给我一个stm32的max30102算法代码
时间: 2023-12-29 19:01:47 浏览: 41
以下是一个基于STM32的MAX30102算法代码示例,可以用于心率和血氧测量:
```
#include "main.h"
#include "MAX30102.h"
#define MAX_BRIGHTNESS 255
#define SAMPLES_PER_SECOND 100
volatile uint32_t irBuffer[SAMPLES_PER_SECOND];
volatile uint32_t redBuffer[SAMPLES_PER_SECOND];
volatile uint32_t bufferHead;
volatile uint32_t bufferTail;
void setup(void){
Serial.begin(115200);
Serial.println("Initializing...");
bufferHead = bufferTail = 0;
maxim_max30102_reset();
maxim_max30102_read_reg(REG_INTR_STATUS_1,&uch_dummy);
maxim_max30102_init();
maxim_max30102_read_reg(REG_INTR_ENABLE_1,&uch_dummy);
uch_dummy|=0xc0;
maxim_max30102_write_reg(REG_INTR_ENABLE_1,uch_dummy);
maxim_max30102_read_reg(REG_FIFO_WR_PTR,&uch_fifo_wr_ptr);
maxim_max30102_read_reg(REG_OVF_COUNTER,&uch_fifo_ovf_counter);
maxim_max30102_read_reg(REG_FIFO_RD_PTR,&uch_fifo_rd_ptr);
}
void loop(void){
while (maxim_max30102_available() == true){
maxim_max30102_read_fifo((irBuffer+bufferHead), (redBuffer+bufferHead));
bufferHead++;
bufferHead %= SAMPLES_PER_SECOND;
if (bufferHead == bufferTail){
Serial.println("Buffer overflow!");
bufferTail++;
bufferTail %= SAMPLES_PER_SECOND;
}
}
float ir_mean = 0;
float red_mean = 0;
for (uint32_t i = 0; i < SAMPLES_PER_SECOND; i++){
ir_mean += irBuffer[i];
red_mean += redBuffer[i];
}
ir_mean /= SAMPLES_PER_SECOND;
red_mean /= SAMPLES_PER_SECOND;
Serial.print("IR mean: ");
Serial.println(ir_mean);
Serial.print("Red mean: ");
Serial.println(red_mean);
delay(1000);
}
```
需要注意的是,此代码仅包含基本的MAX30102算法,您可能需要根据自己的需求进行更改和优化。另外,您还需要包含MAX30102库的头文件和源文件。
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