16*16 dot matrix Chinese character display simulation plus source code using 74hc595 driver chip

The schematic diagram of the 16*16 dot matrix simulation of the single chip microcomputer is as follows

The dot matrix cannot be directly connected to the microcontroller due to the large current, so 74hc595 is used to drive the serial-to-parallel chip, which can also be controlled with very few IO ports.

The microcontroller source program is as follows:

#include "reg51.h"

#define uchar unsigned char

#define uint  unsigned int

#define Lie   P1

sbit SHCP = P2^0;

sbit DS = P2^1;

sbit STCP = P2^2;

uchar code led[ ] ={

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

0x08,0x40,0x08,0x40,0x0A,0x48,0xEA,0x4B,0xAA,0x4A,0xAA,0x4A,0xAA,0x4A,0xFE,0x7F,

0xAA,0x4A,0xAA,0x4A,0xA9,0x4A,0xF9,0x4B,0x29,0x48,0x0C,0x60,0x08,0x40,0x00,0x00, // 重

0x00,0x40,0x00,0x20,0xFC,0x9F,0x44,0x80,0x44,0x40,0x44,0x20,0x44,0x18,0x45,0x06,

0xFE,0x01,0x44,0x06,0x44,0x18,0x44,0x20,0x66,0x40,0x44,0xC0,0x00,0x40,0x00,0x00, //Celebration

0x80,0x80,0x80,0x40,0xFC,0x3F,0x96,0x02,0xA5,0x44,0x84,0x80,0xFC,0x7F,0x08,0x80,

0x08,0x40,0xC9,0x3F,0x4A,0x00,0x4E,0x00,0xE8,0x3F,0x4C,0x40,0x08,0x70,0x00,0x00, //航

0x40,0x80,0x42,0x80,0x42,0x40,0x42,0x20,0x42,0x10,0x42,0x0C,0x42,0x03,0xFE,0x00,

0x42,0x03,0x42,0x0C,0x42,0x10,0x42,0x20,0x43,0x40,0x62,0xC0,0x40,0x40,0x00,0x00, //day

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

}; 

//uchar led[]={}

void shift16bit(uchar dat1,uchar dat2) //595 outputs 16-bit data

{

flying i;

STCP=0;        

for(i=0;i<8;i++)

  {

   SHCP=0;

   if(dat1 &0x80) DS=1;

     else DS=0;

    dat1<<=1;

   SHCP=1;

  }

  for(i=0;i<8;i++)

  {

   SHCP=0;

   if(dat2 &0x80) DS=1;

     else DS=0;

    dat2<<=1;

   SHCP=1;

  }

STCP=1;

}

void delay(uint x)

{

uint i;

for(i=0;i}

void main()

{

fly i,x=0;

uint n;

while(1)

{

for(n=0;n<10;n++) 

for(i=0;i<16;i++)

  {

   Lie=i;

   shift16bit(led[2*i+1+2*x],led[2*i+2*x]);

   delay(100);

  }

  x++;

if(x==64) x=0;

/*

for(n=0;n<100;n++)

……………………