Sbus problem with Pixhawk and firmware 3.1.1

Configuration :
Radio FX40 Futaba
Receiver R6208SB (sbus not sbus2 the receiver and radio are linked and I checked that it is working with a digital servo on output)
pixhawk with last firmware 3.1.1 uploaded february the 8th with Mission planner 1.2.95 build 1.1.5150.11972

I don’t get any signal in Mission planner radio calibration.

I previously used a spektrum receiver with DX6I which worked fine but only 3 flight modes.

With this futaba and receiver I get no signal at all. My radio change goal was to have more flight modes enabled.

I did read the previous messages on same subject (upload last firmware, clear the sd card …) but it still does not work.

Thanks for your help.

Hi jps31,

Are you connecting to RC IN? SBUS is an output.

copter.ardupilot.com/wiki/common … _RC_inputs

Thanks for your answer.
I missed this page.
It is OK now.

BR