Other Parts Discussed in Thread: CC-DEBUGGER, MSP-FET, MSP-GANG
The problem involves programming a TI MSP430F5324 MCU using a TI MSP MCU Programmer and Debugger (http://www.ti.com/tool/MSP-FET). This problem is occuring on prototypes of a new design of an existing product that has been in production for years. There were no changes to the circuitry related to this MCU.
Failure is showing up in about 25% of the boards. While programming the MCU the TI programmer shows ‘EXIT 16’ error message.
The images capture of the JTAG signals between the CC-Debugger and the MSP430 for failed programming and successful programming of the MSP430. It can be seen that the initial sequence (first 250mS) is identical up until the bad board appears to restart the sequence several times. I have additional images and zooms of the details but these images show the behavioral difference between failure and success during programming.
Electrically I’ve confirmed continuity of all connections and see valid signal levels on all of the JTAG signals and do not see any differences in the levels between good and bad boards.