//-----------------------------------------------------------------

//  名称: ULN2803驱动点阵屏仿电梯数字滚动显示

//-----------------------------------------------------------------

//  说明: 本例模拟了电梯显示屏上下滚动显示楼层的效果,当目标楼层大于

//    当前楼层时将向上滚动显示,反之则向下滚动显示.目标楼层到达时

// 点阵保持稳定显示.

//

//-----------------------------------------------------------------

#include <reg51.h> 

#include <intrins.h>

#define INT8   signed   char

#define INT8U  unsigned char

#define INT16U unsigned int

//数字0~9的点阵字节(每个数字8字节)

INT8U code Table_OF_Digits[]=

{  

0x00,0x3C,0x66,0x42,0x42,0x66,0x3C,0x00, //0

0x00,0x08,0x38,0x08,0x08,0x08,0x3E,0x00, //1

0x00,0x3C,0x42,0x04,0x08,0x32,0x7E,0x00, //2

0x00,0x3C,0x42,0x1C,0x02,0x42,0x3C,0x00, //3

0x00,0x0C,0x14,0x24,0x44,0x3C,0x0C,0x00, //4

0x00,0x7E,0x40,0x7C,0x02,0x42,0x3C,0x00, //5

0x00,0x3C,0x40,0x7C,0x42,0x42,0x3C,0x00, //6

0x00,0x7E,0x44,0x08,0x10,0x10,0x10,0x00, //7

0x00,0x3C,0x42,0x24,0x5C,0x42,0x3C,0x00, //8

0x00,0x38,0x46,0x42,0x3E,0x06,0x3C,0x00 //9

};

INT8 offset = 0; //用于产生滚动效果的取点阵字节偏移变量

INT8U Current_Level = 1;//当前楼层号

INT8U Dest_Level = 1; //目标楼层号

INT8U r = 0, x = 0; //点阵显示取字节索引及刷新遍数控制变量

//------------------------------------------------------------------

// 主程序

//------------------------------------------------------------------

void main() 

{  

 

} 

//------------------------------------------------------------------

// T0中断

//------------------------------------------------------------------

void LED_Screen_Display() interrupt 1 

{

}