2021-04-27 51单片机接通电源0~2秒内LED点阵显示状态为全亮...

缘由接通电源0~2秒内 LED点阵显示状态为 全亮2~3秒 显示【P】3~4秒 显示【I】4~5-其他-CSDN问答

#include//头文件
 
unsigned char code shuju[][8]={{0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff},{0x00,0x00,0x7F,0x48,0x48,0x30,0x00,0x00},
{0x00,0x82,0x82,0xFE,0x82,0x82,0x00,0x00},{0x00,0x00,0x32,0x49,0x49,0x49,0x3e,0x00},
{0x18,0x24,0x12,0x12,0x12,0x24,0x18,0x00}, {0x00,0x7C,0x02,0x02,0x02,0x7C,0x00,0x00}};//数据
unsigned char code sjwei[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe};//位
unsigned char Js=0;//中断计时
unsigned char Mo=0;//秒
bit k=0;
void ZhongDuanSheZhi()
{
	TH0+=0X4c;/*定时器赋初值，定时50ms触发中断，自动补偿方式*/
	TL0+=0X00; 
	TMOD=0X01;
	TR0=ET0=EA=1; //开启定时器开启全局中断开关
}
void JiShi(/*时间计算*/)
{
		if(Js>=20)
		{
			Js=0;
			if(Mo>=2)k=1;
			if(++Mo>7)Mo=0;
		}			
}
void main()
{
	unsigned char b=0, j=0, xd=0;
	ZhongDuanSheZhi();
	while(1)
	{
		P2=shuju[j][b];
		P3=sjwei[b];
		while(++xd)JiShi();//显示延时
		P3=255;//换位消隐
		if(++b>7)b=0;
		if(k){k=0;if(++j>=6)j=0;}
	}
}
void ZhongDuan() interrupt 1
{
	++Js;
	TH0+=0X4c;
	TL0+=0X00;        
}