AT89C51单片机LED16x16点阵显示屏程序及仿真

会员952544

    这是一款AT89C51单片机LED16x16点阵显示屏程序，使用AT89C51单片机，16*16点阵屏驱动使用了两片74HC154集成电路，整个电路非常简洁，使用的元件比较少，方便布线。压缩文件中附上了16*16点阵字模取模软件及使用示例图片，同时给出了仿真文件，方便使用学习。

                               
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单片机源程序：

• #include <reg51.h>
• #define u8 unsigned char
• #define u16 unsigned int
• sbit a=P2^4;   //154芯片使能
• sbit b=P2^5;
• u8 code led[][32]={
• {0x02,0x02,0xFA,0x4A,0x4A,0x4A,0x4A,0xFE,0x4A,0x4A,0x4A,0x4A,0xFE,0x0B,0x02,0x00,
• 0x80,0x80,0x87,0x42,0x46,0x2A,0x12,0x2F,0x22,0x42,0x42,0x42,0x87,0x80,0x80,0x00,},// 更
• {0x00,0x00,0x20,0x10,0x98,0xA4,0x47,0x24,0xE4,0x14,0x0C,0x04,0x00,0x00,0x00,0x00,
• 0x00,0x81,0x91,0x89,0x44,0x44,0x4A,0x31,0x11,0x11,0x09,0x05,0x03,0x01,0x00,0x00,},// 多
• {0x00,0x00,0xF8,0x49,0x4A,0x4C,0x48,0xF8,0x48,0x4C,0x4A,0x49,0xFC,0x08,0x00,0x00,
• 0x10,0x10,0x17,0x12,0x12,0x12,0x12,0xFF,0x12,0x12,0x12,0x12,0x13,0x18,0x10,0x00,},//单
• {0x00,0x00,0xFE,0x20,0x20,0x20,0x20,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x20,0x00,
• 0x80,0x40,0x3F,0x01,0x01,0x01,0x01,0x01,0x01,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,},//片
• {0x10,0x10,0xD0,0xFF,0x90,0x10,0x00,0xFC,0x04,0x04,0x04,0xFE,0x04,0x00,0x00,0x00,
• 0x04,0x03,0x00,0xFF,0x80,0x41,0x20,0x1F,0x00,0x00,0x00,0x3F,0x40,0x40,0x70,0x00,},//机
• {0x24,0x24,0xA4,0xFE,0xA3,0x22,0x20,0x7E,0x42,0x42,0x42,0x42,0x42,0x7F,0x02,0x00,
• 0x08,0x06,0x01,0xFF,0x00,0x43,0x41,0x49,0x49,0x49,0x7F,0x49,0x4D,0x69,0x41,0x00,},//程
• {0x00,0x00,0xFC,0x04,0x14,0x14,0x14,0x55,0x96,0x54,0x34,0x14,0x16,0x04,0x00,0x00,
• 0x40,0x30,0x0F,0x00,0x01,0x01,0x41,0x81,0x7F,0x01,0x01,0x05,0x03,0x01,0x00,0x00,},//序
• {0x80,0x40,0x20,0xF8,0x07,0x10,0x10,0x10,0xF1,0x96,0x90,0x90,0xD0,0x98,0x10,0x00,
• 0x00,0x00,0x00,0xFF,0x00,0x80,0x40,0x30,0x0F,0x40,0x80,0x40,0x3F,0x00,0x00,0x00,},//仿
• {0x00,0x04,0x04,0xF4,0x54,0x54,0x54,0x5F,0x54,0x54,0x54,0xFC,0x16,0x04,0x00,0x00,
• 0x10,0x10,0x90,0x5F,0x35,0x15,0x15,0x15,0x15,0x15,0x35,0x5F,0xD0,0x18,0x10,0x00,},//真
• {0x20,0x22,0xEC,0x00,0x20,0x22,0xAA,0xAA,0xAA,0xBF,0xAA,0xAA,0xEB,0xA2,0x20,0x00,
• 0x00,0x00,0x7F,0x20,0x10,0x00,0xFF,0x0A,0x0A,0x0A,0x4A,0x8A,0x7F,0x00,0x00,0x00,},//请
• {0x00,0x62,0x52,0x4A,0xC6,0x42,0x52,0x63,0xC2,0x00,0xF8,0x00,0x00,0xFF,0x00,0x00,
• 0x40,0x42,0x42,0x42,0x7F,0x22,0x23,0x22,0x20,0x00,0x0F,0x40,0x80,0x7F,0x00,0x00,},//到
• {0x00,0xF8,0x48,0x48,0x48,0x48,0xFF,0x48,0x48,0x48,0x48,0xFC,0x08,0x00,0x00,0x00,
• 0x00,0x07,0x02,0x02,0x02,0x02,0x3F,0x42,0x42,0x42,0x42,0x47,0x40,0x70,0x00,0x00,},//电
• {0x80,0x80,0x82,0x82,0x82,0x82,0x82,0xE2,0xA2,0x92,0x8A,0x86,0x80,0xC0,0x80,0x00,
• 0x00,0x00,0x00,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,},//子
• {0x00,0x80,0xC0,0xBC,0x84,0x84,0x84,0xF4,0x82,0x82,0x83,0x82,0x80,0xC0,0x80,0x00,
• 0x00,0x40,0x20,0x10,0x0C,0x40,0x80,0x7F,0x00,0x00,0x04,0x08,0x30,0x60,0x00,0x00,},//乐
• {0x00,0x00,0xFE,0x0A,0x2A,0x2A,0xAA,0x6A,0x2A,0x2A,0xAA,0x2A,0x2F,0x22,0x00,0x00,
• 0x40,0x30,0x4F,0x48,0x48,0x49,0x49,0x49,0x7F,0x49,0x49,0x49,0x4C,0x68,0x40,0x00,},//屋
• };
• void delay(u16 ms)
• {
•          u8 s=0;
•     while(--ms)
•                 {
•                    for(s=0;s<88;s++);
•                 }
• }
• u8 K=0;
• void LedScan(u8 x)
• {
•     static u8 i = 0;
•     for(i=0;i<16;i++)            //上半屏显示
•    {a=0;
•     b=1;
•      P2 = (P2 & 0xf0) | i;
•                    P0=led[x];
•                  delay(2);
•    }
•     for(i=0;i<16;i++)            //下半屏显示
•    {
•                  a=1;
•      b=0;
•      P2 = (P2 & 0xf0) | i;
•                    P0=led[x][i+16];
•                  delay(2);
•    }
• }
• void main()
• {
•           a=1;
•           b=1;
•         TMOD = 0x01;
•     TH0 = 0x0D8;
•     TL0 = 0x0F0;
•     EA = 1;
•     ET0 = 1;
•     TR0 = 1;
•     while(1)
•                 {
•                         LedScan(K);
•                 }
• }
• void Timer0Interrupt(void) interrupt 1
• {
•          static u16 dd=0;
•     TH0 = 0x0D8;
•     TL0 = 0x0F0;
•     dd++;
•         if(dd==50)
•         { dd=0;
•           K++;
•                 if(K==15)//显示的字数个数
•                 {K=0;}
•         }
• }