基于51单片机的点阵【4汉字】（仿真）

简易点阵显示器：

1、使用51单片机。

2、用4个16×16点阵实现汉字显示：毕业快乐。

3、具有静态和滚动显示功能。

uchar next=0;//滚动控制
uchar time=0;
uchar start=0;//移位控制
uchar code str[] = {//编码
0x00,0x00,0xFF,0x88,0x88,0x48,0x48,0x00,0x7F,0x88,0x84,0x84,0x82,0xE0,0x00,0x00,
0x00,0x10,0x60,0x80,0x00,0xFF,0x00,0x00,0x00,0xFF,0x00,0x00,0xC0,0x30,0x00,0x00,
0x00,0xE0,0x00,0xFF,0x10,0x20,0x08,0x08,0x08,0xFF,0x08,0x08,0xF8,0x00,0x00,0x00,
0x00,0x00,0xE0,0x9C,0x84,0x84,0x84,0xF4,0x82,0x82,0x83,0x82,0x80,0x80,0x00,0x00,
0x04,0x04,0x05,0x04,0x04,0x04,0x04,0xFF,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00,/*"毕",0*/
0x40,0x40,0x40,0x43,0x40,0x7F,0x40,0x40,0x40,0x7F,0x42,0x41,0x40,0x40,0x40,0x00,/*"业",1*/
0x01,0x00,0x00,0xFF,0x00,0x81,0x41,0x31,0x0D,0x03,0x0D,0x31,0x41,0x81,0x81,0x00,/*"快",2*/
0x00,0x20,0x10,0x08,0x06,0x40,0x80,0x7F,0x00,0x00,0x02,0x04,0x08,0x30,0x00,0x00};/*"乐",3*/
void delay(uint xms)//延时函数
{
	while(xms--);
}
void keyscan()//按键控制程序
{
	if(!k1)//静态
	{
		start=0;
		next=0;
	}
	if(!k2)//动态
		start=1;
}
void display()//显示
{
	uchar i;
	for(i=0;i<64;i++)
	{
		P1=0xff;
		keyscan();//按键检测
		P3=~str[(next+i)%64+64];
		P2=~str[(next+i)%64];
		P1=i;
		delay(50);
	}
}

//主程序
void main()
{
	TMOD=0X01; //配置 16 位定时器/计数器
	TH0=0x3c;//重新赋值计时初值 50ms
	TL0=0xb0;
	EA=1; //打开全局中断
	ET0=1; //打开定时/计数 0 中断
	TR0=1;
		
	while(1) //主程序循环程序
	{		
		display();
								
	}
}
//定时器 1 中断服务程序
void timer0() interrupt 1 using 1
{
	if(time<3)//定时

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