First problem, write or read parameter in the board:
I am using APM 1.0.84. noticed that when I set parameters (PID rate for example), then I fly, then I whant to modify them a little bit,.
I do not get the parameter I set in the copter , for example I set 0.11, and I get 0.109. Theyr might be a rounding probleme either when writing parameters in the Board, or when reading them with APM.
I noticed in APM 1.0.82 (maybe corrected now), when I save a parameters file and later I load it again Some parameters are completely different.