標(biāo)題: 基于51單片機(jī)的心率計(jì)程序設(shè)計(jì) [打印本頁(yè)]
作者: 很不回復(fù) 時(shí)間: 2019-6-10 21:14
標(biāo)題: 基于51單片機(jī)的心率計(jì)程序設(shè)計(jì)
一.原理圖
QQ截圖20190610210618.png (63.56 KB, 下載次數(shù): 42)
下載附件
2019-6-10 21:07 上傳
二.程序
#include <reg52.h>
#include <intrins.h>
#define uint unsigned int
#define uchar unsigned char
#define ulong unsigned long
#define LCD_DATA P0
sbit LCD_RS =P2^5;
sbit LCD_RW =P2^6;
sbit LCD_E =P2^7;
sbit Xintiao =P1^0 ;
sbit speaker =P2^4;
void delay5ms(void); //誤差 0us
void LCD_WriteData(uchar LCD_1602_DATA); /********LCD1602數(shù)據(jù)寫入***********/
void LCD_WriteCom(uchar LCD_1602_COM); /********LCD1602命令寫入***********/
void lcd_1602_word(uchar Adress_Com,uchar Num_Adat,uchar *Adress_Data); /*1602字符顯示函數(shù)，變量依次為字符顯示首地址，顯示字符長(zhǎng)度，所顯示的字符*/
void InitLcd();
void Tim_Init();
uchar Xintiao_Change=0;
uint Xintiao_Jishu;
uchar stop;
uchar View_Data[3];
uchar View_L[3];
uchar View_H[3];
uchar Xintiao_H=100;
uchar Xintiao_L=40;
uchar Key_Change;
uchar Key_Value;
uchar View_Con;
uchar View_Change;
void main()
{
InitLcd();
Tim_Init();
lcd_1602_word(0x80,16,"Heart Rate: ");
TR0=1;
TR1=1;
while(1)
{
if(Key_Change)
{
Key_Change=0;
View_Change=1;
switch(Key_Value)
{
case 1:
{
View_Con++;
if(View_Con==3)
View_Con=0;
break;
}
case 2:
{
if(View_Con==2)
{
if(Xintiao_H<150)
Xintiao_H++;
}
if(View_Con==1)
{
if(Xintiao_L<Xintiao_H-1)
Xintiao_L++;
}
break;
}
case 3:
{
if(View_Con==2)
{
if(Xintiao_H>Xintiao_L+1)
Xintiao_H--;
}
if(View_Con==1)
{
if(Xintiao_L>30)
Xintiao_L--;
}
break;
}
}
}
if(View_Change)
{
View_Change=0;
if(stop==0)
{
if(View_Data[0]==0x30)
View_Data[0]=' ';
}
else
{
View_Data[0]=' ';
View_Data[1]=' ';
View_Data[2]=' ';
}
switch(View_Con)
{
case 0:
{
lcd_1602_word(0x80,16,"Heart Rate: ");
lcd_1602_word(0xc0,16," ");
lcd_1602_word(0xcd,3,View_Data);
break;
}
case 1:
{
lcd_1602_word(0x80,16,"Heart Rate: ");
lcd_1602_word(0x8d,3,View_Data);
View_L[0]=Xintiao_L/100+0x30;
View_L[1]=Xintiao_L%100/10+0x30;
View_L[2]=Xintiao_L%10+0x30;
if(View_L[0]==0x30)
View_L[0]=' ';
lcd_1602_word(0xC0,16,"Warning L : ");
lcd_1602_word(0xCd,3,View_L);
break;
}
case 2:
{
lcd_1602_word(0x80,16,"Heart Rate: ");
lcd_1602_word(0x8d,3,View_Data);
View_H[0]=Xintiao_H/100+0x30;
View_H[1]=Xintiao_H%100/10+0x30;
View_H[2]=Xintiao_H%10+0x30;
if(View_H[0]==0x30)
View_H[0]=' ';
lcd_1602_word(0xC0,16,"Warning H : ");
lcd_1602_word(0xCd,3,View_H);
break;
}
}
}
}
}
void Time1() interrupt 3
{
static uchar Key_Con,Xintiao_Con;
TH1=0xd8; //10ms
TL1=0xf0;
switch(Key_Con)
{
case 0:
{
if((P3&0x07)!=0x07)
{
Key_Con++;
}
break;
}
case 1:
{
if((P3&0x07)!=0x07)
{
Key_Con++;
switch(P3&0x07)
{
case 0x06:Key_Value=1;break;
case 0x05:Key_Value=2;break;
case 0x03:Key_Value=3;break;
}
}
else
{
Key_Con=0;
}
break;
}
case 2:
{
if((P3&0x07)==0x07)
{
Key_Change=1;
Key_Con=0;
}
break;
}
}
switch (Xintiao_Con)
{
case 0:
{
if(!Xintiao)
{
Xintiao_Con++;
}
break;
}
case 1:
{
if(!Xintiao)
{
Xintiao_Con++;
}
else
{
Xintiao_Con=0;
}
break;
}
case 2:
{
if(!Xintiao)
{
Xintiao_Con++;
}
else
{
Xintiao_Con=0;
}
break;
}
case 3:
{
if(!Xintiao)
{
Xintiao_Con++;
}
else
{
Xintiao_Con=0;
}
break;
}
case 4:
{
if(Xintiao)
{
if(Xintiao_Change==1)
{
View_Data[0]=(60000/Xintiao_Jishu)/100+0x30;
View_Data[1]=(60000/Xintiao_Jishu)%100/10+0x30;
View_Data[2]=(60000/Xintiao_Jishu)%10+0x30;
if(((60000/Xintiao_Jishu)>=Xintiao_H)||((60000/Xintiao_Jishu)<=Xintiao_L))
speaker=0;
else
speaker=1;
View_Change=1;
Xintiao_Jishu=0;
Xintiao_Change=0;
stop=0;
}
else
{
Xintiao_Jishu=0;
Xintiao_Change=1;
}
Xintiao_Con=0;
break;
}
}
}
}
void Time0() interrupt 1
{
TH0=0xfc; //1ms
TL0=0x18;
Xintiao_Jishu++;
if(Xintiao_Jishu==5000)
{
Xintiao_Jishu=0;
View_Change=1;
Xintiao_Change=0;
stop=1;
speaker=1;
}
}
void Tim_Init()
{
EA=1;
ET0=1;
ET1=1;
TMOD=0x11;
TH0=0xfc; //1ms
TL0=0x18;
TH1=0xd8; //10ms
TL1=0xf0;
}
void lcd_1602_word(uchar Adress_Com,uchar Num_Adat,uchar *Adress_Data)
{
uchar a=0;
uchar Data_Word;
LCD_WriteCom(Adress_Com);
for(a=0;a<Num_Adat;a++)
{
Data_Word=*Adress_Data;
LCD_WriteData(Data_Word);
Adress_Data++;
}
}
/***************1602函數(shù)*******************/
void LCD_WriteData(uchar LCD_1602_DATA) /********LCD1602數(shù)據(jù)寫入***********/
{
delay5ms(); //操作前短暫延時(shí)，保證信號(hào)穩(wěn)定
LCD_E=0;
LCD_RS=1;
LCD_RW=0;
_nop_();
LCD_E=1;
LCD_DATA=LCD_1602_DATA;
LCD_E=0;
LCD_RS=0;
}
/********LCD1602命令寫入***********/
void LCD_WriteCom(uchar LCD_1602_COM)
{
delay5ms();//操作前短暫延時(shí)，保證信號(hào)穩(wěn)定
LCD_E=0;
LCD_RS=0;
LCD_RW=0;
_nop_();
LCD_E=1;
LCD_DATA=LCD_1602_COM;
LCD_E=0;
LCD_RS=0;
}
void InitLcd()
{
delay5ms();
delay5ms();
LCD_WriteCom(0x38); //display mode
LCD_WriteCom(0x38); //display mode
LCD_WriteCom(0x38); //display mode
LCD_WriteCom(0x06); //顯示光標(biāo)移動(dòng)位置
LCD_WriteCom(0x0c); //顯示開及光標(biāo)設(shè)置
LCD_WriteCom(0x01); //顯示清屏
delay5ms();
delay5ms();
}
void delay5ms(void) //誤差 0us
{
unsigned char a,b;
for(b=185;b>0;b--)
for(a=12;a>0;a--);
}
有什么問題私聊我。
作者: brewster 時(shí)間: 2019-6-11 19:46
那個(gè)心率是怎么采集的?
作者: 123AFWEFG 時(shí)間: 2020-11-29 15:28
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit rs=P1^0; //數(shù)據(jù)與命令選擇控制引腳
sbit rw=P1^1; //讀與寫選擇控制引腳
sbit en=P1^2; //使能擇控制引腳
sbit bf=P0^7; //忙標(biāo)志位
sbit P32=P3^2;
unsigned char i=0,timecount=0,displayOK=0,rate=0,aa=0;
unsigned int time[6]={0};
/************ 延時(shí)函數(shù) *****************/
void delay(uint z)
{
while(z--);
}
/************ 忙檢測(cè)函數(shù) *****************/
void jiance()
{
P0=0xff;
rs=0;rw=1;en=1;
while(bf); //如果BF==1表示液晶在忙
en=0;
}
/************ 寫命令函數(shù) *****************/
void write_com(uchar com)
{
jiance();
P0=com;
rs=0;rw=0;en=1;
delay(2);
en=0;
}
/************ 寫數(shù)據(jù)函數(shù) *****************/
void write_dat(uchar dat)
{
jiance();
P0=dat;
rs=1;rw=0;en=1;
delay(2);
en=0;
}
/************ 1602液晶初始化函數(shù) *****************/
void init_lcd()
{
write_com(0x38); // 設(shè)置16*2顯示，5*7點(diǎn)陣，8位數(shù)據(jù)接口
write_com(0x0c); // 開顯示，不顯示光標(biāo)
write_com(0x06); // 地址加1，當(dāng)寫入數(shù)據(jù)的時(shí)候光標(biāo)右移
write_com(0x01); //清屏
}
/******************************************************************/
/* 在指定位置寫字符 */
/******************************************************************/
void LCD_write_char(unsigned char x,unsigned char y,unsigned char Data)
{
if (y == 0)
write_com(0x80 + x);
else
write_com(0xC0 + x);
write_dat(Data);
}
void DelayMs(unsigned int z)
{
unsigned int x;
for(;z>0;z--)
for(x=110;x>0;x--);
}
void main()
{
P32=1;
init_lcd();//lcd初始化
TCON=0x01;//設(shè)置外部中斷0
EX0=1;
TMOD=0x01;//定時(shí)器0初始化
TH0=(65536-50000)/256;//實(shí)測(cè)每50ms中斷的定時(shí)值
TL0=(65536-50000)%256;
ET0=1;//開定時(shí)器中斷
//顯示基本文字
LCD_write_char(3,0,'H');
LCD_write_char(4,0,'e');
LCD_write_char(5,0,'a');
LCD_write_char(6,0,'r');
LCD_write_char(7,0,'t');
LCD_write_char(8,0,' ');
LCD_write_char(9,0,'R');
LCD_write_char(10,0,'a');
LCD_write_char(11,0,'t');
LCD_write_char(12,0,'e');
LCD_write_char(8,1,'/');
LCD_write_char(9,1,'m');
LCD_write_char(10,1,'i');
LCD_write_char(11,1,'n');
TR0=0;//定時(shí)器停止
EA=1;//開總中斷
while(1)
{
if(displayOK==1)
{
rate=60000/(time[1]/5+time[2]/5+time[3]/5+time[4]/5+time[5]/5);
LCD_write_char(5,1,rate/100+48);
LCD_write_char(6,1,(rate%100)/10+48);
LCD_write_char(7,1,rate%10+48);
}
DelayMs(300);
}
}
void ex0() interrupt 0
{
EX0=0;//暫時(shí)關(guān)外部中斷
if(timecount<8) //當(dāng)連續(xù)兩次檢測(cè)時(shí)間間隔小于8*50ms=400ms不處理
{
TR0=1;//開定時(shí)器
}
else
{
time[i]=timecount*50+TH0*0.256+TL0/1000;//算出間隔時(shí)間
TL0=(65536-50000)%256;//重新設(shè)置定時(shí)器
TH0=(65536-50000)/256;
timecount=0;//50ms計(jì)數(shù)清零
i++;
if(i==6)//記錄到超過等于6次時(shí)間
{
i=1;//計(jì)數(shù)從1開始
displayOK=1; //測(cè)得5次開始顯示
}
}
EX0=1;
}
void et0() interrupt 1
{
TL0=(65536-50000)%256;
TH0=(65536-50000)/256;
timecount++;//每50ms一次計(jì)數(shù)
if(timecount>25) //當(dāng)超過25*50ms=1.25s沒有檢測(cè)到信號(hào)停止顯示
{
i=0;//數(shù)據(jù)個(gè)數(shù)清零
timecount=0;//50ms計(jì)數(shù)清零
displayOK=0;//顯示關(guān)
TR0=0;//定時(shí)器關(guān)
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
}
}
| 歡迎光臨 (http://www.raoushi.com/bbs/) |
Powered by Discuz! X3.1 |