. Here is the position where code runs out of control in debug mode. But it executes normally without hook function. Why?

BR

Samuel