iFlight Blitz Wing H743: DShot/DMA conflict - motors work in iNAV but not in ArduPilot

ArduCopter
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Hi, I’m having issues with DShot on iFlight Blitz Wing H743 using ArduPilot. ESCs (LittleBee BLHeli_S/Bluejay) are detected via passthrough but won’t spin in Motor Test. Interestingly, everything works fine in iNAV on the same hardware. I suspect a DMA/Timer conflict in the ArduPilot target for this board. Safety switch is disabled.

H743-R.param (20.9 KB)

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Set these and try it. You don’t need this with The MOT_PWM_TYPE and SERVO_BLH_BDMASK you have configured:
SERVO_BLH_MASK,0
SERVO_BLH_OTYPE,0

There should be no timer group conflict as you have it configured. I suppose you have reviewed this iFlight Blitz H743

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Thanks! I tried it and didn’t help, but then i turned it back to what I had before and it worked! XPP I don’t know how. But now in motor test it functions normally spins and so on. But ESC Configurator won’t allow me to change motor speed, I guess it’s just how it is with Ardupilot…

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