Had a big crash and as part of the rebuild changed the VTX to the Mamba for a higher output power. I have low power on disarm enabled and about 1 out of 10 armings it doesn't to go the higher power level (pretty annoying to have to loop back to re-arm to get the higher power level, also confirmed with looking at the led indicators on the VTX, the OSD reports the higher output power even when the VTX fails to step up the power). I tried setting the baud rate to 115200 for the uart but it goes back to auto when I hit save. To check my wiring and FC i put the old VTX in (rush tank II which uses the same pinout, just SA instead of Tramp) and it works perfectly, powers up every time I arm.
#Mamba Diatone Ultra 1000 VTX intermittently doesn't respond to Tramp
slow wolf
slow wolf
I can see the issue happen in the blackbox. On the 6th time arming the quad the VTX doesn't power up (first 5 it behaved as it should). There is a big jump in 'reply code' numbers on the 6th arming. Anyone know what that is? Sounds like it is the FC receiving replies from the VTX? Shouldn't the FC resend the command if the reply is wrong?