基于stm32的Max30102驱动代码

以下是基于STM32的Max30102驱动代码，假设你使用的是STM32CubeIDE开发环境：

#include "main.h"
#include "i2c.h"

#define MAX30102_ADDRESS 0xAE //I2C地址

#define MAX30102_REG_INT_STATUS_1 0x00
#define MAX30102_REG_INT_STATUS_2 0x01
#define MAX30102_REG_FIFO_WR_PTR 0x02
#define MAX30102_REG_OVF_COUNTER 0x03
#define MAX30102_REG_FIFO_RD_PTR 0x04
#define MAX30102_REG_FIFO_DATA 0x05
#define MAX30102_REG_FIFO_CONFIG 0x08
#define MAX30102_REG_MODE_CONFIG 0x09
#define MAX30102_REG_SPO2_CONFIG 0x0A
#define MAX30102_REG_LED1_PA 0x0C
#define MAX30102_REG_LED2_PA 0x0D
#define MAX30102_REG_PILOT_PA 0x10

#define MAX30102_MODE_HR 0x02
#define MAX30102_MODE_SPO2 0x03
#define MAX30102_MODE_MULTI_LED 0x07

//初始化Max30102
void MAX30102_Init() {
    uint8_t data;
    
    //复位Max30102
    data = 0x40;
    HAL_I2C_Mem_Write(&hi2c1, MAX30102_ADDRESS, MAX30102_REG_MODE_CONFIG, 1, &data, 1, 1000);
    HAL_Delay(100);
    
    //配置FIFO为连续模式
    data = 0x40;
    HAL_I2C_Mem_Write(&hi2c1, MAX30102_ADDRESS, MAX30102_REG_FIFO_CONFIG, 1, &data, 1, 1000);
    
    //配置模式为HR
    data = MAX30102_MODE_HR;
    HAL_I2C_Mem_Write(&hi2c1, MAX30102_ADDRESS, MAX30102_REG_MODE_CONFIG, 1, &data, 1, 1000);
    
    //配置LED1和LED2的功率
    data = 0x1F;
    HAL_I2C_Mem_Write(&hi2c1, MAX30102_ADDRESS, MAX30102_REG_LED1_PA, 1, &data, 1, 1000);
    HAL_I2C_Mem_Write(&hi2c1, MAX30102_ADDRESS, MAX30102_REG_LED2_PA, 1, &data, 1, 1000);
    
    //配置采样速率和脉宽
    data = 0x27;
    HAL_I2C_Mem_Write(&hi2c1, MAX30102_ADDRESS, MAX30102_REG_SPO2_CONFIG, 1, &data, 1, 1000);
}

//读取Max30102的数据
void MAX30102_ReadData(uint32_t *red, uint32_t *ir) {
    uint8_t data[6];
    HAL_I2C_Mem_Read(&hi2c1, MAX30102_ADDRESS, MAX30102_REG_FIFO_DATA, 1, data, 6, 1000);
    *red = (data[0] << 16) | (data[1] << 8) | data[2];
    *ir = (data[3] << 16) | (data[4] << 8) | data[5];
}

注意，以上代码仅作为示例，实际使用时需要根据具体情况进行修改和调试。同时，需要在STM32CubeMX中配置好I2C和时钟等相关参数。