《单片机实践项目》《电子DIY》之基于单片机的1616点阵显示（三十四），Proteus仿真

程序：

#include <reg52.h>
//视频教程：B站搜索：“逗比小憨憨”
#define uchar unsigned char
#define uint  unsigned int
#define ulong unsigned long
#define T0_Value  50000
#define SEL_CHIP  P1
#define IN_CHIP   P2
#define LINE_OUT  P0

uchar count=0;
uchar *pointer=&count;
uint  offset=0;

uchar code dis[4][32]={
    
    
{
    
    0x04,0x28,0x08,0x24,0x32,0x22,0xC2,0x21,0xC2,0x26,0x34,0x38,0x04,0x04,0x08,0x18,0x30,0xF0,0xC0,0x17,0x60,0x10,0x18,0x10,0x0C,0x14,0x06,0x18,0x04,0x10,0x00,0x00},/*"欢",0*/
{
    
    0x02,0x02,0x04,0x82,0xF8,0x73,0x04,0x20,0x02,0x00,0xE2,0x3F,0x42,0x20,0x82,0x40,0x02,0x40,0xFA,0x3F,0x02,0x20,0x42,0x20,0x22,0x20,0xC2,0x3F,0x02,0x00,0x00,0x00},/*"迎",1*/
{
    
    0x00,0x01,0x04,0x02,0x1C,0x0C,0xC0,0x3F,0x1C,0xC0,0x02,0x09,0x02,0x16,0x92,0x60,0x4A,0x20,0x82,0x2F,0x02,0x20,0x0E,0x24,0x00,0x22,0x90,0x31,0x0C,0x20,0x00,0x00},/*"您",2*/
{
    
    0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}};

void delay_ms(uint ms);
void Init(void);
void scan(void);


int main(void)
{
    
    
    pointer=&dis[0][0];
	Init();

    while (1)
    {
    
    
     	scan();  
    }
}


void delay_ms(uint value)
{
    
    
    uint i,j;
    for(i=0;i<value;i++)
        for(j=0;j<118;j++);
}


void Timer0_Handler(void) interrupt 1 using 3
{
    
    
    TH0=(65536-T0_Value)/256;
    TL0=(65536-T0_Value)%256;

    if (count<20)
    {
    
    
    	count++;
    }
    else
    {
    
    
    	offset+=2;
    	if (offset>128)
            offset=0;
        count=0;
    }
}

void Init(void)
{
    
    
	TH0=(65536-T0_Value)/256;
    TL0=(65536-T0_Value)%256;
	TMOD|=0X01;
	ET0=1;
	EA=1;
	count=0;
	TR0=1;
}

void scan(void)
{
    
    
	uchar i=0;  
	for (i=0;i<8;i++)    //显示左半边屏幕
    {
    
    
		LINE_OUT=*(pointer+offset+2*i);
		IN_CHIP=i;
		SEL_CHIP=0x10;    //0000 0000 | 0001 0000
		delay_ms(1);
		
		LINE_OUT=*(pointer+offset+2*i+1); 
		IN_CHIP=i;
		SEL_CHIP=0x20;    //0000 0000 | 0002 0000
		delay_ms(1);
    }
    for (i=8;i<16;i++)     //显示右半边屏幕
    {
    
    
		LINE_OUT=*(pointer+offset+2*i);
		IN_CHIP=i;
		SEL_CHIP=0x40;    //0000 0000 | 0100 0000
		delay_ms(1);
		
		LINE_OUT=*(pointer+offset+2*i+1);
		IN_CHIP=i;
		SEL_CHIP=0x80;    //0000 0000 | 1000 0000
		delay_ms(1);
    }	
}