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AP_WindVane: check for valid analog pins

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Iampete1 2021-09-22 20:51:03 +01:00 committed by Andrew Tridgell
parent e5ae023be2
commit f50326c154
2 changed files with 12 additions and 3 deletions
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5
libraries/AP_WindVane/AP_WindVane_Analog.cpp
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@ -26,7 +26,10 @@ AP_WindVane_Analog::AP_WindVane_Analog(AP_WindVane &frontend) :
void AP_WindVane_Analog::update_direction()
{
_dir_analog_source->set_pin(_frontend._dir_analog_pin);
if (!_dir_analog_source->set_pin(_frontend._dir_analog_pin)) {
// pin invalid, don't have health monitoring to report yet
return;
}
_current_analog_voltage = _dir_analog_source->voltage_latest();
const float voltage_ratio = linear_interpolate(0.0f, 1.0f, _current_analog_voltage, _frontend._dir_analog_volt_min, _frontend._dir_analog_volt_max);

10
libraries/AP_WindVane/AP_WindVane_ModernDevice.cpp
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@ -32,14 +32,20 @@ void AP_WindVane_ModernDevice::update_speed()
// only read temp pin if defined, sensor will do OK assuming constant temp
float temp_ambient = 28.0f; // equations were generated at this temp in above data sheet
if (is_positive(_frontend._speed_sensor_temp_pin.get())) {
_temp_analog_source->set_pin(_frontend._speed_sensor_temp_pin.get());
if (!_temp_analog_source->set_pin(_frontend._speed_sensor_temp_pin.get())) {
// pin invalid, don't have health monitoring to report yet
return;
}
analog_voltage = _temp_analog_source->voltage_average();
temp_ambient = (analog_voltage - 0.4f) / 0.0195f; // deg C
// constrain to reasonable range to avoid deviating from calibration too much and potential divide by zero
temp_ambient = constrain_float(temp_ambient, 10.0f, 40.0f);
}
_speed_analog_source->set_pin(_frontend._speed_sensor_speed_pin.get());
if (!_speed_analog_source->set_pin(_frontend._speed_sensor_speed_pin.get())) {
// pin invalid, don't have health monitoring to report yet
return;
}
_current_analog_voltage = _speed_analog_source->voltage_average();
// apply voltage offset and make sure not negative