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motors not spinning using dshot
#1
Ні!

I recently bought a "GOKU F7 MINI V2 40A BLS 20X20 STACK FLIGHT CONTROLLER"
https://flywoo.net/products/goku-f7-mini...controller
It's a stack with a 4in1 ESC:
https://flywoo.net/products/goku-406s-8bi-2-6s-
esc-20×20
purchased as a kit

The ESC came with bluejay installed, I also tried BL HELI S since it supports this.
But I can't get the motors to spin, not in betaflight, not in the blheli config. Only way the motors spin is in any other protocol than DSHOT.

When I connect the radio and arm the drone it says
"MOTOR_PROTOCOL" in betaflight as the reason why it won't arm. No motor protocol selected, or something along those lines. Even though I have DSHOT selected.
With multishot they move. like shit. but they move.

Could anyone help me out? just tell me what information you need and i'll get it.

Thanks!
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#2
Are you running BF 4.5.0? There seems to be an issue with this BF version and the F722 processor preventing motors from spinning
https://github.com/betaflight/betaflight/issues/13598

This issue is supposed to be fixed in 4.5.1 and not existing in 4.4 or previous version. Otherwise you can try setting DSHOT_BITBANG = OFF and see if that works for you, although not sure if that will affect bi-directional dshot or not.
[-] The following 1 user Likes mstc's post:
  • V-22
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#3
(28-Jun-2024, 09:32 PM)mstc Wrote: Are you running BF 4.5.0? There seems to be an issue with this BF version and the F722 processor preventing motors from spinning
https://github.com/betaflight/betaflight/issues/13598

This issue is supposed to be fixed in 4.5.1 and not existing in 4.4 or previous version. Otherwise you can try setting DSHOT_BITBANG = OFF and see if that works for you, although not sure if that will affect bi-directional dshot or not.

This is probably the issue.

@nckhvlk I would flash back to Bluejay (48kHz PWM) and then make sure both dshot bitbang and bidirectional dshot are enabled in Betaflight:
Code:
set dshot_bitbang = ON
set dshot_bidir = ON
save

You should also be using DSHOT300 and a 4kHz PID loop rate.
[-] The following 1 user Likes V-22's post:
  • hugnosed_bat
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