Copter: extend RCMap to cover at least channel 6 (maybe all channels up to 8)

[rmackay9]

Some transmitters have limits on what mixing can be done on some channels. Request from Dragu MIhai.

This would also allow trad heli users to get by with a 6 or 7 channel transmitter instead of 8.

[WickedShell]

@rmackay9 I don't know enough about copters, but isn't this covered with the servo changes that went in? I thought that got all vehicles arbitrary channel remapping...

[rmackay9]

@WickedShell, I don't think so. Tridge's servo changes separated min/max for input/output but the improvements that adds are mostly on the output side of things.

[auturgy]

@peterbarker can this be closed now?

[peterbarker]

On Tue, 15 May 2018, auturgy wrote: @peterbarker can this be closed now?

Not until the channel-option patch stuff is merged.

[amilcarlucas]

Channel option patch is merged now AFAIK. Can this be closed now ?

[peterbarker]

@amilcarlucas I'm actually a bit confused by it, actually. rcmap says "to find the throttle look at channel 3".

e.g.
param set RCMAP_THROTTLE 3

So extending it to higher channels doesn't make sense. Now adding more options in there (RCMAP_XYZZY) might be what it's getting at. That wouldn't be covered by the channel-options patch.

My "eliminate RCMAP" PR #8307 would definitely cover whatever this issue about :-)

[WickedShell]

The point of the issue (I believe) is that copter has those switch functions for channel 6/7/8 such as motor interlock/autotune and the user wants to map that onto a different channel from their transmitter.

[rmackay9]

I don't mind if this is left open until #8307 goes in or is closed now.. one way or the other we're definitely not going to extend RCMAP..

[auturgy]

This is overtaken by events. The specific solution has not been implemented but the problem is solved.