[Paparazzi-devel] Altitude calculation

[Loic Drumettaz]

Hello,

Could someone explain the meaning of "BARO_SENS" and "UNTILT_ACCEL" in the airframe file? I have a Lisa M board and I can't obtain the right altitude (the value rises when i move the board down, while the raw value of the pressure goes up). 

I tried to find where the altitude is calculated in the code, i have found the absolute pressure calculation in "baro_board.h," but i can't find altitude calculation.

Thanks

Loïc