AQ32 no MSP from UART4

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AQ32 no MSP from UART4

SX-70

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.

mlyle

SX-70 Putting a serial monitor on the output I'm not seeing anything, not even garbage.

Our MSP implementation only responds to inquiries and does not telemeter out on its own.

LitterBug

I've got no experience with the AQ32, but I am able to use MSP at 115200 with several builds that I have MWOSD running with. Wonder if there is an issue with the AQ32 target. Have you tried the MinimOSD on a different FC or tried a different MinimOSD?

SX-70

The fact that I get MavLink out but not MSP makes me think it's an AQ32 problem.

SX-70

Ok, I'll monitor the output from my micro minimosd and see if it is interogating the FC properly.

LitterBug

Which MinimOSD are you using? I have a Luminier DLUX that has the TX/RX implimentation backwards.

SX-70

It's the Hobby King micro one. My FTDI adapter just plugs in and works so tx/Rx should be in the correct order. The first thing I did was swap them back and forth though. I'm away from the quad for the weekend but I'll hook up a serial monitor to the OSD when I get back.

SX-70

My fault. I was powering the OSD from the VTx and while it was on the bench I'd been powering the FC with USB and the VTx from a battery. I hadn't tied the grounds together.