74ls595.c.txt

先声明

    // 先声明，本程序来自网上。要感谢就感谢原作者。                       
74LS595.C
// 6B595或74HC595显示123456
// 在程序初始化时  CLOCK=0;  LATCH=1;  ENABLE=0;

#include <reg51.h>
#define  uchar  unsigned char

uchar code DAT[18] = { 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x67,
0xbf,0x86,0xdb,0xcf,0xe6,0xed,0x00,0x40};
uchar DispDat[6] = { 1,2,3,4,5,6 };

sbit ENABLE = P3^3;
sbit SERIALIN = P3^2;
sbit CLOCK = P3^4;
sbit LATCH = P3^5;

void DispGroup(void)  // 6B595或74HC595显示123456
{
   uchar i, j, temp;
   for (i=0; i<6; i++) 
{
      temp=DAT[DispDat[i]];
      for (j=0;j<8;j++){
         temp=temp<<1; SERIALIN=CY; CLOCK=1; CLOCK=0;
      }
   }
  LATCH=0; 
LATCH=1;
}