16×16点阵(滚动显示)

#define int16 unsigned int

#define int32 unsigned long

int8 flag;

int8 n;

int8 code table[][32]={

                        

{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},/*

"  " */

                        

{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*/

                        

{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}/*

"  " */

                      };

void delay(void);

int16 offset;

void main(void)

{

    int8 i;

    int8 *p;

    flag=0x10;

    n=0;

    TMOD=0x01;

    TH0=0xb1;

    TL0=0xe0;

    ET0=1;

    EA=1;

    TR0=1;

    p=&table[0][0];

    while (1)

    {

        for (i=0;i<8;i++)    //显示左半边屏幕

        {

            P0=*(p+offset+2*i);

            P2=i|0x08;    //P2.4=0,P2.3=1 选中U2, 输出扫描码给U6

            delay();

            P0=*(p+offset+2*i+1);

            P2=i|0x10;   //P2.4=1,P2.3=0 选中U3, 输出扫描码给U7

            delay();

        }

        for (i=8;i<16;i++)     //显示右半边屏幕

        {

            P0=*(p+offset+2*i);

            P2=(i-8)|0x20;   //P2.5=1 P2.4=0, P2.3=0 选中U4,输出扫描码U8

            delay();

            P0=*(p+offset+2*i+1);

            P2=(i-8)|0x40;   //P2.6=1 P2.5=0, P2.4=0 选中U5,输出扫描码U9

            delay();

        }

    }

}

void delay(void)

{

    int16 i;

    for (i=0;i<50;i++)

        ;

}

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