定时器驱动数码管c语言程序,74hc595驱动数码管时间程序

74hc595驱动数码管时间程序

这里是电路图：

下面是51单片机驱动74hc595芯片的程序：

#include                            //包含51单片机的头文件

#include

#define uint unsigned int

#define uchar unsigned char

//sbit sin_595    =P1^0;

//sbit rclk_595   =P1^1;

//sbit sclk_595   =P1^2;

//sbit s_clr      =P1^3;

sbit  a_cp_595   =P2^4;      //串行移位时钟脉冲  sh_cp_595

sbit  b_cp_595   =P2^3;      //输出锁存器控制脉冲 st_cp_595

//sbit  _oe_595    =P1^5;