I have been flying my APM miniTalon succesfully for a long time on AP3.0.1....recently I had to replace the APM and reflash....unfortunately, MP will only load 3.4 firmware....the problem is that with this firmware MAG_ENABLE is not longer maintained during power cycles....everything else is....but MAG_ENABLE is always set to 0 on power down!
I have to dynamically enable the compass on each power up via MAVLINK!
I really would like to go back to my tried and true 3.0.1 or even 2.78b...I really want my compass!
but I see now way (unless I compile it myself, which I cant do) to do this (revert to older firmware) with the current MP...
any help would be appreciated!