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TM4C123GH6PM: Clearing FMPPE2

Part Number: TM4C123GH6PM

Hi TM4C team,

Our customer has set the FMPPE2 register and needs to clear it. Looking at a few different e2e posts, it looks like the FMPPE registers can be cleared by doing a mass erase. 

In this post... 

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/374640/diagnosing-common-development-problems-and-tips-info-for-tm4c-devices

Can those registers be cleared by following the steps in Issue 6?

Thanks,

Darren

  • Hi Darren,

    Can those registers be cleared by following the steps in Issue 6?

    If you mean to restore the flash to its factory setting with no flash protection then the answer is yes. You can use the "unlock" procedure in LM flash programmer to unlock/restore the flash. Please bear in mind by doing do, you mass-erase the flash including the program flash, EEprom, and all non-volatile registers.