Since Betaflight 3.x.x there is possibility to remap your motor outputs. This allows you to use different pins in case some of them are broken.
There are few tutorials on youtube how to remap your outputs, but I found only one, which takes into account DSHOT.
Problem with remapping with DSHOT is that, not every flight controller output can be used as a DSHOT output.
But how to find which output can be used for DSHOT?
I'm using SPRACINGF3EVO which has 8 motor outputs, so I selected "Octo Flat +"
You should get something as follows, with importrant parts in BOLD.
There are few tutorials on youtube how to remap your outputs, but I found only one, which takes into account DSHOT.
Problem with remapping with DSHOT is that, not every flight controller output can be used as a DSHOT output.
But how to find which output can be used for DSHOT?
First, if you already made some changes to resources in CLI, revert them or re-flash your flight controller.
Depending on your board, select the quadcopter type with same amount of motors as yours.I'm using SPRACINGF3EVO which has 8 motor outputs, so I selected "Octo Flat +"
Go to the CLI and run command "resource" and then "resource list"
Copy and whole output to the notepad
Copy and whole output to the notepad
You should get something as follows, with importrant parts in BOLD.
# resource resource BEEPER 1 C15 resource MOTOR 1 A00 resource MOTOR 2 A01 resource MOTOR 3 A02 resource MOTOR 4 A03 resource MOTOR 5 A06 resource MOTOR 6 A07 resource MOTOR 7 B00 resource MOTOR 8 B01 resource MOTOR 9 B10 resource MOTOR 10 B11 resource PPM 1 A15 resource LED_STRIP 1 A08 resource SERIAL_TX 1 A09 resource SERIAL_TX 2 A14 resource SERIAL_TX 3 B10 resource SERIAL_RX 1 A10 resource SERIAL_RX 2 A15 resource SERIAL_RX 3 B11 # resource list IO A00: MOTOR 1 A01: MOTOR 2 A02: MOTOR 3 A03: MOTOR 4 A04: FREE A05: FREE .... DMA: DMA1 Channel 1: MOTOR 3 DMA1 Channel 2: MOTOR 7 DMA1 Channel 3: MOTOR 8 DMA1 Channel 4: FREE DMA1 Channel 5: MOTOR 1 DMA1 Channel 6: MOTOR 5 DMA1 Channel 7: MOTOR 2 DMA2 Channel 1: FREE DMA2 Channel 2: FREE DMA2 Channel 3: FREE DMA2 Channel 4: FREE DMA2 Channel 5: FREE
Last part with the DMA... tells us, which MOTOR outputs can be used for DSHOT.
For my F3 EVO it's motor output 1,2,3,5,7 and 8.
My board had pins 1 and 2 broken, so I had to use 3,5,7 and 8.
Easiest way to map all motors correctly is to first free our DMA capable outputs (3,5,7 and 8).
You can do this with command:
resource MOTOR 3 none
resource MOTOR 3 none
resource MOTOR 5 none
resource MOTOR 7 none
resource MOTOR 8 none
Following image shows default motor numbering for betaflight.
Let's start with MOTOR 1. Check to which pin is this motor soldered to.
If you soldered that motor to ouput number 7, you have to go back to your notepad and look for the first part of the output for the
MOTOR 7 - I know, this is little bit confusing.
For me it was: resource MOTOR 7 B00
In this case we're looking for the last code - B00 which is identifier of the output 7.
To assign this output run cli command
resource MOTOR 1 B00
Repeat this for all 4 motors and then enter save, reboot the board and you're all set!
What actually is this MOTOR all about? Also share the basic introduction of about this, because this is something new to me. Thank you.
ReplyDelete