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Magnetometer calibration fixed

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This commit is contained in:
Julian Oes
2012-09-27 18:43:04 +02:00
parent 2c5c314105
commit d206327541
1 changed files with 15 additions and 40 deletions
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apps/commander/commander.c
+15 -40
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@@ -256,22 +256,6 @@ int trigger_audio_alarm(uint8_t old_mode, uint8_t old_state, uint8_t new_mode, u
return 0;
}
static void cal_bsort(float a[], int n)
{
int i,j,t;
for(i=0;i<n-1;i++)
{
for(j=0;j<n-i-1;j++)
{
if(a[j]>a[j+1]) {
t=a[j];
a[j]=a[j+1];
a[j+1]=t;
}
}
}
}
static const char *parameter_file = "/eeprom/parameters";
static int pm_save_eeprom(bool only_unsaved)
@@ -312,8 +296,8 @@ void do_mag_calibration(int status_pub, struct vehicle_status_s *status)
const uint64_t calibration_interval_us = 45 * 1000000;
unsigned int calibration_counter = 0;
float mag_max[3] = {0, 0, 0};
float mag_min[3] = {0, 0, 0};
float mag_max[3] = {-FLT_MAX, -FLT_MAX, -FLT_MAX};
float mag_min[3] = {FLT_MAX, FLT_MAX, FLT_MAX};
int fd = open(MAG_DEVICE_PATH, 0);
struct mag_scale mscale_null = {
@@ -340,25 +324,25 @@ void do_mag_calibration(int status_pub, struct vehicle_status_s *status)
orb_copy(ORB_ID(sensor_combined), sub_sensor_combined, &raw);
/* get min/max values */
if (raw.magnetometer_raw[0] < mag_min[0]) {
mag_min[0] = raw.magnetometer_raw[0];
if (raw.magnetometer_ga[0] < mag_min[0]) {
mag_min[0] = raw.magnetometer_ga[0];
}
else if (raw.magnetometer_raw[0] > mag_max[0]) {
mag_max[0] = raw.magnetometer_raw[0];
else if (raw.magnetometer_ga[0] > mag_max[0]) {
mag_max[0] = raw.magnetometer_ga[0];
}
if (raw.magnetometer_raw[1] < mag_min[1]) {
mag_min[1] = raw.magnetometer_raw[1];
if (raw.magnetometer_ga[1] < mag_min[1]) {
mag_min[1] = raw.magnetometer_ga[1];
}
else if (raw.magnetometer_raw[1] > mag_max[1]) {
mag_max[1] = raw.magnetometer_raw[1];
else if (raw.magnetometer_ga[1] > mag_max[1]) {
mag_max[1] = raw.magnetometer_ga[1];
}
if (raw.magnetometer_raw[2] < mag_min[2]) {
mag_min[2] = raw.magnetometer_raw[2];
if (raw.magnetometer_ga[2] < mag_min[2]) {
mag_min[2] = raw.magnetometer_ga[2];
}
else if (raw.magnetometer_raw[2] > mag_max[2]) {
mag_max[2] = raw.magnetometer_raw[2];
else if (raw.magnetometer_ga[2] > mag_max[2]) {
mag_max[2] = raw.magnetometer_ga[2];
}
calibration_counter++;
@@ -387,20 +371,11 @@ void do_mag_calibration(int status_pub, struct vehicle_status_s *status)
* offset = (max + min) / 2.0f
*/
printf("max 0: %f\n",mag_max[0]);
printf("max 1: %f\n",mag_max[1]);
printf("max 2: %f\n",mag_max[2]);
printf("min 0: %f\n",mag_min[0]);
printf("min 1: %f\n",mag_min[1]);
printf("min 2: %f\n",mag_min[2]);
mag_offset[0] = (mag_max[0] + mag_min[0]) / 2.0f;
mag_offset[1] = (mag_max[1] + mag_min[1]) / 2.0f;
mag_offset[2] = (mag_max[2] + mag_min[2]) / 2.0f;
printf("mag off 0: %f\n",mag_offset[0]);
printf("mag off 1: %f\n",mag_offset[1]);
printf("mag off 2: %f\n",mag_offset[2]);
printf("mag off x: %4.4f, y: %4.4f, z: %4.4f\n",(double)mag_offset[0],(double)mag_offset[0],(double)mag_offset[2]);
/* announce and set new offset */