基于单片机病房呼叫系统控制系统设计-毕设课设资料

Posted 2021-05-15 Mr song song

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#include <reg51.h>
#define uint unsigned int
#define uchr unsigned char
sbit led0=P2^2;
sbit buzzer=P2^3;
sbit dula=P2^6;                //声明段选线选通端
sbit wela=P2^7;                //声明位选线选通端
sbit clear=P3^4;
uchr key,shi,ge,count;
uchr code tab[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71,
0x76,0x79,0x38,0x3f};
/*延时子函数，xms为形参*/
void delay(uint xms)
{
    uint x,y;
    for(x=xms;x>0;x--)
        for(y=110;y>0;y--);
}