51 single chip microcomputer 16*16LED dot matrix scrolling display

*

Function: LED 16*16 dot matrix scrolling display

Note: 74LS154 is used to send data, and P0 and P2 ports are used to select columns.

The best tool for viewing this program is preferably one with labels and syntax coloring, Keil or UltraEdit is recommended

Lazy Tips: How to change the display content to what you want?

1. To change the displayed content, change lines 23 to 92 and line 119. For specific changes, see the comments below.

2. To change the scroll speed, change line 102

*/

/*head File*/

#include

#include

/*Macro definition*/

#define uchar unsigned char

#define uint unsigned int

/*Function declaration*/

void delay();

/*Global variables*/

uint lie; //column selection flag

/**

Font: reverse display, vertical modulus, add 32 0xFF at the beginning and end to improve the continuity of the loop when the screen scrolls **/

/**

Hangzhou Bus Company K316, bound for Wulin Square, departure time 20:30, welcome to take it! -- ** Songti, 12 **/

/**

The dot matrix corresponding to the next Chinese character of the currently selected font is: width x height = 496x16, after adjustment: 496x16 **/

uchar code text[1056]={  

    //The data here is the amount of data you want to display + 64 (32 0xff before and after)

    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

    //Change the display content. Do not change the above two lines.

    0xEF,0xDF,0xEF,0x3F,0xE8,0xFF,0x00,0x00,0xED,0xFF,0xFE,0xFD,0xEF,0xF3,0xEC,0x0F,

    0x6D,0xFF,0x8D,0xFF,0xED,0xFF,0xEC,0x03,0xEF,0xFD,0xEF,0xFD,0xEF,0xE1,0xFF,0xFF,

    0xFF,0x7F,0xF8,0xFE,0xFF,0xF9,0xFF,0xE7,0x00,0x1F,0xFB,0xFF,0xFC,0xFF,0xFF,0xFF,

    0x80,0x01,0xF7,0xFF,0xF9,0xFF,0xFE,0x7F,0xFF,0xFF,0x00,0x00,0xFF,0xFF,0xFF,0xFF,

    0xDF,0xFF,0xDF,0xFF,0xDF,0xFF,0xD8,0x03,0xDB,0xFF,0xDB,0xFF,0x5B,0xFF,0x80,0x00,

    0xDB,0xFF,0xDB,0xFF,0xDB,0xF7,0xDB,0xFB,0xD8,0x07,0xDF,0xFF,0xDF,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xFF,0x7F,0xFE,0xFB,0xFD,0xF1,0xF3,0xEB,0x8F,0xDB,0xDE,0x3B,0xFF,0x73,

    0xFF,0xF7,0x8F,0xF7,0xF7,0xD7,0xF9,0xE1,0xFC,0xF3,0xFE,0x7F,0xFE,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xEF,0xFE,0xEE,0xFE,0xED,0xFD,0xE3,0x7D,0xEB,0xBB,0x6F,0xD7,0x8F,0xE7,

    0xCF,0xCF,0xEF,0x97,0xE6,0x3B,0xEB,0x79,0xE9,0xFC,0xED,0xFD,0xEF,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xFF,0x7F,0xFE,0xFB,0xFD,0xF1,0xF3,0xEB,0x8F,0xDB,0xDE,0x3B,0xFF,0x73,

    0xFF,0xF7,0x8F,0xF7,0xF7,0xD7,0xF9,0xE1,0xFC,0xF3,0xFE,0x7F,0xFE,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xF7,0xFF,0xB6,0x07,0xB6,0xDF,0xB6,0xDF,0xB6,0xDF,0xB6,0xDF,0xB6,0xDF,

    0xB6,0xDF,0xB6,0x0F,0xB7,0xFF,0xBF,0xFB,0xBF,0xFD,0x80,0x03,0xFF,0xFF,0xFF,0xFF,

    0xEF,0xFB,0xE0,0x03,0xEE,0xFB,0xFC,0x7F,0xEB,0x9B,0xE7,0xE3,0xEF,0xFB,0xFF,0xFF,

    0xFF,0xFF,0xF3,0xE7,0xEF,0xFB,0xEE,0xFB,0xEE,0xFB,0xED,0x77,0xF3,0x8F,0xFF,0xFF,

    0xFF,0xFF,0xF7,0xFB,0xF7,0xFB,0xE0,0x03,0xFF,0xFB,0xFF,0xFB,0xFF,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xF8,0x0F,0xF7,0x77,0xEE,0xFB,0xEE,0xFB,0xE7,0x77,0xFF,0x8F,0xFF,0xFF,

    0xFF,0xFB,0x81,0x03,0xBB,0xFB,0xB8,0x07,0x83,0x77,0xFB,0x77,0xF7,0xBF,0xEF,0x01,

    0x0F,0x3B,0xD2,0xBB,0xDD,0xBB,0xDA,0xBB,0xC6,0x81,0xDF,0x3F,0xFF,0x7F,0xFF,0xFF,

    0xFF,0xFE,0xFF,0xF2,0xFF,0xF1,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

    0xFD,0xFF,0xBD,0xFD,0xBD,0xFB,0xBD,0xF7,0xBD,0xCF,0x80,0x3F,0xBD,0xFF,0xBD,0xFF,

    0xBD,0xFF,0xBD,0xFF,0x80,0x01,0xBD,0xFF,0xBD,0xFF,0xBD,0xFF,0xBD,0xFF,0xFF,0xFF,

    0xFB,0xBF,0xF7,0x7F,0xEE,0xFF,0x10,0x00,0xBB,0xFF,0xEF,0xFD,0xEF,0x7D,0xEF,0x7D,

    0x6F,0x7D,0x80,0x01,0xAF,0x7D,0xEF,0x7D,0xEF,0x7D,0xEF,0x7D,0xEF,0xFD,0xFF,0xFF,

    0xF7,0xFD,0xF7,0xFD,0xD7,0x01,0xD7,0xFB,0xD7,0xFB,0xD4,0x07,0xD7,0x77,0xD7,0x77,

    0xF7,0x7F,0x01,0xFF,0xF6,0x1F,0xB7,0xE7,0xD7,0xFB,0xF7,0xFD,0xF7,0xF0,0xFF,0xFF,

    0xF7,0xEF,0xF7,0x9F,0xF6,0x7F,0x00,0x00,0xF6,0xFF,0xF7,0x37,0xFF,0xEF,0xF7,0xDF,

    0xF7,0x3F,0xF4,0xFF,0x00,0x00,0xF6,0x7F,0xF7,0x9F,0xF7,0xE7,0xF7,0xEF,0xFF,0xFF,

    0xFF,0xFD,0xFF,0xF3,0xC0,0x0F,0xDF,0xFF,0xDF,0xFF,0xDF,0xFF,0xDF,0xFF,0x5F,0xFF,

    0x9F,0xFF,0xDF,0xFF,0xDF,0xFF,0xDF,0xFF,0xDF,0xFF,0xDF,0xFF,0xDF,0xFF,0xFF,0xFF,

    0xF7,0xEF,0xF7,0xE7,0xF7,0xEF,0x00,0x1F,0xF7,0xDF,0xF7,0xBF,0xBF,0xAD,0xBD,0xDB,

    0xB9,0xB7,0xB4,0x6F,0xAD,0x9F,0x9C,0x7D,0xBD,0xFE,0xF8,0x01,0xFD,0xFF,0xFF,0xFF,

    0xFF,0xFE,0xFF,0xF2,0xFF,0xF1,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

    0xFF,0xFD,0xF7,0xFB,0x83,0xF7,0xF7,0xEE,0xF7,0x1E,0xF0,0x7D,0x06,0x9D,0xF6,0xEB,

    0xF6,0xF7,0xB6,0xEB,0xD6,0x1B,0xC7,0xFD,0xF7,0xFC,0xF7,0xFD,0xF7,0xFF,0xFF,0xFF,

    0xFF,0xDF,0xDF,0xDF,0xDE,0xDF,0xDC,0xDF,0xDA,0xDF,0xC6,0xDF,0x1E,0xDF,0xDE,0xDF,

    0xD0,0x00,0xDE,0xDF,0xDE,0xDF,0xDE,0xDF,0xDE,0xDF,0xDE,0xDF,0xFF,0xDF,0xFF,0xFF,

    0xFF,0xFF,0xC0,0x1F,0xDD,0xDF,0xDD,0xDF,0xDD,0xDF,0xC0,0x1F,0xF7,0xFF,0xF6,0xFF,

    0xF7,0x3F,0xF7,0xFD,0xF7,0xFE,0x00,0x01,0xF7,0xFF,0xF7,0xFF,0xF7,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xE0,0x00,0x7F,0xFF,0x9F,0xFF,0xFF,0xFF,0xF0,0x1F,0xB6,0xDF,0xB6,0xDF,

    0xB6,0xDF,0xB6,0xDF,0xB0,0x1F,0xBF,0xFD,0xBF,0xFE,0x80,0x01,0xFF,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xF1,0xF3,0xEF,0xEB,0xEF,0xDB,0xEF,0xBB,0xEE,0x7B,0xF1,0xF3,0xFF,0xFF,

    0xFF,0xFF,0xF8,0x0F,0xF7,0xF7,0xEF,0xFB,0xEF,0xFB,0xF7,0xF7,0xF8,0x0F,0xFF,0xFF,

    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFC,0xF3,0xFC,0xF3,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xF3,0xE7,0xEF,0xFB,0xEE,0xFB,0xEE,0xFB,0xED,0x77,0xF3,0x8F,0xFF,0xFF,

    0xFF,0xFF,0xF8,0x0F,0xF7,0xF7,0xEF,0xFB,0xEF,0xFB,0xF7,0xF7,0xF8,0x0F,0xFF,0xFF,

    0xFF,0xFE,0xFF,0xF2,0xFF,0xF1,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

    0xD7,0xFB,0xDB,0xF7,0xDD,0xCD,0xDE,0x3D,0xD9,0x3D,0xC7,0xCB,0xFB,0xFB,0xE7,0xF7,

    0x0F,0xCF,0xE8,0x3F,0xEF,0x9F,0xEF,0xE7,0xEB,0xF3,0xE7,0xF9,0xEF,0xFB,0xFF,0xFF,

    0xFD,0xFD,0x7D,0xFB,0x8C,0x07,0xDF,0xFB,0xFF,0xFD,0xC0,0x1D,0xDF,0xBD,0xBF,0x7D,

    0xBF,0xFD,0xC0,0x05,0xDF,0xFD,0xDF,0xBD,0xDF,0xDD,0xC0,0x3D,0xFF,0xFD,0xFF,0xFF,

    0xFB,0xFF,0xFB,0xFE,0xFB,0xFD,0xFB,0xFB,0xFB,0xF7,0xFB,0xCF,0xFA,0x3F,0x01,0xFF,

    0xFA,0x7F,0xFB,0x9F,0xFB,0xEF,0xFB,0xF3,0xFB,0xF9,0xFB,0xFC,0xFB,0xFD,0xFF,0xFF,

    0xFF,0xFF,0xE7,0x6B,0xDF,0x6B,0xD7,0x57,0xD6,0xD7,0xD6,0xAD,0x54,0x6E,0x92,0xDD,

    0xD7,0x03,0xD7,0x9F,0xD6,0x6F,0xDF,0x6F,0xD7,0xF7,0xCF,0xF3,0xDF,0xF7,0xFF,0xFF,

    0xEF,0xBB,0xEB,0xBB,0xAB,0x77,0xAB,0x77,0xA0,0x2F,0xAF,0xCF,0xAF,0x9F,0x80,0x01,

    0xAF,0xBF,0x6F,0xDF,0x60,0x4F,0x6D,0x67,0x6B,0x73,0xCB,0x77,0xEE,0x7F,0xFF,0xFF,

    0xFF,0x7D,0xFE,0xFD,0xF9,0xDD,0xC7,0xDD,0xFB,0xDD,0xFC,0xDD,0xFF,0xDD,0x00,0x01,

    0xFF,0x5D,0xFE,0xDD,0xFD,0xDD,0xC3,0xDD,0xFD,0xDD,0xFE,0xFD,0xFF,0xFD,0xFF,0xFF,

    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xF0,0x05,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

    //Change the display content. Do not change the following two lines.

    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,

    0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF

};

/*Main function*/

void

main()

{

    uchar i,j;

     uint m=0; //m is the counter when fetching data from the font array, used to change the content of the displayed text and the scrolling display effect

     SCON=0; 

    //Initialize the serial port to working mode 0 (synchronous communication mode, TxD outputs synchronous pulse)

     lie=0x7fff; // column selection flag initialization

     while(1)

    //Repeat loop display

     {

        for(j=0;j<10;j++) //j is used to control the time that one frame of content stays on the screen, that is, to control the scrolling speed

         {

            for(i=1;i<=31;i+=2)

            {

                P0=0xff; //Turn off the display first to avoid adverse effects on the screen during the data movement in 164. You can remove these two sentences to compare the display effect.

                P2=0xff;

                SBUF=text[i+m]; //Send font data from the serial port (Why should the latter data be sent first? You will understand after looking at the circuit :)

                while(TI==0); //Wait for sending to complete

                TI=0;

                SBUF=text[i+m-1]; //Send data from the serial port to complete a column of data

                while(TI==0);

                TI=0;

                P0=lie%256; //Select the column to be displayed, which is equivalent to turning on the display of that column

                P2=lie/256;

                delay(); //Delay, wait for a while, so that the content displayed in this column can produce the "visual persistence" phenomenon in the human eye. People who know a little about physiology should know this.

                lie=_iror_(lie,1); //Shift the column selection flag to select the next column

            }

        } //Return to display the next column until all 16 columns are displayed

        m+=2; //Move the display content back one column

        if(m>1024) //This data is the size of your font array - 32, mine is 1056-32=1024

        m=0;

    }

}

/*Delay subroutine*/

void delay()

{

    uint n;

    for(n=0;n<90;n++)

    {;}

}