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AP_Airspeed: analog: check valid pin

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Iampete1 2021-09-22 20:45:47 +01:00 committed by Andrew Tridgell
parent d4d78720ca
commit 0731af751a
1 changed files with 2 additions and 3 deletions
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5
libraries/AP_Airspeed/AP_Airspeed_analog.cpp
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@ -41,11 +41,10 @@ bool AP_Airspeed_Analog::init()
// read the airspeed sensor
bool AP_Airspeed_Analog::get_differential_pressure(float &pressure)
{
if (_source == nullptr) {
// allow pin to change
if (_source == nullptr || !_source->set_pin(get_pin())) {
return false;
}
// allow pin to change
_source->set_pin(get_pin());
pressure = _source->voltage_average_ratiometric() * VOLTS_TO_PASCAL / get_psi_range();
return true;
}