static void mpu6050GyroInit(void)
{
mpu6050GpioInit();
bool ack;
ack = i2cWrite(MPU6050_ADDRESS, MPU_RA_PWR_MGMT_1, 0x80); //PWR_MGMT_1 -- DEVICE_RESET 1
delay(100);
ack = i2cWrite(MPU6050_ADDRESS, MPU_RA_PWR_MGMT_1, 0x03); //PWR_MGMT_1 -- SLEEP 0; CYCLE 0; TEMP_DIS 0; CLKSEL 3 (PLL with Z Gyro reference)
delay(15); //PLL Settling time when changing CLKSEL is max 10ms. Use 15ms to be sure
ack = i2cWrite(MPU6050_ADDRESS, MPU_RA_SMPLRT_DIV, gyroMPU6xxxGetDivider()); //SMPLRT_DIV -- SMPLRT_DIV = 7 Sample Rate = Gyroscope Output Rate / (1 + SMPLRT_DIV)
delay(15); //PLL Settling time when changing CLKSEL is max 10ms. Use 15ms to be sure
ack = i2cWrite(MPU6050_ADDRESS, MPU_RA_CONFIG, mpuLowPassFilter); //CONFIG -- EXT_SYNC_SET 0 (disable input pin for data sync) ; default DLPF_CFG = 0 => ACC bandwidth = 260Hz GYRO bandwidth = 256Hz)
ack = i2cWrite(MPU6050_ADDRESS, MPU_RA_GYRO_CONFIG, INV_FSR_2000DPS << 3); //GYRO_CONFIG -- FS_SEL = 3: Full scale set to 2000 deg/sec
// ACC Init stuff. Moved into gyro init because the reset above would screw up accel config. Oops.
// Accel scale 8g (4096 LSB/g)
ack = i2cWrite(MPU6050_ADDRESS, MPU_RA_ACCEL_CONFIG, INV_FSR_8G << 3);
// ack = i2cWrite(MPU6050_ADDRESS, MPU_RA_INT_PIN_CFG,
// 0 << 7 | 0 << 6 | 0 << 5 | 0 << 4 | 0 << 3 | 0 << 2 | 1 << 1 | 0 << 0); // INT_PIN_CFG -- INT_LEVEL_HIGH, INT_OPEN_DIS, LATCH_INT_DIS, INT_RD_CLEAR_DIS, FSYNC_INT_LEVEL_HIGH, FSYNC_INT_DIS, I2C_BYPASS_EN, CLOCK_DIS
ack = i2cWrite(MPU6050_ADDRESS, MPU_RA_INT_PIN_CFG,
0 << 7 | 0 << 6 | 0 << 5 | 0 << 4 | 0 << 3 | 0 << 2 | 0 << 1 | 0 << 0); // INT_PIN_CFG -- INT_LEVEL_HIGH, INT_OPEN_DIS, LATCH_INT_DIS, INT_RD_CLEAR_DIS, FSYNC_INT_LEVEL_HIGH, FSYNC_INT_DIS, I2C_BYPASS_EN, CLOCK_DIS
#ifdef USE_MPU_DATA_READY_SIGNAL
ack = i2cWrite(MPU6050_ADDRESS, MPU_RA_INT_ENABLE, MPU_RF_DATA_RDY_EN);
#endif
UNUSED(ack);
}
static void mpu6050AccInit(void)
{
mpu6050GpioInit();
switch (mpuAccelTrim) {
case MPU_6050_HALF_RESOLUTION:
acc_1G = 256 * 8;
break;
case MPU_6050_FULL_RESOLUTION:
acc_1G = 512 * 8;
break;
}
}
static void mpu6050AccInit(void)
{
if (mpu6050Config) {
mpu6050GpioInit();
mpu6050Config = NULL; // avoid re-initialisation of GPIO;
}
switch (mpuAccelTrim) {
case MPU_6050_HALF_RESOLUTION:
acc_1G = 256 * 8;
break;
case MPU_6050_FULL_RESOLUTION:
acc_1G = 512 * 8;
break;
}
}
static void mpu6050GyroInit(void)
{
if (mpu6050Config) {
mpu6050GpioInit();
mpu6050Config = NULL; // avoid re-initialisation of GPIO;
}
i2cWrite(MPU6050_ADDRESS, MPU_RA_PWR_MGMT_1, 0x80); //PWR_MGMT_1 -- DEVICE_RESET 1
delay(100);
i2cWrite(MPU6050_ADDRESS, MPU_RA_SMPLRT_DIV, 0x00); //SMPLRT_DIV -- SMPLRT_DIV = 0 Sample Rate = Gyroscope Output Rate / (1 + SMPLRT_DIV)
i2cWrite(MPU6050_ADDRESS, MPU_RA_PWR_MGMT_1, 0x03); //PWR_MGMT_1 -- SLEEP 0; CYCLE 0; TEMP_DIS 0; CLKSEL 3 (PLL with Z Gyro reference)
i2cWrite(MPU6050_ADDRESS, MPU_RA_CONFIG, mpuLowPassFilter); //CONFIG -- EXT_SYNC_SET 0 (disable input pin for data sync) ; default DLPF_CFG = 0 => ACC bandwidth = 260Hz GYRO bandwidth = 256Hz)
i2cWrite(MPU6050_ADDRESS, MPU_RA_GYRO_CONFIG, INV_FSR_2000DPS << 3); //GYRO_CONFIG -- FS_SEL = 3: Full scale set to 2000 deg/sec
// ACC Init stuff. Moved into gyro init because the reset above would screw up accel config. Oops.
// Accel scale 8g (4096 LSB/g)
i2cWrite(MPU6050_ADDRESS, MPU_RA_ACCEL_CONFIG, INV_FSR_8G << 3);
i2cWrite(MPU6050_ADDRESS, MPU_RA_INT_PIN_CFG,
0 << 7 | 0 << 6 | 0 << 5 | 0 << 4 | 0 << 3 | 0 << 2 | 1 << 1 | 0 << 0); // INT_PIN_CFG -- INT_LEVEL_HIGH, INT_OPEN_DIS, LATCH_INT_DIS, INT_RD_CLEAR_DIS, FSYNC_INT_LEVEL_HIGH, FSYNC_INT_DIS, I2C_BYPASS_EN, CLOCK_DIS
}
