Rottengog MPU327 resets - SOLVED!
I wanted to revisit this topic as several folks had had issues with the Rottendog MPU327 resetting when both flippers are energized at the same time. In my case, I had a completely working machine before adding the MPU327. I was using a Rottendog PS board with all other OEM boards. No issues. When I swapped in the Rottendog MPU, the issue started happening. I checked connectors, voltages, etc. All good.
The issue appeared to be the GND reference between the MPU and PS boards. I added a dedicated wire with U connectors on it from board to board, attaching under a mounting screw on each board. It has been bullet proof for the last 2 years. I did pass this along to Jim to let him know as well.
I hope this helps