三个74HC595控制16位数码管显示0~F单片机程序PCB,非常感谢热心大哥教导

ID:793314 · 发表于 2022-5-5 18:05

制作出来的实物图如下：

Altium Designer画的PCB图如下：(51hei附件中可下载工程文件)

单片机源程序如下:
include "reg51.h"
#include "intrins.h"

sfr P5 = 0xC8;
sfr P1M0 = 0X92;
sfr P1M1 = 0x91;
sfr P3M0 = 0XB2;
sfr P3M1 = 0xB1;
sfr P5M0 = 0XCA;
sfr P5M1 = 0xC9;

sbit S_RCLK = P1^7;//位移动信号
sbit L_RCLK = P1^6;//平行输出信号
sbit S_BIT  = P1^5;//位输入

//bit ;  //标志位，虚拟的按键
unsigned char ct;
//unsigned int  //255 65536
unsigned char code SEG_tab[]={0x3f,0x06,0x5b,0x4f,
            0x66,0x6d,0x7d,0x07,
            0x7f,0x6f,0x77,0x7c,
            0x39,0x5e,0x79,0x71,0x40,0x80};

void Send_595(unsigned char x);
void Delay1ms();

main(void)
{
P1M0 = 0X00;
P1M1 = 0X00; //0000 0000
P3M0 = 0X00; //0000 1000
P3M1 = 0X00;
P5M0 = 0X00;
P5M1 = 0X00;
L_RCLK = 0;
S_RCLK = 0;
S_BIT  = 0;//位输入
while(1)
{
            static unsigned char ct=0;
      unsigned int j=0;
      j=~(0x01<<ct);
            Send_595(j>>8);//片选相数码管位码高8位
      Send_595(j);//片选相数码管位码低8位
      Send_595(SEG_tab[ct]);//数码管数据
      L_RCLK = 1;
      L_RCLK = 0;
      Delay1ms();
      if(ct<16)
      {
         ct++;
      }
      else ct=0;
}
}

void Send_595(unsigned char x)
{
unsigned char i;
for(i=0;i<8;i++)
{
      if(x&0x80) S_BIT = 1;
      else    S_BIT = 0;
      S_RCLK = 1;
      S_RCLK = 0;
      x = x<<1;
}
}

void Delay1ms()             //@11.0592MHz
{
      unsigned char i, j;

      i = 15;
      j = 90;
      do
      {
            while (--j);
      } while (--i);
}

PCB文件下载:

HC595_Digital_Tube_2022-04-21.PcbDoc_2022-05-05.zip (16.59 KB, 下载次数: 28)

595原理图.pdf (284.1 KB, 下载次数: 32)

seg802.zip (821 Bytes, 下载次数: 29)