Issues with V5+ Motor output

ArduCopter
1

Hello.
I have a Hexacopter with a CUAV V5+ I was attempting to set up with Dshot with. I realized that only aux 1-4 support this and then switched to trying a normal configuration. I cannot seem to get PWM out on 1-8 and have a successful motor test on all 6 motors in this configuration.

Two Mamba 4in1 ESCs
ESC 1 = m1,m2,m3,m4
ESC 2 = m5,m6
CUAV V5+
Mateksys Hex PDB

Both ESCs work as I have been able to get them to talk when using some odd mix of Dshot and pwm. But never when all on PWM and for some reason it keeps making 1-4 PWM 5-12 Dshot and 13-16 PWM. I cannot find the information I am looking for.

2

Do you have this parameter ? BRD_IO_DSHOT
Otherwise post the parameter file. It has to be a configuration producing those outputs types.

3

I do have this parameter. However It is set to 0 = StandardFW since I gave up on DSHOT.
I was able to get PWM output from all 6 Aux outputs.
The issue was I overlooked the ESC Calibration and this step allowed motors 1-4 to start working.
My Main outs are likely fine I just didn’t calibrate.
Ideally I would like to use DSHOT on my AUX 1-6 outs. I can’t seem to find a straight answer about whether it is possible or not. I have read that only AUX 1-4 are capable of DSHOT on the CUAV V5+ and I have read that you can have DSHOT on AUX 1-6 but not BDSHOT.

4

You can have 8 Dshot300 outputs on the Main outputs by enabling that parameter.

And this from the HWDEF readme:
The remaining 6 outputs (labelled AUX1 to AUX6) are the “auxiliary” outputs. These are directly attached to the STM32F765 and support all PWM protocols as well as DShot.

Fmuv5, which that FC is built to, is old and the docs are not up to date reletive to Bdshot. Configure for Dshot and get it working and then try it. Of course you will have to flash the Bdshot version of firmware if you haven’t already.

This is all likely just a configuration issue. I would put all 6 on the AUX outputs and configure for Dshot600 and see if it works.

You could be right about Bdshot only on the 1st 4 AUX outputs:
This gives bi-dir dshot on the first four channels
PA10 TIM1_CH3 TIM1 PWM(2) GPIO(51) BIDIR
PE11 TIM1_CH2 TIM1 PWM(3) GPIO(52) BIDIR

5

Copy that. Thank you for the heads up.
Motors 1-6 are currently wired to Aux 1-6.
I flashed the bdshot firmware as I’m not sure of a dshot firmware.
Configured it to Dshot in the only way I know how.
I am able to get the motors to spin on motor test. However I can’t seem to configure this correctly. It keeps showing me.
RCOut: PWM:1-8 DS600:9-12 PWM:13-16

DSHOT_TEST_AUX.param (17.7 KB)

6

You don’t need this so set it to 0, SERVO_BLH_OTYPE, but I doubt this will make a difference.
It’s strange that it’s showing PWM 13-16 when it only has 6 AUX outputs. So try setting SERVO_BLH_MASK,65280 and see what the Rcout message says. Other than that I would say configure Dshot300 on the Main outputs.

So I agree with you that the configuration is confusing.