MiSTer FPGA Forum

I wonder if someone can help me, I just got an io board and I’m having a couple of issues, when I connect the mt32pi I get a garbled picture on the little oled screen, I also have problems when using mega drive/Genesis controllers via snac, everything works as it should with the digital io board so I’ve eliminated it to the analogue board.

I’ve included some pictures to see if one of you clever people can let me know if I’m missing anything

The only obvious issue I can see is it looks like you have a solder bridge on the RN15 resistor network. See my picture below:

Well spotted! Thanks so much, that fixed both issues, I was ready to destroy the board