51单片机控制的16乘16的点阵汉字滚动仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）
采用4个74hc138芯片驱动
单片机源程序如下:
- #include <reg52.h>
- #define int8 unsigned char
- #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*/
- {0x00,0x01,0x04,0x02,0x1C,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*/
- {0x44,0x10,0x44,0x14,0x88,0x54,0x88,0x54,0xD0,0x5F,0x30,0x50,0x60,0x50,0xFE,0x7F,0x40,0x50,0x20,0x90,0xB0,0x9F,0x98,0x92,0x8C,0x94,0x88,0x34,0x80,0x11,0x00,0x00},/*"乘",3*/
- {0x82,0x00,0x02,0x01,0x22,0x06,0x22,0x38,0x22,0x04,0x22,0x03,0x22,0x00,0xFE,0xFF,0xA2,0x00,0x22,0x01,0x22,0x02,0x22,0x3C,0x22,0x02,0x02,0x01,0x02,0x00,0x00,0x00},/*"坐",4*/
- …………
- …………限于本文篇幅 余下代码请从51黑下载附件…………
- {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++)
- ;
- }
- void timer0() interrupt 1 using 3
- {
- TF0=0;
- TH0=0xb1;
- TL0=0xe0;
- if (n<10)
- {
- n++;
- }
- else
- {
- offset+=2;
- if (offset>1100)
- offset=0;
- n=0;
- }
- }
所有资料51hei提供下载:
16×16点阵(滚动显示).rar
(71.62 KB, 下载次数: 92)
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