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Forum Post: MSP-432 Fails to run after power cycle

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I'm using the MSP-EXP432P401R module for product development. I'm currently using CCS Version: 6.1.1.00022 with XDS110 6.0.14.5. I don't want to upgrade at this time, it will break my build. My problem - the program will run normally with CCS Debug attached or after pressing the RST button, while power is applied. If I power cycle the unit, the program fails to run, it starts up ( monitoring with port bits) and then appears to reset continuously. I've shutdown the WDT. I've tried the DEBUG and RELEASE builds - same problem. A simple program will work, it will run after a power cycle. The application that fails after power cycle is large, and has an initialized RAM section of ~600 bytes. The failing application on power cycle makes it to the resetISR, but seems to reset before getting to main(). When the application runs, it takes the 20mSec for the program to run from the resetISR to main(). When it fails after power cycling, it appears to run for 17mSec and then reset.

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