MCU fails to program suddenly.... Did I get a dud?

[danielbronson]

I recently purchased an evaluation product of the MC56F8257 DSC.  The tower board (TWR-56F8257) arrived and I was able to successfully program it one single time. 

I ran a simple example code (eFLEX lab) on the board.  After that initial programming, it now fails to program.

I am running Codewarrior Eclipse v10.3.  When I try to run the code on the board, no errors occur in the project build.  The programming progress bar climbs to 99% and everything freezes.  The 3rd party flash programming begins and initializes the target.  At which point it says, "Loading programming algorithm..."

But nothing happens.  I have left it for 8 hours with no progress. 

I am concerned that I received a defective product.

This is a time-critical project, so anything that can be done quickly will be extremely appreciated.

[danielbronson · Accepted solution]

For anyone experiencing this same problem, I had accidentally programmed the RESET line to a GPIO.  This is what caused the programmer to not be able to program it anymore.  I fixed it by holding the reset button down before plugging the board power in.  Then I programmed the board, and when the downloading of the program pauses, I let go of the reset button and the 'correct' program was successfully written.

[Monica]

Daniel, is great to know you were able to find and correct the problem.

Thanks for sharing it!

Best regards.