135 lines
3.9 KiB
C++
135 lines
3.9 KiB
C++
#include "GY85.h"
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#include "board.h"
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#include "print.h"
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#include "delay.h"
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#define ADXL345_SCALE 0.0392266 // 4mg/LSB 4*9.80665
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#define ITG3205_SCALE 0.001065264417860243 //rad/s 4000/65536*(PI/180)
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#define HMC5883L_SCALE 0.92 // mG/LSb
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#define WRITE_INTERVAL 20
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bool GY85::init()
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{
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delay_ms(500);
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Board::get()->i2c_init();
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if (!accel.testConnection()) {
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#if IMU_DEBUG_ENABLE
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pb_printf("ADXL345 NOT FOUND!");
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#endif
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return false;
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}
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accel.initialize();
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delay_ms(WRITE_INTERVAL);
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accel.setAutoSleepEnabled(false);
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delay_ms(WRITE_INTERVAL);
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accel.setFullResolution(1);
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delay_ms(WRITE_INTERVAL);
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accel.setRange(ADXL345_RANGE_4G);
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delay_ms(WRITE_INTERVAL);
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accel.setRate(ADXL345_RATE_50);
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delay_ms(WRITE_INTERVAL);
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#if IMU_DEBUG_ENABLE
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uint8_t buffer=0;
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Board::get()->i2c_read_byte(ADXL345_DEFAULT_ADDRESS, ADXL345_RA_POWER_CTL, &buffer);
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pb_printf("ADXL345_RA_POWER_CTL=%d", buffer);
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Board::get()->i2c_read_byte(ADXL345_DEFAULT_ADDRESS, ADXL345_RA_DATA_FORMAT, &buffer);
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pb_printf("ADXL345_RA_DATA_FORMAT=%d", buffer);
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Board::get()->i2c_read_byte(ADXL345_DEFAULT_ADDRESS, ADXL345_RA_BW_RATE, &buffer);
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pb_printf("ADXL345_RA_BW_RATE=%d", buffer);
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#endif
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if (!gyro.testConnection()) {
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#if IMU_DEBUG_ENABLE
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pb_printf("ITG3205 NOT FOUND!");
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#endif
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return false;
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}
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gyro.initialize();
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gyro.reset();
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delay_ms(WRITE_INTERVAL);
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gyro.setFullScaleRange(ITG3200_FULLSCALE_2000);
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delay_ms(WRITE_INTERVAL);
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gyro.setDLPFBandwidth(ITG3200_DLPF_BW_42);
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delay_ms(WRITE_INTERVAL);
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gyro.setRate(0x13); //1khz/(1+0x13) 50hz
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delay_ms(WRITE_INTERVAL);
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gyro.setClockSource(ITG3200_CLOCK_PLL_ZGYRO);
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delay_ms(WRITE_INTERVAL);
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#if IMU_DEBUG_ENABLE
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Board::get()->i2c_read_byte(ITG3200_DEFAULT_ADDRESS, ITG3200_RA_PWR_MGM, &buffer);
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pb_printf("ITG3200_RA_PWR_MGM=%d", buffer);
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Board::get()->i2c_read_byte(ITG3200_DEFAULT_ADDRESS, ITG3200_RA_DLPF_FS, &buffer);
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pb_printf("ITG3200_RA_DLPF_FS=%d", buffer);
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Board::get()->i2c_read_byte(ITG3200_DEFAULT_ADDRESS, ITG3200_RA_SMPLRT_DIV, &buffer);
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pb_printf("ITG3200_RA_SMPLRT_DIV=%d", buffer);
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#endif
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if (!mag.testConnection()) {
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#if IMU_DEBUG_ENABLE
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pb_printf("HMC5883L NOT FOUND!");
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#endif
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return false;
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}
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mag.initialize();
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delay_ms(WRITE_INTERVAL);
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mag.setGain(HMC5883L_GAIN_1090);
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delay_ms(WRITE_INTERVAL);
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mag.setDataRate(HMC5883L_RATE_75);
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delay_ms(WRITE_INTERVAL);
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mag.setSampleAveraging(HMC5883L_AVERAGING_1);
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delay_ms(WRITE_INTERVAL);
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mag.setMode(HMC5883L_MODE_SINGLE);
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delay_ms(WRITE_INTERVAL);
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#if IMU_DEBUG_ENABLE
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Board::get()->i2c_read_byte(HMC5883L_DEFAULT_ADDRESS, HMC5883L_RA_CONFIG_B, &buffer);
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pb_printf("HMC5883L_RA_CONFIG_B=%d", buffer);
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Board::get()->i2c_read_byte(HMC5883L_DEFAULT_ADDRESS, HMC5883L_RA_CONFIG_A, &buffer);
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pb_printf("HMC5883L_RA_CONFIG_A=%d", buffer);
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Board::get()->i2c_read_byte(HMC5883L_DEFAULT_ADDRESS, HMC5883L_RA_MODE, &buffer);
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pb_printf("HMC5883L_RA_MODE=%d", buffer);
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#endif
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pb_printf("GY85 INIT SUCCESS!");
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return true;
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}
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#define CYCLE_COUNT 3
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void GY85::get_data(float* imu_data)
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{
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static int i=0;
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if (i%CYCLE_COUNT==0) {
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accel.getAcceleration(&ax, &ay, &az);
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} else if (i%CYCLE_COUNT==1)
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{
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gyro.getRotation(&gx, &gy, &gz);
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} else //if (i%CYCLE_COUNT==2)
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{
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mag.getHeading(&mx, &my, &mz);
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mag.setMode(HMC5883L_MODE_SINGLE);
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}
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i++;
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#if IMU_DEBUG_ENABLE
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pb_printf("[%d %d %d] [%d %d %d] [%d %d %d]", ax, ay, az, gx, gy, gz, mx, my, mz);
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#endif
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imu_data[0] = ax*ADXL345_SCALE;
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imu_data[1] = ay*ADXL345_SCALE;
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imu_data[2] = az*ADXL345_SCALE;
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imu_data[3] = gx*ITG3205_SCALE;
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imu_data[4] = gy*ITG3205_SCALE;
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imu_data[5] = gz*ITG3205_SCALE;
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imu_data[6] = mx*HMC5883L_SCALE;
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imu_data[7] = my*HMC5883L_SCALE;
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imu_data[8] = mz*HMC5883L_SCALE;
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}
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