I'm configuring my Mico MinimOSD with MWOSD for my Aeroquad. I've loaded the latest MWOSD firmware for dRonin, and configured it with the GUI. I've set up UART4 for MSP at 115200 but nothing is updating in the OSD, just default output.
Putting a serial monitor on the output I'm not seeing anything, not even garbage. I tried changing UART4 to GPS and plugged my GPS in, but then it didn't work, so I thought perhaps the port was dead. I then wired up UART1 and tried the OSD there but got nothing on the screen and nothing in the serial monitor.
UARTs 6 and 3 are working perfectly and honestly I'm a bit confused.
EDIT: If I change the output of UART1 to MavLink I get output on the serial monitor, nothing again when I switch back to MSP. Same on channel 4, so It looks like I've got something messed up with enabling MSP.