rooty/LibrePilot
1
0
Fork 0
mirror of https://bitbucket.org/librepilot/librepilot.git synced 2024-12-04 12:24:11 +01:00
Code Issues Releases Activity
4e59e697af
LibrePilot/flight/INS/ins.c

800 lines
24 KiB
C
Raw Blame History

/**
******************************************************************************
* @addtogroup INS INS
* @brief The INS Modules perform
*
* @{
* @addtogroup INS_Main
* @brief Main function which does the hardware dependent stuff
* @{
*
*
* @file ins.c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2011.
* @brief INSGPS Test Program
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
TODO:
BMP085 - Pressure
IMU3000 interrupt
BMA180 interrupt
*/
#define timer_rate() 100000
#define timer_count() 1
/* OpenPilot Includes */
#include "ins.h"
#include "pios.h"
#include "ahrs_spi_comm.h"
#include "insgps.h"
#include "CoordinateConversions.h"
#include <stdbool.h>
#include "fifo_buffer.h"
#include "insgps_helper.h"
#define DEG_TO_RAD (M_PI / 180.0)
#define RAD_TO_DEG (180.0 / M_PI)
#define INSGPS_MAGLEN 1000
#define INSGPS_MAGTOL 0.5 /* error in magnetic vector length to use */
#define GYRO_OOB(x) ((x > (1000 * DEG_TO_RAD)) || (x < (-1000 * DEG_TO_RAD)))
#define ACCEL_OOB(x) (((x > 12*9.81) || (x < -12*9.81)))
#define ISNAN(x) (x != x)
// down-sampled data index
volatile int8_t ahrs_algorithm;
/* Data accessors */
void adc_callback(float *);
void get_mag_data();
void get_baro_data();
void get_accel_gyro_data();
void reset_values();
void calibrate_sensors(void);
/* Communication functions */
void send_calibration(void);
void send_attitude(void);
void send_velocity(void);
void send_position(void);
void homelocation_callback(AhrsObjHandle obj);
void calibration_callback(AhrsObjHandle obj);
void settings_callback(AhrsObjHandle obj);
void affine_rotate(float scale[3][4], float rotation[3]);
void calibration(float result[3], float scale[3][4], float arg[3]);
extern void PIOS_Board_Init(void);
static void panic(uint32_t blinks);
void simple_update();
/* Bootloader related functions and var*/
void firmwareiapobj_callback(AhrsObjHandle obj);
volatile uint8_t reset_count=0;
/**
* @addtogroup INS_Global_Data INS Global Data
* @{
* Public data. Used by both EKF and the sender
*/
//! Contains the data from the mag sensor chip
struct mag_sensor mag_data;
//! Contains the data from the accelerometer
struct accel_sensor accel_data;
//! Contains the data from the gyro
struct gyro_sensor gyro_data;
//! Conains the current estimate of the attitude
struct attitude_solution attitude_data;
//! Contains data from the altitude sensor
struct altitude_sensor altitude_data;
//! Contains data from the GPS (via the SPI link)
struct gps_sensor gps_data;
static float mag_len = 0;
typedef enum { INS_IDLE, INS_DATA_READY, INS_PROCESSING } states;
/**
* @}
*/
/**
* @brief INS Main function
*/
uint32_t total_conversion_blocks;
float pressure, altitude;
int32_t dr;
int32_t sclk, sclk_prev;
int32_t sclk_count;
uint32_t loop_time;
int main()
{
gps_data.quality = -1;
static int8_t last_ahrs_algorithm;
ahrs_algorithm = AHRSSETTINGS_ALGORITHM_SIMPLE;
reset_values();
PIOS_Board_Init();
PIOS_LED_Off(LED1);
PIOS_LED_On(LED2);
// Sensors need a second to start
PIOS_DELAY_WaitmS(100);
// Sensor test
if(PIOS_IMU3000_Test() != 0)
panic(1);
if(PIOS_BMA180_Test() != 0)
panic(2);
if(PIOS_HMC5883_Test() != 0)
panic(3);
if(PIOS_BMP085_Test() != 0)
panic(4);
PIOS_LED_On(LED1);
PIOS_LED_Off(LED2);
// Kickstart BMP085 measurements until driver improved
PIOS_BMP085_StartADC(TemperatureConv);
// Flash warning light while trying to connect
uint32_t time_val1 = PIOS_DELAY_GetRaw();
uint32_t time_val2;
uint32_t ms_count = 0;
while(!AhrsLinkReady()) {
AhrsPoll();
if(PIOS_DELAY_DiffuS(time_val1) > 1000) {
ms_count += 1;
time_val1 = PIOS_DELAY_GetRaw();
}
if(ms_count > 100) {
PIOS_LED_Toggle(LED2);
ms_count = 0;
}
}
PIOS_LED_Off(LED2);
/* we didn't connect the callbacks before because we have to wait
for all data to be up to date before doing anything*/
AHRSCalibrationConnectCallback(calibration_callback);
AHRSSettingsConnectCallback(settings_callback);
HomeLocationConnectCallback(homelocation_callback);
FirmwareIAPObjConnectCallback(firmwareiapobj_callback);
calibration_callback(AHRSCalibrationHandle()); //force an update
/******************* Main EKF loop ****************************/
while(1) {
AhrsPoll();
AhrsStatusData status;
AhrsStatusGet(&status);
// Alive signal
if ((total_conversion_blocks++ % 100) == 0)
PIOS_LED_Toggle(LED1);
loop_time = PIOS_DELAY_DiffuS(time_val1);
time_val1 = PIOS_DELAY_GetRaw();
get_accel_gyro_data(); // This function blocks till data avilable
get_mag_data();
get_baro_data();
status.IdleTimePerCycle = PIOS_DELAY_DiffuS(time_val1);
if(ISNAN(accel_data.filtered.x + accel_data.filtered.y + accel_data.filtered.z) ||
ISNAN(gyro_data.filtered.x + gyro_data.filtered.y + gyro_data.filtered.z) ||
ACCEL_OOB(accel_data.filtered.x + accel_data.filtered.y + accel_data.filtered.z) ||
GYRO_OOB(gyro_data.filtered.x + gyro_data.filtered.y + gyro_data.filtered.z)) {
// If any values are NaN or huge don't update
//TODO: add field to ahrs status to track number of these events
continue;
}
//print_ekf_binary();
/* If algorithm changed reinit. This could go in callback but wouldn't be synchronous */
if (ahrs_algorithm != last_ahrs_algorithm)
ins_init_algorithm();
last_ahrs_algorithm = ahrs_algorithm;
time_val2 = PIOS_DELAY_GetRaw();
switch(ahrs_algorithm) {
case AHRSSETTINGS_ALGORITHM_SIMPLE:
simple_update();
break;
case AHRSSETTINGS_ALGORITHM_INSGPS_OUTDOOR:
ins_outdoor_update();
break;
case AHRSSETTINGS_ALGORITHM_INSGPS_INDOOR:
case AHRSSETTINGS_ALGORITHM_INSGPS_INDOOR_NOMAG:
ins_indoor_update();
break;
}
status.RunningTimePerCycle = PIOS_DELAY_DiffuS(time_val2);
AhrsStatusSet(&status);
}
return 0;
}
/**
* @brief Simple update using just mag and accel. Yaw biased and big attitude changes.
*/
void simple_update() {
float q[4];
float rpy[3];
/***************** SIMPLE ATTITUDE FROM NORTH AND ACCEL ************/
/* Very simple computation of the heading and attitude from accel. */
rpy[2] = atan2((mag_data.raw.axis[1]), (-1 * mag_data.raw.axis[0])) * RAD_TO_DEG;
rpy[1] = atan2(accel_data.filtered.x, accel_data.filtered.z) * RAD_TO_DEG;
rpy[0] = atan2(accel_data.filtered.y, accel_data.filtered.z) * RAD_TO_DEG;
RPY2Quaternion(rpy, q);
attitude_data.quaternion.q1 = q[0];
attitude_data.quaternion.q2 = q[1];
attitude_data.quaternion.q3 = q[2];
attitude_data.quaternion.q4 = q[3];
send_attitude();
}
/**
* @brief Output all the important inputs and states of the ekf through serial port
*/
#ifdef DUMP_EKF
extern float **P, *X; // covariance matrix and state vector
void print_ekf_binary()
{
uint16_t states = ins_get_num_states();
uint8_t framing[16] = { 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 };
// Dump raw buffer
PIOS_COM_SendBuffer(PIOS_COM_AUX, &framing[0], 16); // framing header (1:16)
PIOS_COM_SendBuffer(PIOS_COM_AUX, (uint8_t *) & total_conversion_blocks, sizeof(total_conversion_blocks)); // dump block number (17:20)
PIOS_COM_SendBufferNonBlocking(PIOS_COM_AUX, (uint8_t *) & accel_data.filtered.x, 4*3); // accel data (21:32)
PIOS_COM_SendBufferNonBlocking(PIOS_COM_AUX, (uint8_t *) & gyro_data.filtered.x, 4*3); // gyro data (33:44)
PIOS_COM_SendBuffer(PIOS_COM_AUX, (uint8_t *) & mag_data.updated, 1); // mag update (45)
PIOS_COM_SendBuffer(PIOS_COM_AUX, (uint8_t *) & mag_data.scaled.axis, 3*4); // mag data (46:57)
PIOS_COM_SendBuffer(PIOS_COM_AUX, (uint8_t *) & gps_data, sizeof(gps_data)); // gps data (58:85)
PIOS_COM_SendBuffer(PIOS_COM_AUX, (uint8_t *) & X, 4 * states); // X (86:149)
for(uint8_t i = 0; i < states; i++)
PIOS_COM_SendBuffer(PIOS_COM_AUX, (uint8_t *) &((*P)[i + i * states]), 4); // diag(P) (150:213)
PIOS_COM_SendBuffer(PIOS_COM_AUX, (uint8_t *) & altitude_data.altitude, 4); // BaroAlt (214:217)
PIOS_COM_SendBuffer(PIOS_COM_AUX, (uint8_t *) & baro_offset, 4); // baro_offset (218:221)
}
#else
void print_ekf_binary() {}
#endif
static void panic(uint32_t blinks)
{
int blinked = 0;
while(1) {
PIOS_LED_On(LED2);
PIOS_DELAY_WaitmS(200);
PIOS_LED_Off(LED2);
PIOS_DELAY_WaitmS(200);
blinked++;
if(blinked >= blinks) {
blinked = 0;
PIOS_DELAY_WaitmS(1000);
}
}
}
/**
* @brief Get the accel and gyro data from whichever source when available
*
* This function will act as the HAL for the new INS sensors
*/
uint32_t accel_samples;
uint32_t gyro_samples;
struct pios_bma180_data accel;
struct pios_imu3000_data gyro;
AttitudeRawData raw;
int32_t accel_accum[3] = {0, 0, 0};
int32_t gyro_accum[3] = {0,0,0};
float scaling;
void get_accel_gyro_data()
{
int32_t read_good;
int32_t count;
for (int i = 0; i < 3; i++) {
accel_accum[i] = 0;
gyro_accum[i] = 0;
}
accel_samples = 0;
gyro_samples = 0;
// Make sure we get one sample
count = 0;
while((read_good = PIOS_BMA180_ReadFifo(&accel)) != 0);
while(read_good == 0) {
count++;
accel_accum[0] += accel.x;
accel_accum[1] += accel.y;
accel_accum[2] += accel.z;
read_good = PIOS_BMA180_ReadFifo(&accel);
}
accel_samples = count;
// Make sure we get one sample
count = 0;
while((read_good = PIOS_IMU3000_ReadFifo(&gyro)) != 0);
while(read_good == 0) {
count++;
gyro_accum[0] += gyro.x;
gyro_accum[1] += gyro.y;
gyro_accum[2] += gyro.z;
read_good = PIOS_IMU3000_ReadFifo(&gyro);
}
gyro_samples = count;
// Not the swaping of channel orders
scaling = PIOS_BMA180_GetScale() / accel_samples;
accel_data.filtered.x = accel_accum[0] * scaling;
accel_data.filtered.y = -accel_accum[1] * scaling;
accel_data.filtered.z = -accel_accum[2] * scaling;
scaling = PIOS_IMU3000_GetScale() / gyro_samples;
gyro_data.filtered.x = -((float) gyro_accum[1]) * scaling;
gyro_data.filtered.y = -((float) gyro_accum[0]) * scaling;
gyro_data.filtered.z = -((float) gyro_accum[2]) * scaling;
raw.accels[0] = accel_data.filtered.x;
raw.accels[1] = accel_data.filtered.y;
raw.accels[2] = accel_data.filtered.z;
raw.gyros[0] = gyro_data.filtered.x * RAD_TO_DEG;
raw.gyros[1] = gyro_data.filtered.y * RAD_TO_DEG;
raw.gyros[2] = gyro_data.filtered.z * RAD_TO_DEG;
AHRSSettingsData settings;
AHRSSettingsGet(&settings);
if (settings.BiasCorrectedRaw == AHRSSETTINGS_BIASCORRECTEDRAW_TRUE)
{
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];
}
raw.magnetometers[0] = mag_data.scaled.axis[0];
raw.magnetometers[1] = mag_data.scaled.axis[1];
raw.magnetometers[2] = mag_data.scaled.axis[2];
AttitudeRawSet(&raw);
}
/**
* @brief Get the mag data from the I2C sensor and load into structure
* @return none
*
* This function also considers if the home location is set and has a valid
* magnetic field before updating the mag data to prevent data being used that
* cannot be interpreted. In addition the mag data is not used for the first
* five seconds to allow the filter to start to converge
*/
void get_mag_data()
{
// Get magnetic readings
// For now don't use mags until the magnetic field is set AND until 5 seconds
// after initialization otherwise it seems to have problems
// TODO: Follow up this initialization issue
HomeLocationData home;
HomeLocationGet(&home);
if (PIOS_HMC5883_NewDataAvailable()) {
PIOS_HMC5883_ReadMag(mag_data.raw.axis);
mag_data.scaled.axis[0] = -(mag_data.raw.axis[0] * mag_data.calibration.scale[0]) + mag_data.calibration.bias[0];
mag_data.scaled.axis[1] = -(mag_data.raw.axis[1] * mag_data.calibration.scale[1]) + mag_data.calibration.bias[1];
mag_data.scaled.axis[2] = -(mag_data.raw.axis[1] * mag_data.calibration.scale[2]) + mag_data.calibration.bias[2];
// Only use if magnetic length reasonable
float Blen = sqrt(pow(mag_data.scaled.axis[0],2) + pow(mag_data.scaled.axis[1],2) + pow(mag_data.scaled.axis[2],2));
mag_data.updated = (home.Set == HOMELOCATION_SET_TRUE) &&
((home.Be[0] != 0) || (home.Be[1] != 0) || (home.Be[2] != 0)) &&
((mag_data.raw.axis[0] != 0) || (mag_data.raw.axis[1] != 0) || (mag_data.raw.axis[2] != 0)) &&
((Blen < mag_len * (1 + INSGPS_MAGTOL)) && (Blen > mag_len * (1 - INSGPS_MAGTOL)));
}
}
/**
* @brief Get the barometer data
* @return none
*/
uint32_t baro_conversions = 0;
void get_baro_data()
{
int32_t retval = PIOS_BMP085_ReadADC();
if (retval == 0) { // Conversion completed
pressure = PIOS_BMP085_GetPressure();
altitude = 44330.0 * (1.0 - powf(pressure / BMP085_P0, (1.0 / 5.255)));
BaroAltitudeData data;
BaroAltitudeGet(&data);
data.Altitude = altitude;
data.Pressure = pressure / 1000.0f;
data.Temperature = PIOS_BMP085_GetTemperature() / 10.0f; // Convert to deg C
BaroAltitudeSet(&data);
if((baro_conversions++) % 2)
PIOS_BMP085_StartADC(PressureConv);
else
PIOS_BMP085_StartADC(TemperatureConv);
altitude_data.altitude = data.Altitude;
altitude_data.updated = true;
}
}
/**
* @brief Assumes board is not moving computes biases and variances of sensors
* @returns None
*
* All data is stored in global structures. This function should be called from OP when
* aircraft is in stable state and then the data stored to SD card.
*
* After this function the bias for each sensor will be the mean value. This doesn't make
* sense for the z accel so make sure 6 point calibration is also run and those values set
* after these read.
*/
#define NBIAS 100
#define NVAR 500
void calibrate_sensors()
{
int i,j;
float accel_bias[3] = {0, 0, 0};
float gyro_bias[3] = {0, 0, 0};
float mag_bias[3] = {0, 0, 0};
for (i = 0, j = 0; i < NBIAS; i++) {
get_accel_gyro_data();
gyro_bias[0] += gyro_data.filtered.x / NBIAS;
gyro_bias[1] += gyro_data.filtered.y / NBIAS;
gyro_bias[2] += gyro_data.filtered.z / NBIAS;
accel_bias[0] += accel_data.filtered.x / NBIAS;
accel_bias[1] += accel_data.filtered.y / NBIAS;
accel_bias[2] += accel_data.filtered.z / NBIAS;
#if defined(PIOS_INCLUDE_HMC5883) && defined(PIOS_INCLUDE_I2C)
if(PIOS_HMC5883_NewDataAvailable()) {
j ++;
PIOS_HMC5883_ReadMag(mag_data.raw.axis);
mag_data.scaled.axis[0] = (mag_data.raw.axis[0] * mag_data.calibration.scale[0]) + mag_data.calibration.bias[0];
mag_data.scaled.axis[1] = (mag_data.raw.axis[1] * mag_data.calibration.scale[1]) + mag_data.calibration.bias[1];
mag_data.scaled.axis[2] = (mag_data.raw.axis[2] * mag_data.calibration.scale[2]) + mag_data.calibration.bias[2];
mag_bias[0] += mag_data.scaled.axis[0];
mag_bias[1] += mag_data.scaled.axis[1];
mag_bias[2] += mag_data.scaled.axis[2];
}
#endif
}
mag_bias[0] /= j;
mag_bias[1] /= j;
mag_bias[2] /= j;
gyro_data.calibration.variance[0] = 0;
gyro_data.calibration.variance[1] = 0;
gyro_data.calibration.variance[2] = 0;
mag_data.calibration.variance[0] = 0;
mag_data.calibration.variance[1] = 0;
mag_data.calibration.variance[2] = 0;
accel_data.calibration.variance[0] = 0;
accel_data.calibration.variance[1] = 0;
accel_data.calibration.variance[2] = 0;
for (i = 0, j = 0; j < NVAR; j++) {
get_accel_gyro_data();
gyro_data.calibration.variance[0] += pow(gyro_data.filtered.x-gyro_bias[0],2) / NVAR;
gyro_data.calibration.variance[1] += pow(gyro_data.filtered.y-gyro_bias[1],2) / NVAR;
gyro_data.calibration.variance[2] += pow(gyro_data.filtered.z-gyro_bias[2],2) / NVAR;
accel_data.calibration.variance[0] += pow(accel_data.filtered.x-accel_bias[0],2) / NVAR;
accel_data.calibration.variance[1] += pow(accel_data.filtered.y-accel_bias[1],2) / NVAR;
accel_data.calibration.variance[2] += pow(accel_data.filtered.z-accel_bias[2],2) / NVAR;
#if defined(PIOS_INCLUDE_HMC5883) && defined(PIOS_INCLUDE_I2C)
if(PIOS_HMC5883_NewDataAvailable()) {
j ++;
PIOS_HMC5883_ReadMag(mag_data.raw.axis);
mag_data.scaled.axis[0] = (mag_data.raw.axis[0] * mag_data.calibration.scale[0]) + mag_data.calibration.bias[0];
mag_data.scaled.axis[1] = (mag_data.raw.axis[1] * mag_data.calibration.scale[1]) + mag_data.calibration.bias[1];
mag_data.scaled.axis[2] = (mag_data.raw.axis[2] * mag_data.calibration.scale[2]) + mag_data.calibration.bias[2];
mag_data.calibration.variance[0] += pow(mag_data.scaled.axis[0]-mag_bias[0],2);
mag_data.calibration.variance[1] += pow(mag_data.scaled.axis[1]-mag_bias[1],2);
mag_data.calibration.variance[2] += pow(mag_data.scaled.axis[2]-mag_bias[2],2);
}
#endif
}
mag_data.calibration.variance[0] /= j;
mag_data.calibration.variance[1] /= j;
mag_data.calibration.variance[2] /= j;
gyro_data.calibration.bias[0] -= gyro_bias[0];
gyro_data.calibration.bias[1] -= gyro_bias[1];
gyro_data.calibration.bias[2] -= gyro_bias[2];
// Approximately how long the EKF takes to update
PIOS_DELAY_WaituS(1500);
}
/**
* @brief Populate fields with initial values
*/
void reset_values()
{
accel_data.calibration.scale[0][1] = 0;
accel_data.calibration.scale[1][0] = 0;
accel_data.calibration.scale[0][2] = 0;
accel_data.calibration.scale[2][0] = 0;
accel_data.calibration.scale[1][2] = 0;
accel_data.calibration.scale[2][1] = 0;
accel_data.calibration.scale[0][0] = 0.0359;
accel_data.calibration.scale[1][1] = 0.0359;
accel_data.calibration.scale[2][2] = 0.0359;
accel_data.calibration.scale[0][3] = -73.5;
accel_data.calibration.scale[1][3] = -73.5;
accel_data.calibration.scale[2][3] = -73.5;
accel_data.calibration.variance[0] = 1e-4;
accel_data.calibration.variance[1] = 1e-4;
accel_data.calibration.variance[2] = 1e-4;
gyro_data.calibration.scale[0] = -0.014;
gyro_data.calibration.scale[1] = 0.014;
gyro_data.calibration.scale[2] = -0.014;
gyro_data.calibration.bias[0] = -24;
gyro_data.calibration.bias[1] = -24;
gyro_data.calibration.bias[2] = -24;
gyro_data.calibration.variance[0] = 1;
gyro_data.calibration.variance[1] = 1;
gyro_data.calibration.variance[2] = 1;
mag_data.calibration.scale[0] = 1;
mag_data.calibration.scale[1] = 1;
mag_data.calibration.scale[2] = 1;
mag_data.calibration.bias[0] = 0;
mag_data.calibration.bias[1] = 0;
mag_data.calibration.bias[2] = 0;
mag_data.calibration.variance[0] = 50;
mag_data.calibration.variance[1] = 50;
mag_data.calibration.variance[2] = 50;
ahrs_algorithm = AHRSSETTINGS_ALGORITHM_SIMPLE;
}
void send_attitude(void)
{
AttitudeActualData attitude;
AHRSSettingsData settings;
AHRSSettingsGet(&settings);
attitude.q1 = attitude_data.quaternion.q1;
attitude.q2 = attitude_data.quaternion.q2;
attitude.q3 = attitude_data.quaternion.q3;
attitude.q4 = attitude_data.quaternion.q4;
float rpy[3];
Quaternion2RPY(&attitude_data.quaternion.q1, rpy);
attitude.Roll = rpy[0] + settings.RollBias;
attitude.Pitch = rpy[1] + settings.PitchBias;
attitude.Yaw = rpy[2] + settings.YawBias;
if(attitude.Yaw > 360)
attitude.Yaw -= 360;
AttitudeActualSet(&attitude);
}
void send_velocity(void)
{
VelocityActualData velocityActual;
VelocityActualGet(&velocityActual);
// convert into cm
velocityActual.North = Nav.Vel[0] * 100;
velocityActual.East = Nav.Vel[1] * 100;
velocityActual.Down = Nav.Vel[2] * 100;
VelocityActualSet(&velocityActual);
}
void send_position(void)
{
PositionActualData positionActual;
PositionActualGet(&positionActual);
// convert into cm
positionActual.North = Nav.Pos[0] * 100;
positionActual.East = Nav.Pos[1] * 100;
positionActual.Down = Nav.Pos[2] * 100;
PositionActualSet(&positionActual);
}
void send_calibration(void)
{
AHRSCalibrationData cal;
AHRSCalibrationGet(&cal);
for(int ct=0; ct<3; ct++)
{
cal.accel_var[ct] = accel_data.calibration.variance[ct];
cal.gyro_bias[ct] = gyro_data.calibration.bias[ct];
cal.gyro_var[ct] = gyro_data.calibration.variance[ct];
cal.mag_var[ct] = mag_data.calibration.variance[ct];
}
cal.measure_var = AHRSCALIBRATION_MEASURE_VAR_SET;
AHRSCalibrationSet(&cal);
}
/**
* @brief INS calibration callback
*
* Called when the OP board sets the calibration
*/
void calibration_callback(AhrsObjHandle obj)
{
AHRSCalibrationData cal;
AHRSCalibrationGet(&cal);
if(cal.measure_var == AHRSCALIBRATION_MEASURE_VAR_SET){
accel_data.calibration.scale[0][1] = cal.accel_ortho[0];
accel_data.calibration.scale[1][0] = cal.accel_ortho[0];
accel_data.calibration.scale[0][2] = cal.accel_ortho[1];
accel_data.calibration.scale[2][0] = cal.accel_ortho[1];
accel_data.calibration.scale[1][2] = cal.accel_ortho[2];
accel_data.calibration.scale[2][1] = cal.accel_ortho[2];
for(int ct=0; ct<3; ct++)
{
accel_data.calibration.scale[ct][ct] = cal.accel_scale[ct];
accel_data.calibration.scale[ct][3] = cal.accel_bias[ct];
accel_data.calibration.variance[ct] = cal.accel_var[ct];
gyro_data.calibration.scale[ct] = cal.gyro_scale[ct];
gyro_data.calibration.bias[ct] = cal.gyro_bias[ct];
gyro_data.calibration.variance[ct] = cal.gyro_var[ct];
mag_data.calibration.bias[ct] = cal.mag_bias[ct];
mag_data.calibration.scale[ct] = cal.mag_scale[ct];
mag_data.calibration.variance[ct] = cal.mag_var[ct];
}
// Note: We need the divided by 1000^2 since we scale mags to have a norm of 1000 and they are scaled to
// one in code
float mag_var[3] = {mag_data.calibration.variance[0] / INSGPS_MAGLEN / INSGPS_MAGLEN,
mag_data.calibration.variance[1] / INSGPS_MAGLEN / INSGPS_MAGLEN,
mag_data.calibration.variance[2] / INSGPS_MAGLEN / INSGPS_MAGLEN};
INSSetMagVar(mag_var);
INSSetAccelVar(accel_data.calibration.variance);
INSSetGyroVar(gyro_data.calibration.variance);
}
else if(cal.measure_var == AHRSCALIBRATION_MEASURE_VAR_MEASURE) {
calibrate_sensors();
send_calibration();
}
INSSetPosVelVar(cal.pos_var, cal.vel_var);
}
void settings_callback(AhrsObjHandle obj)
{
AHRSSettingsData settings;
AHRSSettingsGet(&settings);
ahrs_algorithm = settings.Algorithm;
}
void homelocation_callback(AhrsObjHandle obj)
{
HomeLocationData data;
HomeLocationGet(&data);
mag_len = sqrt(pow(data.Be[0],2) + pow(data.Be[1],2) + pow(data.Be[2],2));
float Be[3] = {data.Be[0] / mag_len, data.Be[1] / mag_len, data.Be[2] / mag_len};
INSSetMagNorth(Be);
}
void firmwareiapobj_callback(AhrsObjHandle obj)
{
#if 0
const struct pios_board_info * bdinfo = &pios_board_info_blob;
FirmwareIAPObjData firmwareIAPObj;
FirmwareIAPObjGet(&firmwareIAPObj);
if(firmwareIAPObj.ArmReset==0)
reset_count=0;
if(firmwareIAPObj.ArmReset==1)
{
if((firmwareIAPObj.BoardType==bdinfo->board_type) || (firmwareIAPObj.BoardType==0xFF))
{
++reset_count;
if(reset_count>2)
{
PIOS_IAP_SetRequest1();
PIOS_IAP_SetRequest2();
PIOS_SYS_Reset();
}
}
}
else if(firmwareIAPObj.BoardType==bdinfo->board_type && firmwareIAPObj.crc!=PIOS_BL_HELPER_CRC_Memory_Calc())
{
PIOS_BL_HELPER_FLASH_Read_Description(firmwareIAPObj.Description,bdinfo->desc_size);
firmwareIAPObj.crc=PIOS_BL_HELPER_CRC_Memory_Calc();
firmwareIAPObj.BoardRevision=bdinfo->board_rev;
FirmwareIAPObjSet(&firmwareIAPObj);
}
#endif
}
/**
* @}
*/
Reference in New Issue View Git Blame Copy Permalink