MAX30102心率模块程序改过的但是显示还是有点问题求大佬指正问题 -

#include "stm32f10x.h"
#include "usart.h"
#include "oled.h"
#include "word.h"
#include "delay.h"
#include "max30102.h"
#include "30102_algorithm.h"
#include "IIC.h"
#define MAX_BRIGHTNESS 255
uint32_t aun_ir_buffer[500]; //IR LED sensor data
int32_t n_ir_buffer_length; //data length
uint32_t aun_red_buffer[500]; //Red LED sensor data
int32_t n_sp02; //SPO2 value
int8_t ch_spo2_valid; //indicator to show if the SP02 calculation is valid
int32_t n_heart_rate; //heart rate value
int8_t ch_hr_valid; //indicator to show if the heart rate calculation is valid
uint8_t uch_dummy;
int32_t hr_buf[16];
int32_t hrSum;
int32_t hrAvg;
int32_t spo2_buf[16];
int32_t spo2Sum;
int32_t spo2Avg;
int32_t spo2BuffFilled;
int32_t hrBuffFilled;
int32_t hrValidCnt = 0;
int32_t spo2ValidCnt = 0;
int32_t hrThrowOutSamp = 0;
int32_t spo2ThrowOutSamp = 0;
int32_t spo2Timeout = 0;
int32_t hrTimeout = 0;
int main(void)
{
// char buf[] = {"Red = "};
//char buf1[] = {"Ir = "};
char buf2[] = {"HR = "};
char buf3[] = {"SpO2 = "};
//char buf[] = {"There is no luck"};
//char buf1[] = {"There is only"};
//char buf2[] = {"word."};
//char author[] = {"Qing"};
int i;
float f_temp;
uint32_t un_min, un_max, un_prev_data; //variables to calculate the on-board LED brightness that reflects the heartbeats
int32_t n_brightness;
delay_init();
Oled_Init();
//Oled_Display_String(, 0, buf); //显示字符串
//Oled_Display_String(2, 0, buf1); //显示字符串
Oled_Display_String(0, 0, buf2); //显示字符串
Oled_Display_String(4, 0, buf3);
//Oled_Display_Pic(128,64,0,0,pic);
//uint8_t IIC_Flag=1;//IIC通信状态，0为成功1为失败
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);// 设置中断优先级分组2
delay_init(); //延时函数初始化
uart_init(115200); //串口初始化为9600
IIC_Init();
if(!maxim_max30102_reset())//复位 MAX30102
printf("max30102_reset failed!\r\n");
if(!maxim_max30102_read_reg(REG_INTR_STATUS_1,&uch_dummy))//读取并清除状态寄存器
printf("read_reg REG_INTR_STATUS_1 failed!\r\n");
if(!maxim_max30102_init())//初始化MAX30102
printf("max30102_init failed!\r\n");
//printf("指示灯亮了吗？\r\n");
n_brightness = 0;
un_min = 0x3FFFF;
un_max = 0;
n_ir_buffer_length = 500; //缓冲区长度为100存储以100sps运行的5秒样本
printf("采集500个样本\r\n");
//读取前500个样本，并确定信号范围
for(i = 0; i < n_ir_buffer_length; i++)
{
while(max30102_INTPin == 1); //等待MAX30102中断引脚拉低
maxim_max30102_read_fifo((aun_ir_buffer+i), (aun_red_buffer+i)); //从MAX30102 FIFO读取
if(un_min > aun_red_buffer[i])
un_min = aun_red_buffer[i]; //更新信号最小值
if(un_max < aun_red_buffer[i])
un_max = aun_red_buffer[i]; //更新信号最大值
printf("red=");
printf("%i", aun_red_buffer[i]);
printf(", ir=");
printf("%i\r\n", aun_ir_buffer[i]);
}
un_prev_data = aun_red_buffer[i];
//计算前500个样本后的心率和血氧饱和度（样本的前5秒）
maxim_heart_rate_and_oxygen_saturation(aun_ir_buffer, n_ir_buffer_length, aun_red_buffer, &n_sp02, &ch_spo2_valid, &n_heart_rate, &ch_hr_valid);
//从MAX30102连续取样。每1秒计算一次心率和血氧饱和度
while(1)
{
i = 0;
un_min = 0x3FFFF;
un_max = 0;
//转储内存中的前100组样本，并将最后400组样本移到顶部
for(i = 100; i < 500; i++)
{
aun_red_buffer[i-100] = aun_red_buffer[i];
aun_ir_buffer[i-100] = aun_ir_buffer[i];
//update the signal min and max
if(un_min > aun_red_buffer[i])
un_min = aun_red_buffer[i];
if(un_max < aun_red_buffer[i])
un_max = aun_red_buffer[i];
}
//在计算心率之前采集100组样本。
for(i = 400; i < 500; i++)
{
un_prev_data = aun_red_buffer[i-1];
while(max30102_INTPin == 1); //等待MAX30102中断引脚拉低
maxim_max30102_read_fifo((aun_ir_buffer+i), (aun_red_buffer+i));
if(aun_red_buffer[i] > un_prev_data)//根据相邻两个AD数据的偏差来确定LED的亮度
{
f_temp = aun_red_buffer[i] - un_prev_data;
f_temp /= (un_max-un_min);
f_temp *= MAX_BRIGHTNESS;
n_brightness -= (int)f_temp;
if(n_brightness < 0)
n_brightness = 0;
}
else
{
f_temp = un_prev_data-aun_red_buffer[i];
f_temp /= (un_max-un_min);
f_temp *= MAX_BRIGHTNESS;
n_brightness += (int)f_temp;
if(n_brightness > MAX_BRIGHTNESS)
n_brightness = MAX_BRIGHTNESS;
}
//通过UART向终端程序发送样本和计算结果
printf("red=");
printf("%i", aun_red_buffer[i]);
printf(", ir=");
printf("%i", aun_ir_buffer[i]);
printf(", HR=%i, ", n_heart_rate);
printf("HRvalid=%i, ", ch_hr_valid);
printf("SpO2=%i, ", n_sp02);
printf("SPO2Valid=%i\r\n", ch_spo2_valid);
}
//OLED_ShowInt(0, 60, aun_red_buffer[i]); //显示数据
//OLED_ShowInt(2, 60, aun_ir_buffer[i]); //显示数据
OLED_ShowInt(0, 60, n_heart_rate); //显示数据
OLED_ShowInt(4, 60, n_sp02); //显示数据
maxim_heart_rate_and_oxygen_saturation(aun_ir_buffer, n_ir_buffer_length, aun_red_buffer, &n_sp02, &ch_spo2_valid, &n_heart_rate, &ch_hr_valid);
}
}
/*
int main(void)
{
char buf[] = {"There is no luck"};
char buf1[] = {"There is only"};
char buf2[] = {"word."};
char author[] = {"Qing"};
delay_init();
Oled_Init();
while(1)
{
Oled_Display_Pic(128,64,0,0,pic);
}
}
// Oled_Display_Char(0,0,'A');//显示单个字符
//There is no luck.There is only work.幸运是不存在的，努力才是硬道理。
//Oled_Display_String(0,0,buf); //显示字符串
//Oled_Display_String(2,0,buf1); //显示字符串
//Oled_Display_String(4,0,buf2); //显示字符串
//Oled_Display_String(6,80,author);
// Oled_Display_Pic(128,64,0,0,pic);//显示图片
// Oled_Display_Pic(32,32,2,48,chain);//显示汉字
*/

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