Pixhawk 4 mini radio input problems?

[tridge]

I’ve found the bug and have put a link to the fix and a workaround here:

SBUS RC receivers on Pixhawk4 mini

I’ve done a fix for this issue here: @rmackay9 is considering the fix for the next stable. I don’t know if it will go into 4.1.3 or not. Meanwhile, there is an easy workaround. If you set the SERIAL4_OPTIONS parameter to the right value then the bug doesn’t occur. For inverted protocols (like SBUS or FPort) then you need to set SERIAL4_OPTIONS to 9. The default value on this board is 8. The problem was caused by the value of 8, which does not include the invert option, being applied again af…