Matek f405 wing ardupilot crossfire nano rx connection

ArduPlane Plane 4.3
1

i have a matek f405 wing flight control board. when i make sbus connection radio works but i can’t receive telemetry data.

i have a crossfire nano rx receiver and when i connect it as rx tx (uart1) the radio does not work.

How do I connect this receiver to receive telemetry and operate the radio and what are its settings?

2

From the Matek website:

CRSF

If using CRSF receiver on this FC with ardupilot firmware,  pls use Serial1/USART1 which has DMA enabled.
serial1_protocol = 23
SERIAL1_OPTIONS  = 0

You can use CRSF, you don’t need to use sbus.

https://ardupilot.org/copter/docs/common-tbs-rc.html#team-black-sheep-rc-systems

http://www.mateksys.com/?portfolio=f405-wing#tab-id-6