Do you have the bin file?
Yes, sent it to you.
You are getting 100% errors on the ESCs so no RPM information. Since someone else has got it to work on this board I am either thinking BLHeli32 version or ESCs. Are you able to use vanilla 32.7?
I donât know. Iâll make up a cable so I can use another FC flashed with Betaflight so I can talk to this one and see whatâs possible.
Sorry, Iâll test the later version when I can
Thatâs what Dev is all about I appreciate the help.
@andyp1per I see strange behavior with MatekH743 and Blheli32 ESC (HAKRC-35A-BLheli-32):
- With âMatekH743-bdshotâ FW if I set DShot150 or DShot300 motors doesnât spin when I arm, sometimes if I reboot and / or power OFF - ON they spin (after arming) but I donât find a logical scheme. With DShot600 motors always spin after arming.
- With âMatekH743â FW I have no problems: DShot150, DShot300 and DShot600 always OK.
I just tested this. I have been running on Dshot1200. Seems to be OK with the bdshot FW and Dshot150 with my ESC (Aikon AK32PINV2 with 32.7). Lot of variables hereâŚ
Strange. But perhaps this gives me some data to go on. I had similar issues on the Beast H7 but no way to get a trace to see what was going on the wire. Iâll see if I can reproduce this behaviour.
Hi @andyp1per Could I ask a favor? Include the IMU Temp comp in your BDshot build for the Kakute F7-Mini? Iâm experimenting with that with the Matek H743 and itâs looking good. That one BDshot isnât working but on this FC it is.
the default KakuteF7Mini build includes BDShot so you can just download one from the firmware server
Cool, I didnât realize that. Thanks!!
Now I realize it looks like this is feature limited out of 1Mb boards. Well, at least I learned BDshot is a normal build
No - most boards you have to select the -bdshot build in order to get bdshot. My patch to do this was recently merged so you can now find them on the firmware server, e.g. https://firmware.ardupilot.org/Copter/latest/MatekH743-bdshot
I have spent some time testing the Matek board with BLHeli32 and BLHeli_s with 32.7 - all works fine as far as I can tell. There is no later version than 32.7 and that works fine for me. One thing to note - you must turn off SERVO_BLH_DEBUG. Neither pass-through nor bdshot will work properly if you have this on - both are very timing sensitive and turning on debug interferes with this.
Yes, got that.
Passthru doesnât work for me with a Matek H743-Mini and the Aikon 4in 1 I have. Flash to Betaflight and it does. I just did this again to check out some new ESC features and back to Arducopter now. No go there. But itâs configured and flying so no worries.
Ah thatâs a shame. I would probably have to get both of those to diagnose further, itâs almost certainly timing related. What dshot speed are you using? I only tried Dshot600.
Hi @andyp1per is it OK to use bidir Dshot with Dshot600?
As I said above With MatekH743-bdshot and and my Blheli32 ESC (HAKRC-35A-BLheli-32) if I set DShot150 or DShot300 motors doesnât spin an arming (almost never).
I found a scheme, I donât know if could be of help, anyway:
if I boot with DShot300 doesnât work, if I boot with Dshot600 then arm / disarm, set DShot300 and reboot it works.
I do all my testing with dshot600 so should be fine. Iâll have another go with the Matek with Dshot150 to see if I can spot anything.
In the interests of transparency I should point out that I am doing my testing with https://github.com/ArduPilot/ardupilot/pull/15984 as without it I get an immediate watchdog on this board if I try and calibrate accels. Might be worth trying as with that patch you get much more predictable dshot output.
OK Thanks, I will try that PR. Is it better to apply the PR to actual master or use your small-copter-4.1 branch (i see now that it include that PR)?
They are almost identical, so doesnât really matter
1200 now but I started at 300 and worked up as I had no previous application beyond 300. I did take the opportunity to update the ESC firmware to 32.7.4 and enabled variable PWM. Nothing noticeable of course but it flies.