max30102+stm32f103單片機測試程序

ID:1071165 · 發(fā)表于 2023-4-11 22:03

帶簡單算法
STM32單片機源程序如下:

#include "MAX30102.h"
#include "systick.h"
uint16_t fifo_red;
uint16_t fifo_ir;
void MAX30102_GPIO(void)
{
RCC_APB2PeriphClockCmd(MAX30102_INTPin_CLK,ENABLE);
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStruct.GPIO_Pin = MAX30102_INTPin_Pin;
GPIO_Init(MAX30102_INTPin_PORT,&GPIO_InitStruct);
}
uint8_t Max30102_reset(void)
{
if(IIC_Write_Byte(MAX30102_Device_address,REG_MODE_CONFIG, 0x40))
return 1;
else
return 0;
}
void MAX30102_Config(void)
{
IIC_Write_Byte(MAX30102_Device_address,REG_INTR_ENABLE_1,0xc0);//// INTR setting
IIC_Write_Byte(MAX30102_Device_address,REG_INTR_ENABLE_2,0x00);//
IIC_Write_Byte(MAX30102_Device_address,REG_FIFO_WR_PTR,0x00);//FIFO_WR_PTR[4:0]
IIC_Write_Byte(MAX30102_Device_address,REG_OVF_COUNTER,0x00);//OVF_COUNTER[4:0]
IIC_Write_Byte(MAX30102_Device_address,REG_FIFO_RD_PTR,0x00);//FIFO_RD_PTR[4:0]
IIC_Write_Byte(MAX30102_Device_address,REG_FIFO_CONFIG,0x0f);//sample avg = 1, fifo rollover=false, fifo almost full = 17
IIC_Write_Byte(MAX30102_Device_address,REG_MODE_CONFIG,0x03);//0x02 for Red only, 0x03 for SpO2 mode 0x07 multimode LED
IIC_Write_Byte(MAX30102_Device_address,REG_SPO2_CONFIG,0x27); // SPO2_ADC range = 4096nA, SPO2 sample rate (50 Hz), LED pulseWidth (400uS)
IIC_Write_Byte(MAX30102_Device_address,REG_LED1_PA,0x32);//Choose value for ~ 10mA for LED1
IIC_Write_Byte(MAX30102_Device_address,REG_LED2_PA,0x32);// Choose value for ~ 10mA for LED2
IIC_Write_Byte(MAX30102_Device_address,REG_PILOT_PA,0x7f);// Choose value for ~ 25mA for Pilot LED
}
void max30102_read_fifo(void)
{
uint16_t un_temp;
fifo_red=0;
fifo_ir=0;
uint8_t ach_i2c_data[6];
//read and clear status register
IIC_Read_Byte(MAX30102_Device_address,REG_INTR_STATUS_1);
IIC_Read_Byte(MAX30102_Device_address,REG_INTR_STATUS_2);
ach_i2c_data[0]=REG_FIFO_DATA;
IIC_Read_Array(MAX30102_Device_address,REG_FIFO_DATA,ach_i2c_data,6);
un_temp=ach_i2c_data[0];
un_temp<<=14;
fifo_red+=un_temp;
un_temp=ach_i2c_data[1];
un_temp<<=6;
fifo_red+=un_temp;
un_temp=ach_i2c_data[2];
un_temp>>=2;
fifo_red+=un_temp;
un_temp=ach_i2c_data[3];
un_temp<<=14;
fifo_ir+=un_temp;
un_temp=ach_i2c_data[4];
un_temp<<=6;
fifo_ir+=un_temp;
un_temp=ach_i2c_data[5];
un_temp>>=2;
fifo_ir+=un_temp;
if(fifo_ir<=10000)
{
fifo_ir=0;
}
if(fifo_red<=10000)
{
fifo_red=0;
}
}

復(fù)制代碼

Keil代碼下載:

stm32f103c8t6_MAX30102帶簡單算法.7z (2.17 MB, 下載次數(shù): 52)

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max30102+stm32f103單片機測試程序

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