基于单片机数码管脉搏测量系统设计

1484下载地址 https://docs.qq.com/doc/DWEpnR2pOWU91b3p4?pub=1&dver=2.1.0

#include <reg52.h>
#include <intrins.h> 
#define uchar  unsigned char
#define uint   unsigned int
//共阳极数码管段码
uchar code SEG7[]={/*0,1,2,3,4,5,6,7,8,9,*/0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,};
uchar sx=60; //显示时间
uint  hz=0;//脉搏
uchar run;//开始
uchar bz;//报警标志
//计数变量
uchar num1;
uchar num2;
uchar num3;
//数码管位码端口
sbit      P20=P2^0;
sbit      P21=P2^1;
sbit      P22=P2^2;
sbit      P23=P2^3;
sbit      P24=P2^4;
sbit      P25=P2^5;
//开始停止-----------------------
sbit      P26=P2^6;
sbit      P27=P2^7;
//报警-----------------------
sbit      P10=P1^0;
sbit      P11=P1^1;
//延时函数ms
void delayms(uint t)
{
   uint i,j;
   for(i=0;i<t;i++)
     for(j=0;j<120;j++);
}
//数码管显示