stm32mpu6050加速度计数据读取
时间: 2023-09-14 18:11:49 浏览: 126
对于STM32 MPU6050加速度计数据读取,您可以通过I2C总线读取MPU6050的数据寄存器。下面是一个简单的代码示例,可以帮助您开始:
```c
#include "stm32f4xx.h"
#include "stm32f4xx_i2c.h"
#define MPU6050_ADDRESS 0xD0
#define MPU6050_PWR_MGMT_1 0x6B
#define MPU6050_ACCEL_XOUT_H 0x3B
void I2C_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
I2C_InitTypeDef I2C_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOB, ENABLE);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource8, GPIO_AF_I2C1);
GPIO_PinAFConfig(GPIOB, GPIO_PinSource9, GPIO_AF_I2C1);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_OD;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
I2C_InitStructure.I2C_OwnAddress1 = 0x00;
I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
I2C_InitStructure.I2C_ClockSpeed = 400000;
I2C_Init(I2C1, &I2C_InitStructure);
I2C_Cmd(I2C1, ENABLE);
}
void MPU6050_Init(void)
{
uint8_t txData[2];
// Wake up MPU6050
txData[0] = MPU6050_PWR_MGMT_1;
txData[1] = 0x00;
I2C_WriteBytes(MPU6050_ADDRESS, txData, 2);
}
void MPU6050_ReadAccel(int16_t accel[3])
{
uint8_t rxData[6];
uint8_t txData[1] = {MPU6050_ACCEL_XOUT_H};
I2C_WriteReadBytes(MPU6050_ADDRESS, txData, 1, rxData, 6);
accel[0] = (int16_t)(rxData[0] << 8 | rxData[1]);
accel[1] = (int16_t)(rxData[2] << 8 | rxData[3]);
accel[2] = (int16_t)(rxData[4] << 8 | rxData[5]);
}
int main(void)
{
int16_t accel[3];
I2C_Configuration();
MPU6050_Init();
while (1)
{
MPU6050_ReadAccel(accel);
// Do something with the accelerometer data
}
}
```
在上面的代码中,`I2C_Configuration()`函数初始化了I2C总线,`MPU6050_Init()`函数将MPU6050唤醒以开始读取数据,`MPU6050_ReadAccel()`函数读取了加速度计的数据,将其存储在`accel`数组中。您可以使用`accel`数组中的数据做任何您需要的事情。
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