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#include "MPU6050.h"
#include "IOI2C.h"
#include "usart1.h"
#include <math.h>
#include "inv_mpu_dmp_motion_driver.h"
#include "inv_mpu.h"
#include <stdio.h>
/**************************************************************************/
#define PRINT_ACCEL (0x01)
#define PRINT_GYRO (0x02)
#define PRINT_QUAT (0x04)
#define ACCEL_ON (0x01)
#define GYRO_ON (0x02)
#define MOTION (0)
#define NO_MOTION (1)
#define DEFAULT_MPU_HZ (200)
#define FLASH_SIZE (512)
#define FLASH_MEM_START ((void*)0x1800)
#define q30 1073741824.0f
static signed char gyro_orientation[9] = {-1, 0, 0,
0,-1, 0,
0, 0, 1};
static unsigned short inv_row_2_scale(const signed char *row)
{
unsigned short b;
if (row[0] > 0)
b = 0;
else if (row[0] < 0)
b = 4;
else if (row[1] > 0)
b = 1;
else if (row[1] < 0)
b = 5;
else if (row[2] > 0)
b = 2;
else if (row[2] < 0)
b = 6;
else
b = 7; // error
return b;
}
static unsigned short inv_orientation_matrix_to_scalar(
const signed char *mtx)
{
unsigned short scalar;
scalar = inv_row_2_scale(mtx);
scalar |= inv_row_2_scale(mtx + 3) << 3;
scalar |= inv_row_2_scale(mtx + 6) << 6;
return scalar;
}
static void run_self_test(void)
{
int result;
long gyro[3], accel[3];
result = mpu_run_self_test(gyro, accel);
if (result == 0x7) {
/* Test passed. We can trust the gyro data here, so let's push it down
* to the DMP.
*/
float sens;
unsigned short accel_sens;
mpu_get_gyro_sens(&sens);
gyro[0] = (long)(gyro[0] * sens);
gyro[1] = (long)(gyro[1] * sens);
gyro[2] = (long)(gyro[2] * sens);
dmp_set_gyro_bias(gyro);
mpu_get_accel_sens(&accel_sens);
accel[0] *= accel_sens;
accel[1] *= accel_sens;
accel[2] *= accel_sens;
dmp_set_accel_bias(accel);
printf("setting bias succesfully ......\r\n");
}
}
uint8_t buffer[14];
int16_t MPU6050_FIFO[6][11];
int16_t Gx_offset=0,Gy_offset=0,Gz_offset=0;
/**************************實現函數********************************************
*函數原型: void MPU6050_newValues(int16_t ax,int16_t ay,int16_t az,int16_t gx,int16_t gy,int16_t gz)
*功　　能: 將新的ADC數據更新到 FIFO數組，進行濾波處理
*******************************************************************************/
void MPU6050_newValues(int16_t ax,int16_t ay,int16_t az,int16_t gx,int16_t gy,int16_t gz)
{
unsigned char i ;
int32_t sum=0;
for(i=1;i<10;i++){ //FIFO 操作
MPU6050_FIFO[0][i-1]=MPU6050_FIFO[0][i];
MPU6050_FIFO[1][i-1]=MPU6050_FIFO[1][i];
MPU6050_FIFO[2][i-1]=MPU6050_FIFO[2][i];
MPU6050_FIFO[3][i-1]=MPU6050_FIFO[3][i];
MPU6050_FIFO[4][i-1]=MPU6050_FIFO[4][i];
MPU6050_FIFO[5][i-1]=MPU6050_FIFO[5][i];
}
MPU6050_FIFO[0][9]=ax;//將新的數據放置到數據的最后面
MPU6050_FIFO[1][9]=ay;
MPU6050_FIFO[2][9]=az;
MPU6050_FIFO[3][9]=gx;
MPU6050_FIFO[4][9]=gy;
MPU6050_FIFO[5][9]=gz;
sum=0;
for(i=0;i<10;i++){ //求當前數組的合，再取平均值
sum+=MPU6050_FIFO[0][i];
}
MPU6050_FIFO[0][10]=sum/10;
sum=0;
for(i=0;i<10;i++){
sum+=MPU6050_FIFO[1][i];
}
MPU6050_FIFO[1][10]=sum/10;
sum=0;
for(i=0;i<10;i++){
sum+=MPU6050_FIFO[2][i];
}
MPU6050_FIFO[2][10]=sum/10;
sum=0;
for(i=0;i<10;i++){
sum+=MPU6050_FIFO[3][i];
}
MPU6050_FIFO[3][10]=sum/10;
sum=0;
for(i=0;i<10;i++){
sum+=MPU6050_FIFO[4][i];
}
MPU6050_FIFO[4][10]=sum/10;
sum=0;
for(i=0;i<10;i++){
sum+=MPU6050_FIFO[5][i];
}
MPU6050_FIFO[5][10]=sum/10;
}
/**************************實現函數********************************************
*函數原型: void MPU6050_setClockSource(uint8_t source)
*功　　能: 設置 MPU6050 的時鐘源
* CLK_SEL | Clock Source
* --------+--------------------------------------
* 0 | Internal oscillator
* 1 | PLL with X Gyro reference
* 2 | PLL with Y Gyro reference
* 3 | PLL with Z Gyro reference
* 4 | PLL with external 32.768kHz reference
* 5 | PLL with external 19.2MHz reference
* 6 | Reserved
* 7 | Stops the clock and keeps the timing generator in reset
*******************************************************************************/
void MPU6050_setClockSource(uint8_t source){
IICwriteBits(devAddr, MPU6050_RA_PWR_MGMT_1, MPU6050_PWR1_CLKSEL_BIT, MPU6050_PWR1_CLKSEL_LENGTH, source);
}
/** Set full-scale gyroscope range.
* @param range New full-scale gyroscope range value
* @see getFullScaleRange()
* @see MPU6050_GYRO_FS_250
* @see MPU6050_RA_GYRO_CONFIG
* @see MPU6050_GCONFIG_FS_SEL_BIT
* @see MPU6050_GCONFIG_FS_SEL_LENGTH
*/
void MPU6050_setFullScaleGyroRange(uint8_t range) {
IICwriteBits(devAddr, MPU6050_RA_GYRO_CONFIG, MPU6050_GCONFIG_FS_SEL_BIT, MPU6050_GCONFIG_FS_SEL_LENGTH, range);
}
/**************************實現函數********************************************
*函數原型: void MPU6050_setFullScaleAccelRange(uint8_t range)
*功　　能: 設置 MPU6050 加速度計的最大量程
*******************************************************************************/
void MPU6050_setFullScaleAccelRange(uint8_t range) {
IICwriteBits(devAddr, MPU6050_RA_ACCEL_CONFIG, MPU6050_ACONFIG_AFS_SEL_BIT, MPU6050_ACONFIG_AFS_SEL_LENGTH, range);
}
/**************************實現函數********************************************
*函數原型: void MPU6050_setSleepEnabled(uint8_t enabled)
*功　　能: 設置 MPU6050 是否進入睡眠模式
enabled =1 睡覺
enabled =0 工作
*******************************************************************************/
void MPU6050_setSleepEnabled(uint8_t enabled) {
IICwriteBit(devAddr, MPU6050_RA_PWR_MGMT_1, MPU6050_PWR1_SLEEP_BIT, enabled);
}
/**************************實現函數********************************************
*函數原型: uint8_t MPU6050_getDeviceID(void)
*功　　能: 讀取 MPU6050 WHO_AM_I 標識將返回 0x68
*******************************************************************************/
uint8_t MPU6050_getDeviceID(void) {
IICreadBytes(devAddr, MPU6050_RA_WHO_AM_I, 1, buffer);
return buffer[0];
}
/**************************實現函數********************************************
*函數原型: uint8_t MPU6050_testConnection(void)
*功　　能: 檢測MPU6050 是否已經連接
*******************************************************************************/
uint8_t MPU6050_testConnection(void) {
if(MPU6050_getDeviceID() == 0x68) //0b01101000;
return 1;
else return 0;
}
/**************************實現函數********************************************
*函數原型: void MPU6050_setI2CMasterModeEnabled(uint8_t enabled)
*功　　能: 設置 MPU6050 是否為AUX I2C線的主機
*******************************************************************************/
void MPU6050_setI2CMasterModeEnabled(uint8_t enabled) {
IICwriteBit(devAddr, MPU6050_RA_USER_CTRL, MPU6050_USERCTRL_I2C_MST_EN_BIT, enabled);
}
/**************************實現函數********************************************
*函數原型: void MPU6050_setI2CBypassEnabled(uint8_t enabled)
*功　　能: 設置 MPU6050 是否為AUX I2C線的主機
*******************************************************************************/
void MPU6050_setI2CBypassEnabled(uint8_t enabled) {
IICwriteBit(devAddr, MPU6050_RA_INT_PIN_CFG, MPU6050_INTCFG_I2C_BYPASS_EN_BIT, enabled);
}
/**************************實現函數********************************************
*函數原型: void MPU6050_initialize(void)
*功　　能: 初始化 MPU6050 以進入可用狀態。
*******************************************************************************/
void MPU6050_initialize(void) {
MPU6050_setClockSource(MPU6050_CLOCK_PLL_XGYRO); //設置時鐘
MPU6050_setFullScaleGyroRange(MPU6050_GYRO_FS_2000);//陀螺儀最大量程 +-1000度每秒
MPU6050_setFullScaleAccelRange(MPU6050_ACCEL_FS_2); //加速度度最大量程 +-2G
MPU6050_setSleepEnabled(0); //進入工作狀態
MPU6050_setI2CMasterModeEnabled(0); //不讓MPU6050 控制AUXI2C
MPU6050_setI2CBypassEnabled(0); //主控制器的I2C與 MPU6050的AUXI2C 直通。控制器可以直接訪問HMC5883L
}
/**************************************************************************
函數功能：MPU6050內置DMP的初始化
入口參數：無
返回值：無
作者：平衡小車之家
**************************************************************************/
void DMP_Init(void)
{
u8 temp[1]={0};
i2cRead(0x68,0x75,1,temp);
printf("mpu_set_sensor complete ......\r\n");
if(temp[0]!=0x68)NVIC_SystemReset();
if(!mpu_init())
{
if(!mpu_set_sensors(INV_XYZ_GYRO | INV_XYZ_ACCEL))
printf("mpu_set_sensor complete ......\r\n");
if(!mpu_configure_fifo(INV_XYZ_GYRO | INV_XYZ_ACCEL))
printf("mpu_configure_fifo complete ......\r\n");
if(!mpu_set_sample_rate(DEFAULT_MPU_HZ))
printf("mpu_set_sample_rate complete ......\r\n");
if(!dmp_load_motion_driver_firmware())
printf("dmp_load_motion_driver_firmware complete ......\r\n");
if(!dmp_set_orientation(inv_orientation_matrix_to_scalar(gyro_orientation)))
printf("dmp_set_orientation complete ......\r\n");
if(!dmp_enable_feature(DMP_FEATURE_6X_LP_QUAT | DMP_FEATURE_TAP |
DMP_FEATURE_ANDROID_ORIENT | DMP_FEATURE_SEND_RAW_ACCEL | DMP_FEATURE_SEND_CAL_GYRO |
DMP_FEATURE_GYRO_CAL))
printf("dmp_enable_feature complete ......\r\n");
if(!dmp_set_fifo_rate(DEFAULT_MPU_HZ))
printf("dmp_set_fifo_rate complete ......\r\n");
run_self_test();
if(!mpu_set_dmp_state(1))
printf("mpu_set_dmp_state complete ......\r\n");
}
}
/**************************************************************************
函數功能：讀取MPU6050內置DMP的姿態信息
入口參數：無
返回值：無
作者：平衡小車之家
**************************************************************************/
uint8_t Read_DMP(float* Pitch,float* Roll,float* Yaw)
{
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