4-W806-MPU6050-IIC
main.c
#include mpu6050.c
#include "6050.h"
/**
* @brief 写数据到MPU6050寄存器
* @param
* @retval
*/
void MPU6050_WriteReg(uint8_t reg_add,uint8_t reg_dat)
{
IIC_Start();
IIC_Write_Byte(MPU6050_SLAVE_ADDRESS);
IIC_Wait_Ack();
IIC_Write_Byte(reg_add);
IIC_Wait_Ack();
IIC_Write_Byte(reg_dat);
IIC_Wait_Ack();
IIC_Stop();
}
/**
* @brief 从MPU6050寄存器读取数据
* @param
* @retval
*/
void MPU6050_ReadData(uint8_t reg_add,unsigned char*Read,uint8_t num)
{
unsigned char i;
IIC_Start();
IIC_Write_Byte(MPU6050_SLAVE_ADDRESS);
IIC_Wait_Ack();
IIC_Write_Byte(reg_add);
IIC_Wait_Ack();
IIC_Start();
IIC_Write_Byte(MPU6050_SLAVE_ADDRESS+1);
IIC_Wait_Ack();
for(i=0;i<(num-1);i++){
*Read=IIC_Read_Byte(1);
Read++;
}
*Read=IIC_Read_Byte(0);
IIC_Stop();
}
/**
* @brief 初始化MPU6050芯片
* @param
* @retval
*/
void MPU6050_Init(void)
{
int i=0,j=0;
//在初始化之前要延时一段时间，若没有延时，则断电后再上电数据可能会出错
for(i=0;i<1000;i++)
{
for(j=0;j<1000;j++)
{
;
}
}
MPU6050_WriteReg(MPU6050_RA_PWR_MGMT_1, 0x00); //解除休眠状态
MPU6050_WriteReg(MPU6050_RA_SMPLRT_DIV , 0x07); //陀螺仪采样率，1KHz
MPU6050_WriteReg(MPU6050_RA_CONFIG , 0x06); //低通滤波器的设置，截止频率是1K，带宽是5K
MPU6050_WriteReg(MPU6050_RA_ACCEL_CONFIG , 0x00); //配置加速度传感器工作在2G模式，不自检
MPU6050_WriteReg(MPU6050_RA_GYRO_CONFIG, 0x18); //陀螺仪自检及测量范围，典型值：0x18(不自检，2000deg/s)
}
/**
* @brief 读取MPU6050的ID
* @param
* @retval
*/
uint8_t MPU6050ReadID(void)
{
unsigned char Re = 0;
MPU6050_ReadData(MPU6050_RA_WHO_AM_I,&Re,1); //读器件地址
if(Re != 0x68)
{
printf("MPU6050 dectected error!\r\n检测不到MPU6050模块，请检查模块与开发板的接线");
return 0;
}
else
{
printf("MPU6050 ID = %d\r\n",Re);
return 1;
}
}
/**
* @brief 读取MPU6050的加速度数据
* @param
* @retval
*/
void MPU6050ReadAcc(short *accData)
{
uint8_t buf[6];
MPU6050_ReadData(MPU6050_ACC_OUT, buf, 6);
accData[0] = (buf[0] << 8) | buf[1];
accData[1] = (buf[2] << 8) | buf[3];
accData[2] = (buf[4] << 8) | buf[5];
}
/**
* @brief 读取MPU6050的角加速度数据
* @param
* @retval
*/
void MPU6050ReadGyro(short *gyroData)
{
uint8_t buf[6];
MPU6050_ReadData(MPU6050_GYRO_OUT,buf,6);
gyroData[0] = (buf[0] << 8) | buf[1];
gyroData[1] = (buf[2] << 8) | buf[3];
gyroData[2] = (buf[4] << 8) | buf[5];
}
/**
* @brief 读取MPU6050的原始温度数据
* @param
* @retval
*/
void MPU6050ReadTemp(short *tempData)
{
uint8_t buf[2];
MPU6050_ReadData(MPU6050_RA_TEMP_OUT_H,buf,2); //读取温度值
*tempData = (buf[0] << 8) | buf[1];
}
/**
* @brief 读取MPU6050的温度数据，转化成摄氏度
* @param
* @retval
*/
void MPU6050_ReturnTemp(float *Temperature)
{
short temp3;
uint8_t buf[2];
MPU6050_ReadData(MPU6050_RA_TEMP_OUT_H,buf,2); //读取温度值
temp3= (buf[0] << 8) | buf[1];
*Temperature=((double) temp3/340.0)+36.53;
}
mpu6050.h
#include "iic_ctrl.h"
//模块的A0引脚接GND，IIC的7位地址为0x68，若接到VCC，需要改为0x69
#define MPU6050_SLAVE_ADDRESS (0x68<<1) //MPU6050器件读地址
#define MPU6050_WHO_AM_I 0x75
#define MPU6050_SMPLRT_DIV 0 //8000Hz
#define MPU6050_DLPF_CFG 0
#define MPU6050_GYRO_OUT 0x43 //MPU6050陀螺仪数据寄存器地址
#define MPU6050_ACC_OUT 0x3B //MPU6050加速度数据寄存器地址
#define MPU6050_ADDRESS_AD0_LOW 0x68 // address pin low (GND), default for InvenSense evaluation board
#define MPU6050_ADDRESS_AD0_HIGH 0x69 // address pin high (VCC)
#define MPU6050_DEFAULT_ADDRESS MPU6050_ADDRESS_AD0_LOW
#define MPU6050_RA_XG_OFFS_TC 0x00 //[7] PWR_MODE, [6:1] XG_OFFS_TC, [0] OTP_BNK_VLD
#define MPU6050_RA_YG_OFFS_TC 0x01 //[7] PWR_MODE, [6:1] YG_OFFS_TC, [0] OTP_BNK_VLD
#define MPU6050_RA_ZG_OFFS_TC 0x02 //[7] PWR_MODE, [6:1] ZG_OFFS_TC, [0] OTP_BNK_VLD
#define MPU6050_RA_X_FINE_GAIN 0x03 //[7:0] X_FINE_GAIN
#define MPU6050_RA_Y_FINE_GAIN 0x04 //[7:0] Y_FINE_GAIN
#define MPU6050_RA_Z_FINE_GAIN 0x05 //[7:0] Z_FINE_GAIN
#define MPU6050_RA_XA_OFFS_H 0x06 //[15:0] XA_OFFS
#define MPU6050_RA_XA_OFFS_L_TC 0x07
#define MPU6050_RA_YA_OFFS_H 0x08 //[15:0] YA_OFFS
#define MPU6050_RA_YA_OFFS_L_TC 0x09
#define MPU6050_RA_ZA_OFFS_H 0x0A //[15:0] ZA_OFFS
#define MPU6050_RA_ZA_OFFS_L_TC 0x0B
#define MPU6050_RA_XG_OFFS_USRH 0x13 //[15:0] XG_OFFS_USR
#define MPU6050_RA_XG_OFFS_USRL 0x14
#define MPU6050_RA_YG_OFFS_USRH 0x15 //[15:0] YG_OFFS_USR
#define MPU6050_RA_YG_OFFS_USRL 0x16
#define MPU6050_RA_ZG_OFFS_USRH 0x17 //[15:0] ZG_OFFS_USR
#define MPU6050_RA_ZG_OFFS_USRL 0x18
#define MPU6050_RA_SMPLRT_DIV 0x19
#define MPU6050_RA_CONFIG 0x1A
#define MPU6050_RA_GYRO_CONFIG 0x1B
#define MPU6050_RA_ACCEL_CONFIG 0x1C
#define MPU6050_RA_FF_THR 0x1D
#define MPU6050_RA_FF_DUR 0x1E
#define MPU6050_RA_MOT_THR 0x1F
#define MPU6050_RA_MOT_DUR 0x20
#define MPU6050_RA_ZRMOT_THR 0x21
#define MPU6050_RA_ZRMOT_DUR 0x22
#define MPU6050_RA_FIFO_EN 0x23
#define MPU6050_RA_I2C_MST_CTRL 0x24
#define MPU6050_RA_I2C_SLV0_ADDR 0x25
#define MPU6050_RA_I2C_SLV0_REG 0x26
#define MPU6050_RA_I2C_SLV0_CTRL 0x27
#define MPU6050_RA_I2C_SLV1_ADDR 0x28
#define MPU6050_RA_I2C_SLV1_REG 0x29
#define MPU6050_RA_I2C_SLV1_CTRL 0x2A
#define MPU6050_RA_I2C_SLV2_ADDR 0x2B
#define MPU6050_RA_I2C_SLV2_REG 0x2C
#define MPU6050_RA_I2C_SLV2_CTRL 0x2D
#define MPU6050_RA_I2C_SLV3_ADDR 0x2E
#define MPU6050_RA_I2C_SLV3_REG 0x2F
#define MPU6050_RA_I2C_SLV3_CTRL 0x30
#define MPU6050_RA_I2C_SLV4_ADDR 0x31
#define MPU6050_RA_I2C_SLV4_REG 0x32
#define MPU6050_RA_I2C_SLV4_DO 0x33
#define MPU6050_RA_I2C_SLV4_CTRL 0x34
#define MPU6050_RA_I2C_SLV4_DI 0x35
#define MPU6050_RA_I2C_MST_STATUS 0x36
#define MPU6050_RA_INT_PIN_CFG 0x37
#define MPU6050_RA_INT_ENABLE 0x38
#define MPU6050_RA_DMP_INT_STATUS 0x39
#define MPU6050_RA_INT_STATUS 0x3A
#define MPU6050_RA_ACCEL_XOUT_H 0x3B
#define MPU6050_RA_ACCEL_XOUT_L 0x3C
#define MPU6050_RA_ACCEL_YOUT_H 0x3D
#define MPU6050_RA_ACCEL_YOUT_L 0x3E
#define MPU6050_RA_ACCEL_ZOUT_H 0x3F
#define MPU6050_RA_ACCEL_ZOUT_L 0x40
#define MPU6050_RA_TEMP_OUT_H 0x41
#define MPU6050_RA_TEMP_OUT_L 0x42
#define MPU6050_RA_GYRO_XOUT_H 0x43
#define MPU6050_RA_GYRO_XOUT_L 0x44
#define MPU6050_RA_GYRO_YOUT_H 0x45
#define MPU6050_RA_GYRO_YOUT_L 0x46
#define MPU6050_RA_GYRO_ZOUT_H 0x47
#define MPU6050_RA_GYRO_ZOUT_L 0x48
#define MPU6050_RA_EXT_SENS_DATA_00 0x49
#define MPU6050_RA_EXT_SENS_DATA_01 0x4A
#define MPU6050_RA_EXT_SENS_DATA_02 0x4B
#define MPU6050_RA_EXT_SENS_DATA_03 0x4C
#define MPU6050_RA_EXT_SENS_DATA_04 0x4D
#define MPU6050_RA_EXT_SENS_DATA_05 0x4E
#define MPU6050_RA_EXT_SENS_DATA_06 0x4F
#define MPU6050_RA_EXT_SENS_DATA_07 0x50
#define MPU6050_RA_EXT_SENS_DATA_08 0x51
#define MPU6050_RA_EXT_SENS_DATA_09 0x52
#define MPU6050_RA_EXT_SENS_DATA_10 0x53
#define MPU6050_RA_EXT_SENS_DATA_11 0x54
#define MPU6050_RA_EXT_SENS_DATA_12 0x55
#define MPU6050_RA_EXT_SENS_DATA_13 0x56
#define MPU6050_RA_EXT_SENS_DATA_14 0x57
#define MPU6050_RA_EXT_SENS_DATA_15 0x58
#define MPU6050_RA_EXT_SENS_DATA_16 0x59
#define MPU6050_RA_EXT_SENS_DATA_17 0x5A
#define MPU6050_RA_EXT_SENS_DATA_18 0x5B
#define MPU6050_RA_EXT_SENS_DATA_19 0x5C
#define MPU6050_RA_EXT_SENS_DATA_20 0x5D
#define MPU6050_RA_EXT_SENS_DATA_21 0x5E
#define MPU6050_RA_EXT_SENS_DATA_22 0x5F
#define MPU6050_RA_EXT_SENS_DATA_23 0x60
#define MPU6050_RA_MOT_DETECT_STATUS 0x61
#define MPU6050_RA_I2C_SLV0_DO 0x63
#define MPU6050_RA_I2C_SLV1_DO 0x64
#define MPU6050_RA_I2C_SLV2_DO 0x65
#define MPU6050_RA_I2C_SLV3_DO 0x66
#define MPU6050_RA_I2C_MST_DELAY_CTRL 0x67
#define MPU6050_RA_SIGNAL_PATH_RESET 0x68
#define MPU6050_RA_MOT_DETECT_CTRL 0x69
#define MPU6050_RA_USER_CTRL 0x6A
#define MPU6050_RA_PWR_MGMT_1 0x6B
#define MPU6050_RA_PWR_MGMT_2 0x6C
#define MPU6050_RA_BANK_SEL 0x6D
#define MPU6050_RA_MEM_START_ADDR 0x6E
#define MPU6050_RA_MEM_R_W 0x6F
#define MPU6050_RA_DMP_CFG_1 0x70
#define MPU6050_RA_DMP_CFG_2 0x71
#define MPU6050_RA_FIFO_COUNTH 0x72
#define MPU6050_RA_FIFO_COUNTL 0x73
#define MPU6050_RA_FIFO_R_W 0x74
#define MPU6050_RA_WHO_AM_I 0x75
#define MPU6050_TC_PWR_MODE_BIT 7
#define MPU6050_TC_OFFSET_BIT 6
#define MPU6050_TC_OFFSET_LENGTH 6
#define MPU6050_TC_OTP_BNK_VLD_BIT 0
#define MPU6050_VDDIO_LEVEL_VLOGIC 0
#define MPU6050_VDDIO_LEVEL_VDD 1
#define MPU6050_CFG_EXT_SYNC_SET_BIT 5
#define MPU6050_CFG_EXT_SYNC_SET_LENGTH 3
#define MPU6050_CFG_DLPF_CFG_BIT 2
#define MPU6050_CFG_DLPF_CFG_LENGTH 3
#define MPU6050_EXT_SYNC_DISABLED 0x0
#define MPU6050_EXT_SYNC_TEMP_OUT_L 0x1
#define MPU6050_EXT_SYNC_GYRO_XOUT_L 0x2
#define MPU6050_EXT_SYNC_GYRO_YOUT_L 0x3
#define MPU6050_EXT_SYNC_GYRO_ZOUT_L 0x4
#define MPU6050_EXT_SYNC_ACCEL_XOUT_L 0x5
#define MPU6050_EXT_SYNC_ACCEL_YOUT_L 0x6
#define MPU6050_EXT_SYNC_ACCEL_ZOUT_L 0x7
#define MPU6050_DLPF_BW_256 0x00
#define MPU6050_DLPF_BW_188 0x01
#define MPU6050_DLPF_BW_98 0x02
#define MPU6050_DLPF_BW_42 0x03
#define MPU6050_DLPF_BW_20 0x04
#define MPU6050_DLPF_BW_10 0x05
#define MPU6050_DLPF_BW_5 0x06
#define MPU6050_GCONFIG_FS_SEL_BIT 4
#define MPU6050_GCONFIG_FS_SEL_LENGTH 2
#define MPU6050_GYRO_FS_250 0x00
#define MPU6050_GYRO_FS_500 0x01
#define MPU6050_GYRO_FS_1000 0x02
#define MPU6050_GYRO_FS_2000 0x03
#define MPU6050_ACONFIG_XA_ST_BIT 7
#define MPU6050_ACONFIG_YA_ST_BIT 6
#define MPU6050_ACONFIG_ZA_ST_BIT 5
#define MPU6050_ACONFIG_AFS_SEL_BIT 4
#define MPU6050_ACONFIG_AFS_SEL_LENGTH 2
#define MPU6050_ACONFIG_ACCEL_HPF_BIT 2
#define MPU6050_ACONFIG_ACCEL_HPF_LENGTH 3
#define MPU6050_ACCEL_FS_2 0x00
#define MPU6050_ACCEL_FS_4 0x01
#define MPU6050_ACCEL_FS_8 0x02
#define MPU6050_ACCEL_FS_16 0x03
#define MPU6050_DHPF_RESET 0x00
#define MPU6050_DHPF_5 0x01
#define MPU6050_DHPF_2P5 0x02
#define MPU6050_DHPF_1P25 0x03
#define MPU6050_DHPF_0P63 0x04
#define MPU6050_DHPF_HOLD 0x07
#define MPU6050_TEMP_FIFO_EN_BIT 7
#define MPU6050_XG_FIFO_EN_BIT 6
#define MPU6050_YG_FIFO_EN_BIT 5
#define MPU6050_ZG_FIFO_EN_BIT 4
#define MPU6050_ACCEL_FIFO_EN_BIT 3
#define MPU6050_SLV2_FIFO_EN_BIT 2
#define MPU6050_SLV1_FIFO_EN_BIT 1
#define MPU6050_SLV0_FIFO_EN_BIT 0
#define MPU6050_MULT_MST_EN_BIT 7
#define MPU6050_WAIT_FOR_ES_BIT 6
#define MPU6050_SLV_3_FIFO_EN_BIT 5
#define MPU6050_I2C_MST_P_NSR_BIT 4
#define MPU6050_I2C_MST_CLK_BIT 3
#define MPU6050_I2C_MST_CLK_LENGTH 4
#define MPU6050_CLOCK_DIV_348 0x0
#define MPU6050_CLOCK_DIV_333 0x1
#define MPU6050_CLOCK_DIV_320 0x2
#define MPU6050_CLOCK_DIV_308 0x3
#define MPU6050_CLOCK_DIV_296 0x4
#define MPU6050_CLOCK_DIV_286 0x5
#define MPU6050_CLOCK_DIV_276 0x6
#define MPU6050_CLOCK_DIV_267 0x7
#define MPU6050_CLOCK_DIV_258 0x8
#define MPU6050_CLOCK_DIV_500 0x9
#define MPU6050_CLOCK_DIV_471 0xA
#define MPU6050_CLOCK_DIV_444 0xB
#define MPU6050_CLOCK_DIV_421 0xC
#define MPU6050_CLOCK_DIV_400 0xD
#define MPU6050_CLOCK_DIV_381 0xE
#define MPU6050_CLOCK_DIV_364 0xF
#define MPU6050_I2C_SLV_RW_BIT 7
#define MPU6050_I2C_SLV_ADDR_BIT 6
#define MPU6050_I2C_SLV_ADDR_LENGTH 7
#define MPU6050_I2C_SLV_EN_BIT 7
#define MPU6050_I2C_SLV_BYTE_SW_BIT 6
#define MPU6050_I2C_SLV_REG_DIS_BIT 5
#define MPU6050_I2C_SLV_GRP_BIT 4
#define MPU6050_I2C_SLV_LEN_BIT 3
#define MPU6050_I2C_SLV_LEN_LENGTH 4
#define MPU6050_I2C_SLV4_RW_BIT 7
#define MPU6050_I2C_SLV4_ADDR_BIT 6
#define MPU6050_I2C_SLV4_ADDR_LENGTH 7
#define MPU6050_I2C_SLV4_EN_BIT 7
#define MPU6050_I2C_SLV4_INT_EN_BIT 6
#define MPU6050_I2C_SLV4_REG_DIS_BIT 5
#define MPU6050_I2C_SLV4_MST_DLY_BIT 4
#define MPU6050_I2C_SLV4_MST_DLY_LENGTH 5
#define MPU6050_MST_PASS_THROUGH_BIT 7
#define MPU6050_MST_I2C_SLV4_DONE_BIT 6
#define MPU6050_MST_I2C_LOST_ARB_BIT 5
#define MPU6050_MST_I2C_SLV4_NACK_BIT 4
#define MPU6050_MST_I2C_SLV3_NACK_BIT 3
#define MPU6050_MST_I2C_SLV2_NACK_BIT 2
#define MPU6050_MST_I2C_SLV1_NACK_BIT 1
#define MPU6050_MST_I2C_SLV0_NACK_BIT 0
#define MPU6050_INTCFG_INT_LEVEL_BIT 7
#define MPU6050_INTCFG_INT_OPEN_BIT 6
#define MPU6050_INTCFG_LATCH_INT_EN_BIT 5
#define MPU6050_INTCFG_INT_RD_CLEAR_BIT 4
#define MPU6050_INTCFG_FSYNC_INT_LEVEL_BIT 3
#define MPU6050_INTCFG_FSYNC_INT_EN_BIT 2
#define MPU6050_INTCFG_I2C_BYPASS_EN_BIT 1
#define MPU6050_INTCFG_CLKOUT_EN_BIT 0
#define MPU6050_INTMODE_ACTIVEHIGH 0x00
#define MPU6050_INTMODE_ACTIVELOW 0x01
#define MPU6050_INTDRV_PUSHPULL 0x00
#define MPU6050_INTDRV_OPENDRAIN 0x01
#define MPU6050_INTLATCH_50USPULSE 0x00
#define MPU6050_INTLATCH_WAITCLEAR 0x01
#define MPU6050_INTCLEAR_STATUSREAD 0x00
#define MPU6050_INTCLEAR_ANYREAD 0x01
#define MPU6050_INTERRUPT_FF_BIT 7
#define MPU6050_INTERRUPT_MOT_BIT 6
#define MPU6050_INTERRUPT_ZMOT_BIT 5
#define MPU6050_INTERRUPT_FIFO_OFLOW_BIT 4
#define MPU6050_INTERRUPT_I2C_MST_INT_BIT 3
#define MPU6050_INTERRUPT_PLL_RDY_INT_BIT 2
#define MPU6050_INTERRUPT_DMP_INT_BIT 1
#define MPU6050_INTERRUPT_DATA_RDY_BIT 0
// TODO: figure out what these actually do
// UMPL source code is not very obivous
#define MPU6050_DMPINT_5_BIT 5
#define MPU6050_DMPINT_4_BIT 4
#define MPU6050_DMPINT_3_BIT 3
#define MPU6050_DMPINT_2_BIT 2
#define MPU6050_DMPINT_1_BIT 1
#define MPU6050_DMPINT_0_BIT 0
#define MPU6050_MOTION_MOT_XNEG_BIT 7
#define MPU6050_MOTION_MOT_XPOS_BIT 6
#define MPU6050_MOTION_MOT_YNEG_BIT 5
#define MPU6050_MOTION_MOT_YPOS_BIT 4
#define MPU6050_MOTION_MOT_ZNEG_BIT 3
#define MPU6050_MOTION_MOT_ZPOS_BIT 2
#define MPU6050_MOTION_MOT_ZRMOT_BIT 0
#define MPU6050_DELAYCTRL_DELAY_ES_SHADOW_BIT 7
#define MPU6050_DELAYCTRL_I2C_SLV4_DLY_EN_BIT 4
#define MPU6050_DELAYCTRL_I2C_SLV3_DLY_EN_BIT 3
#define MPU6050_DELAYCTRL_I2C_SLV2_DLY_EN_BIT 2
#define MPU6050_DELAYCTRL_I2C_SLV1_DLY_EN_BIT 1
#define MPU6050_DELAYCTRL_I2C_SLV0_DLY_EN_BIT 0
#define MPU6050_PATHRESET_GYRO_RESET_BIT 2
#define MPU6050_PATHRESET_ACCEL_RESET_BIT 1
#define MPU6050_PATHRESET_TEMP_RESET_BIT 0
#define MPU6050_DETECT_ACCEL_ON_DELAY_BIT 5
#define MPU6050_DETECT_ACCEL_ON_DELAY_LENGTH 2
#define MPU6050_DETECT_FF_COUNT_BIT 3
#define MPU6050_DETECT_FF_COUNT_LENGTH 2
#define MPU6050_DETECT_MOT_COUNT_BIT 1
#define MPU6050_DETECT_MOT_COUNT_LENGTH 2
#define MPU6050_DETECT_DECREMENT_RESET 0x0
#define MPU6050_DETECT_DECREMENT_1 0x1
#define MPU6050_DETECT_DECREMENT_2 0x2
#define MPU6050_DETECT_DECREMENT_4 0x3
#define MPU6050_USERCTRL_DMP_EN_BIT 7
#define MPU6050_USERCTRL_FIFO_EN_BIT 6
#define MPU6050_USERCTRL_I2C_MST_EN_BIT 5
#define MPU6050_USERCTRL_I2C_IF_DIS_BIT 4
#define MPU6050_USERCTRL_DMP_RESET_BIT 3
#define MPU6050_USERCTRL_FIFO_RESET_BIT 2
#define MPU6050_USERCTRL_I2C_MST_RESET_BIT 1
#define MPU6050_USERCTRL_SIG_COND_RESET_BIT 0
#define MPU6050_PWR1_DEVICE_RESET_BIT 7
#define MPU6050_PWR1_SLEEP_BIT 6
#define MPU6050_PWR1_CYCLE_BIT 5
#define MPU6050_PWR1_TEMP_DIS_BIT 3
#define MPU6050_PWR1_CLKSEL_BIT 2
#define MPU6050_PWR1_CLKSEL_LENGTH 3
#define MPU6050_CLOCK_INTERNAL 0x00
#define MPU6050_CLOCK_PLL_XGYRO 0x01
#define MPU6050_CLOCK_PLL_YGYRO 0x02
#define MPU6050_CLOCK_PLL_ZGYRO 0x03
#define MPU6050_CLOCK_PLL_EXT32K 0x04
#define MPU6050_CLOCK_PLL_EXT19M 0x05
#define MPU6050_CLOCK_KEEP_RESET 0x07
#define MPU6050_PWR2_LP_WAKE_CTRL_BIT 7
#define MPU6050_PWR2_LP_WAKE_CTRL_LENGTH 2
#define MPU6050_PWR2_STBY_XA_BIT 5
#define MPU6050_PWR2_STBY_YA_BIT 4
#define MPU6050_PWR2_STBY_ZA_BIT 3
#define MPU6050_PWR2_STBY_XG_BIT 2
#define MPU6050_PWR2_STBY_YG_BIT 1
#define MPU6050_PWR2_STBY_ZG_BIT 0
#define MPU6050_WAKE_FREQ_1P25 0x0
#define MPU6050_WAKE_FREQ_2P5 0x1
#define MPU6050_WAKE_FREQ_5 0x2
#define MPU6050_WAKE_FREQ_10 0x3
#define MPU6050_BANKSEL_PRFTCH_EN_BIT 6
#define MPU6050_BANKSEL_CFG_USER_BANK_BIT 5
#define MPU6050_BANKSEL_MEM_SEL_BIT 4
#define MPU6050_BANKSEL_MEM_SEL_LENGTH 5
#define MPU6050_WHO_AM_I_BIT 6
#define MPU6050_WHO_AM_I_LENGTH 6
#define MPU6050_DMP_MEMORY_BANKS 8
#define MPU6050_DMP_MEMORY_BANK_SIZE 256
#define MPU6050_DMP_MEMORY_CHUNK_SIZE 16
void MPU6050ReadTemp(short *tempData);
void MPU6050ReadGyro(short *gyroData);
void MPU6050ReadAcc(short *accData);
void MPU6050_ReturnTemp(float *Temperature);
void MPU6050_Init(void);
uint8_t MPU6050ReadID(void);
void PMU6050_ReadData(uint8_t reg_add,unsigned char*Read,uint8_t num);
void PMU6050_WriteReg(uint8_t reg_add,uint8_t reg_dat);
void MPU6050_PWR_MGMT_1_INIT(void);
iic_ctrl.c
/**
* Copyright (c) 2022-2023，HelloAlpha
*
* Change Logs:
* Date Author Notes
*/
#include "iic_ctrl.h"
void IIC_Start(void)
{
SDA_OUT();
SDA_HIGH();
SCL_HIGH();
Delay_Us(160,4);
SDA_LOW();
Delay_Us(160,4);
SCL_LOW();
Delay_Us(160,2);
}
void IIC_Stop(void)
{
SDA_OUT();
SCL_LOW();
SDA_LOW();
Delay_Us(160,4);
SCL_HIGH();
SDA_HIGH();
Delay_Us(160,4);
}
// 1，接收应答失败
// 0，接收应答成功
uint8_t IIC_Wait_Ack(void)
{
uint8_t ucErrTime=0;
SDA_OUT();
SDA_HIGH();
Delay_Us(160,1);
SCL_HIGH();
Delay_Us(160,1);
SDA_IN();
while(SDA_READ())
{
ucErrTime++;
if(ucErrTime > 250)
{
IIC_Stop();
return 1;
}
}
SCL_LOW();
return 0;
}
//产生ACK应答
void IIC_Ack(void)
{
SCL_LOW();
SDA_OUT();
SDA_LOW();
Delay_Us(160,2);
SCL_HIGH();
Delay_Us(160,2);
SCL_LOW();
}
//不产生ACK应答
void IIC_NAck(void)
{
SCL_LOW();
SDA_OUT();
SDA_HIGH();
Delay_Us(160,2);
SCL_HIGH();
Delay_Us(160,2);
SCL_LOW();
}
void IIC_Write_Byte(uint8_t data)
{
uint8_t i = 0;
SDA_OUT();
SCL_LOW();
for(i=0; i<8; i++)
{
if(data & 0x80 )
SDA_HIGH();
else
SDA_LOW();
data <<= 1;
Delay_Us(160,2);
SCL_HIGH();
Delay_Us(160,2);
SCL_LOW();
Delay_Us(160,2);
}
}
// ack = 1，发送 ACK
// ack = 0，发送 nACK
uint8_t IIC_Read_Byte(uint8_t ack)
{
uint8_t i = 0, data = 0;
SDA_IN();
for(i = 0; i < 8; i++)
{
SCL_LOW();
Delay_Us(160,2);
SCL_HIGH();
data <<= 1;
if(SDA_READ())
data++;
Delay_Us(160,1);
}
if(!ack)
IIC_NAck();
else
IIC_Ack();
return data;
}
void IIC_Write_UINT16(uint8_t dev_addr, uint8_t wr_addr, uint16_t data)
{
IIC_Start();
IIC_Write_Byte(dev_addr);
IIC_Wait_Ack();
IIC_Write_Byte(wr_addr);
IIC_Wait_Ack();
IIC_Write_Byte(data >> 8);
IIC_Wait_Ack();
IIC_Write_Byte(data & 0xFF);
IIC_Wait_Ack();
IIC_Stop();
Delay_Us(160,800);
}
uint16_t IIC_Read_UINT16(uint8_t dev_addr, uint8_t rd_addr)
{
uint16_t data;
IIC_Start();
IIC_Write_Byte(dev_addr);
IIC_Wait_Ack();
IIC_Write_Byte(rd_addr);
IIC_Wait_Ack();
IIC_Start();
IIC_Write_Byte(dev_addr + 1);
IIC_Wait_Ack();
data = IIC_Read_Byte(1);
data = (data <<8 ) + IIC_Read_Byte(0);
IIC_Stop();
return data;
}
void Delay_Us(uint8_t freq,uint32_t time)
{
uint32_t i;
uint16_t num = 90;
switch(freq)
{
case 240: num = 80;break;
case 160: num = 53;break;
default: printf("delay input freq err...default set 240MHZ us time \r\n ");break;
}
for (i = 0; i < (num)*time; i++)
{
__NOP();
}
}
void Delay_Ms(uint8_t freq,uint32_t time)
{
uint32_t i;
uint16_t num = 90;
switch(freq)
{
case 240: num = 80;break;
case 160: num = 53;break;
default: printf("delay input freq err...default set 240MHZ us time \r\n ");break;
}
for (i = 0; i < (num)*time*1000; i++)
{
__NOP();
}
}
iic_ctrl.h
/**
* Copyright (c) 2022-2023£¬HelloAlpha
*
* Change Logs:
* Date Author Notes
*/
#ifndef __I2C_CTRL_H__
#define __I2C_CTRL_H__
#include "iic_io.h"
void IIC_Start(void);
void IIC_Stop(void);
uint8_t IIC_Wait_Ack(void);
void IIC_Ack(void);
void IIC_NAck(void);
void IIC_Write_Byte(uint8_t value );
uint8_t IIC_Read_Byte(uint8_t addr);
void IIC_Write_UINT16(uint8_t dev_addr, uint8_t wr_addr, uint16_t data);
uint16_t IIC_Read_UINT16(uint8_t dev_addr, uint8_t rd_addr);
void Delay_Us(uint8_t freq,uint32_t time);
void Delay_Ms(uint8_t freq,uint32_t time);
#endif
iic_io.c
/**
* Copyright (c) 2022-2023£¬HelloAlpha
*
* Change Logs:
* Date Author Notes
*/
#include "iic_io.h"
void SCL_OUT(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0}; //初始化GPIO结构体
__HAL_RCC_GPIO_CLK_ENABLE(); //打开GPIO时钟
GPIO_InitStruct.Pin = GPIO_PIN_0; //配置引脚
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT; //配置成输出模式
GPIO_InitStruct.Pull = GPIO_NOPULL; //不拉
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); //引脚初始化
}
void SCL_HIGH(void)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0, GPIO_PIN_SET);
}
void SCL_LOW(void)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0, GPIO_RESET);
}
void SDA_IN(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0}; //初始化GPIO结构体
__HAL_RCC_GPIO_CLK_ENABLE(); //打开GPIO时钟
GPIO_InitStruct.Pin = GPIO_PIN_1; //配置引脚
GPIO_InitStruct.Mode = GPIO_MODE_INPUT; //配置成输入模式
GPIO_InitStruct.Pull = GPIO_NOPULL; //不拉
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); //引脚初始化
}
uint32_t SDA_READ(void)
{
return HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_1);
}
void SDA_OUT(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0}; //初始化GPIO结构体
__HAL_RCC_GPIO_CLK_ENABLE(); //打开GPIO时钟
GPIO_InitStruct.Pin = GPIO_PIN_1; //配置引脚
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT; //配置成输出模式
GPIO_InitStruct.Pull = GPIO_NOPULL; //不拉
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); //引脚初始化
}
void SDA_HIGH(void)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET);
}
void SDA_LOW(void)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_RESET);
}
int IIC_Init(void)
{
SCL_OUT();
SCL_HIGH();
SDA_OUT();
SDA_HIGH();
return 0;
}
void Gpio_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0}; //初始化GPIO结构体
__HAL_RCC_GPIO_CLK_ENABLE(); //打开GPIO时钟
GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1; //配置引脚
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT; //配置成输出模式
GPIO_InitStruct.Pull = GPIO_NOPULL; //不拉
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); //引脚初始化
// HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0 | GPIO_PIN_1, GPIO_PIN_SET); //输出高电平
}
iic_io.h
/**
* Copyright (c) 2022-2023£¬HelloAlpha
*
* Change Logs:
* Date Author Notes
*/
#ifndef __IIC_IO_H__
#define __IIC_IO_H__
#include "wm_hal.h"
#define SCL_PIN GPIO_PIN_0
#define SDA_PIN GPIO_PIN_1
#define GPIO_MODEL_INPUT 0
#define GPIO_MODEL_OUTPUT 1
#define GPIO_OUTPUT_DISABLE 0
#define GPIO_OUTPUT_ENABLE 1
#define GPIO_RESET 0
#define GPIO_SET 1
void SCL_OUT(void);
void SCL_HIGH(void);
void SCL_LOW(void);
void SDA_IN(void);
uint32_t SDA_READ(void);
void SDA_OUT(void);
void SDA_HIGH(void);
void SDA_LOW(void);
int IIC_Init(void);
void Gpio_Init(void);
#endif