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573锁存器驱动8段数码管

发布时间:2015-11-10 21:01:22
#include <reg51.h> #define SEG P2 sbit P1_0 = P1^0; sbit P1_1 = P1^1; sbit P1_2 = P1^2; sbit P1_3 = P1^3; sbit P1_4 = P1^4; unsigned ...

573锁存器驱动8段数码管

#include <reg51.h> #define SEG P2  sbit P1_0 = P1^0; sbit P1_1 = P1^1; sbit P1_2 = P1^2; sbit P1_3 = P1^3; sbit P1_4 = P1^4; unsigned char code tab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x3c,0x07,0x7f,0x37}; void delay(int x); void main(){   while(1)  //2015    {     P1_0 =0; //573 低电平使能  SEG =tab[2]; //送段位  P1_1 = 0;  //点亮数码管      P1_0 = 1;  //关闭锁存  P1_1 = 1;  //关闭数码管          P1_0 =0; //573 低电平使能  SEG =tab[0];  P1_2 = 0;      P1_0 = 1;  P1_2 = 1;                 P1_0 =0; //573 低电平使能  SEG =tab[1];  P1_3 = 0;       P1_0 = 1;  P1_3 = 1;      P1_0 =0; //573 低电平使能  SEG =tab[5];  P1_4 = 0;       P1_0 = 1;  P1_4 = 1;              }   }void delay(int x) //6ms*x  23MHZ晶振{  int i,j;  for( i=0;i<x;i++)  for( j =0;j<12000;j++);}

原标题:573锁存器驱动8段数码管

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