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CCS/MSP432E401Y: Mass Erase Failed

Andy Fung
Intellectual 875 points
Part Number: MSP432E401Y


Tool/software: Code Composer Studio

When trying to load the program, keep getting the error "CORTEX_M4_0: File Loader: Memory write failed: Flash Programmer: Mass erase failed".

I modified the flash protection before I got this: FlashProtectSet(0x80000, FlashReadWrite); But did not do the protect save FlashProtectSave(). 

Tried to erase the entire memory by run the script M432E4_MASS_ERASE, the console window shown "CORTEX_M4_0: GEL Output: Main memory erased". The power is re-cycled and tried to load the program again but still failed.

Also tried to use UniFlash 5.0.0.2289 to erase the flash. There is only "Lock Device" but no "UnLock Device" option.

Please instruct me how to erase the flash and load the program agian. Thanks.