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Forum Post: MSP430FR6989 Ultra Low Power Debug

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Greetings, everyone! I'm using MSP430FR6989 and when trying to put a breakpoint in my code I get the error message: "EEM module not accessible while running in Ultra Low Power Debug Mode - Deactivate Ultra Low Power Debug mode to enable this feature" I was able to fix this by following this thread: e2e.ti.com/.../464151 and by unchecking "Project properties -> Debug -> MSP43x Options -> Low power mode settings -> Enable Ultra Low Power debug / LPMx.5 debug" BUT I DONT UNDERSTAND - WHY? First of all I don't use low power modes in my code. I have turned off all optimizations. Second - let's assume that I enter this low power mode (LPMx.5) somehow due to some unknown optimizations. Then why do I have to UNCHECK the "Enable Ultra Low Power debug / LPMx.5 debug" ? What does it do? Regards, L. B.

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