EEPW论坛

{

{0x00,0x7e,0x7e,0x7e,0x7e,0x7e,0x7e,0x00}, //图1

{0x00,0x38,0x44,0x54,0x44,0x38,0x00,0x00}, //图2

{0x00,0x20,0x30,0x38,0x3c,0x3e,0x00,0x00} //图3

};

uchari,j;

//主程序

voidmain()

{

P0=0xff;

P1=0xff;

TMOD=0x01; //T0方式1

TH0=(65536-2000)/256; //2ms定时

TL0=(65536-2000)%256;

IT0=1; //下降沿触发

IE=0x83; //允许定时器0、外部0中断

i=0xff; //i的初值设为0xff，加1后将从0开始

while(1);

//T0中断控制点阵屏显示

voidShow_Dot_Matrix()interrupt1

{

TH0=(65536-2000)/256;//恢复初值

TL0=(65536-2000)%256;

P0=0xff; //输出位码和段码

P0=~M[i][j];

P1=_crol_(P1,1);

j=(j+1)%8;