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Added GYRO calibration detection into the adc_callback() routine - to pass raw values when calibrating the gyro's.

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git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2780 ebee16cc-31ac-478f-84a7-5cbb03baadba
This commit is contained in:
pip 2011-02-13 20:04:25 +00:00 committed by pip
parent d0d5d2db4e
commit 74502852c3
1 changed files with 39 additions and 11 deletions
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30
flight/AHRS/ahrs.c
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@ -691,16 +691,31 @@ void adc_callback(float * downsampled_data)
AHRSSettingsData settings;
AHRSSettingsGet(&settings);
bool gyro_calib = // TRUE if we calibrating the gyro's (biases = 0 and scales = 1)
abs(gyro_data.calibration.bias[0]) < 0.0001f && abs(gyro_data.calibration.scale[0] - 1) < 0.0001f &&
abs(gyro_data.calibration.bias[1]) < 0.0001f && abs(gyro_data.calibration.scale[1] - 1) < 0.0001f &&
abs(gyro_data.calibration.bias[2]) < 0.0001f && abs(gyro_data.calibration.scale[2] - 1) < 0.0001f;
float accel[3], gyro[3];
// Accel data is (y,x,z) in first third and fifth byte. Convert to m/s
accel[0] = (downsampled_data[2] * accel_data.calibration.scale[0]) + accel_data.calibration.bias[0];
accel[1] = (downsampled_data[0] * accel_data.calibration.scale[1]) + accel_data.calibration.bias[1];
accel[2] = (downsampled_data[4] * accel_data.calibration.scale[2]) + accel_data.calibration.bias[2];
// Gyro data is (x,y,z) in second, fifth and seventh byte. Convert to rad/s
if (!gyro_calib)
{ // not calibrating gyro's
gyro[0] = ( ( downsampled_data[1] + gyro_data.calibration.tempcompfactor[0] * downsampled_data[6] ) * gyro_data.calibration.scale[0]) + gyro_data.calibration.bias[0];
gyro[1] = ( ( downsampled_data[3] + gyro_data.calibration.tempcompfactor[1] * downsampled_data[6] ) * gyro_data.calibration.scale[1]) + gyro_data.calibration.bias[1];
gyro[2] = ( ( downsampled_data[5] + gyro_data.calibration.tempcompfactor[2] * downsampled_data[7] ) * gyro_data.calibration.scale[2]) + gyro_data.calibration.bias[2];
}
else
{ // calibrating gyro's .. feed the raw values straight thru
gyro[0] = downsampled_data[1];
gyro[1] = downsampled_data[3];
gyro[2] = downsampled_data[5];
}
#if 0
static float gravity_tracking[3] = {0,0,0};
@ -735,9 +750,18 @@ void adc_callback(float * downsampled_data)
raw.gyrotemp[0] = downsampled_data[6];
raw.gyrotemp[1] = downsampled_data[7];
if (!gyro_calib)
{ // not calibrating gyro's
raw.gyros[0] = gyro[0] * RAD_TO_DEG;
raw.gyros[1] = gyro[1] * RAD_TO_DEG;
raw.gyros[2] = gyro[2] * RAD_TO_DEG;
}
else
{ // calibrating gyro's .. feed the raw values straight thru
raw.gyros[0] = gyro[0];
raw.gyros[1] = gyro[1];
raw.gyros[2] = gyro[2];
}
raw.accels[0] = accel[0];
raw.accels[1] = accel[1];
@ -747,10 +771,14 @@ void adc_callback(float * downsampled_data)
raw.magnetometers[1] = mag_data.scaled.axis[1];
raw.magnetometers[2] = mag_data.scaled.axis[2];
if(settings.BiasCorrectedRaw == AHRSSETTINGS_BIASCORRECTEDRAW_TRUE) {
if (settings.BiasCorrectedRaw == AHRSSETTINGS_BIASCORRECTEDRAW_TRUE)
{
if (!gyro_calib)
{ // not calibrating gyro's
raw.gyros[0] -= Nav.gyro_bias[0] * RAD_TO_DEG;
raw.gyros[1] -= Nav.gyro_bias[1] * RAD_TO_DEG;
raw.gyros[2] -= Nav.gyro_bias[2] * RAD_TO_DEG;
}
raw.accels[0] -= Nav.accel_bias[0];
raw.accels[1] -= Nav.accel_bias[1];
raw.accels[2] -= Nav.accel_bias[2];