Skyzone F405 FC with R-XSR Access/F.Port issue - Receiver Tab

[m4R-T1n]

hello,
i have this FC and receiver flashed with the latest FW and try to set up f.port connection.
receiver is bind
Uninverted smartport pad to TX3 is connected
UART3 is set to SerialRX
Receiver type is set to Serial based and protocol is set to F.Port.
telemetry is activated
halfduplex is ON
Inversion is OFF
there are just the 2 sensors discovered from the receiver.
also the colored channel bars are not there ??? they are empty ^^
if i swith to sbus the colored bars are back (not working for sure).
also tried different settings but i think it should work this way,
is there something i forgot? (and rxsr led is constand blue)
Thank you

[klutvott123]

Fport relies on smartport for telemetry, so in the configurator firmware flasher you need to select smartport as the telemetry protocol.

[klutvott123]

Then I don't know what's wrong. If you have it setup like described here https://github.com/betaflight/betaflight/wiki/The-FrSky-FPort-Protocol, and your wiring is correct, it should work.

I tried Fport just a couple of days ago, and it worked fine here so I'm pretty sure the Betaflight side of things are working as they should.
It's possible that there are bugs in frskys access fport firmware. For example there are bugs in the latest accst fport firmware that prevents it from working properly with betaflight.

[m4R-T1n]

ok i flashed the FC with the latest 4.4.0 custom FW with F.Port protocol and Smartport telemetry selected. badly no luck. flashed the last stable 4.3.2 release. stick movement and telemetry sensors are working after setting halfduplex to on. so have to be an 4.4.0 FW issue.

[klutvott123]

I tried it again with the latest master and another flight controller. Works fine here. I'll look into it some more later to see if I can reproduce.

[m4R-T1n]

thats great, thnks for the help

[klutvott123]

Tested again. r-xsr with uninverted smartport wired to TX4 on a ff fortini f4 with stm32f405. Using the latest BF master with

serialrx_inverted = OFF
serialrx_halfduplex = ON

Works just fine. Please try it again, and make sure to do a full chip erase when flashing.