心率仪原理图带仿真及代码源程序

ID:212458 · 发表于 2017-6-19 09:34

仿真图

原理图：

单片机源程序：

#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); //误差 0us
void LCD_WriteData(uchar LCD_1602_DATA); /********LCD1602数据写入***********/
void LCD_WriteCom(uchar LCD_1602_COM); /********LCD1602命令写入***********/
void lcd_1602_word(uchar Adress_Com,uchar Num_Adat,uchar *Adress_Data); /*1602字符显示函数，变量依次为字符显示首地址，显示字符长度，所显示的字符*/
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函数*******************/
void LCD_WriteData(uchar LCD_1602_DATA) /********LCD1602数据写入***********/
{
delay5ms(); //操作前短暂延时，保证信号稳定
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命令写入***********/
void LCD_WriteCom(uchar LCD_1602_COM)
{
delay5ms();//操作前短暂延时，保证信号稳定
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); //显示光标移动位置
LCD_WriteCom(0x0c); //显示开及光标设置
LCD_WriteCom(0x01); //显示清屏
delay5ms();
delay5ms();
}
void delay5ms(void) //误差 0us
{
unsigned char a,b;
for(b=185;b>0;b--)
for(a=12;a>0;a--);
}