74hc595.c

口若悬河口若悬河口若悬河口若悬河口若悬河口若悬河口若悬河口若悬河口若悬河

#include"reg52.h"
#define uchar unsigned char
uchar seg[]={0x03,0x9f,0x25,0x0d,0x99,0x49,0x41,0x1f,0x01,0x09,0x11,0xc1,
    0x63,0x85,0x61,0x71};	 //0-F笔段码倒写
bit T1s=0;
uchar counter=0;
sbit P35=P3^5;
/************初始化T1、T0，波特率4800，不倍增，8位自动重装******************/
void init1()
{
P35=0;
SCON=0;
TL1=0xfa;
TH1=0xfa;
TMOD=0x21;
TL0=0xd0;TH0=0x8a; //20MS
ET0=1;	 //T0允许
TR0=1;
ET1=0;//T1禁止中断，只用于计数
//TI=0;
ES=0;
EA=1;
TR1=1;
}

void timer1() interrupt 1
{
TL0=0xd0;TH0=0x8a;
counter++;
if(counter==50)
{
T1s=1;
counter=0;
}
}

void main()
{
uchar j=0;
init1();
while(1)
{
if(T1s)
{
T1s=0;
//ACC=seg[j];
TI=0;
SBUF=seg[j];
j++;
if(j==16)
j=0;
while(TI==0);
{
P35=1;
P35=1;	//上升沿锁存数据
TI=0;
P35=0;
}
}
}
}