单片机滚动显示电话号码 C语言程序

ID:438865 · 发表于 2018-12-3 23:42

//程序：ex30.c
//功能：在8×8LED点阵上从下向上滚动显示出手机号码 "13592346786"
#include <REGX51.H> //包含头文件REGX51.H，定义了51单片机的所有SFR
//函数名：delayms
//函数功能：实现软件延时
//形式参数：无符号整型变量i，控制时间为i*1ms
//返回值：无
void delayms(unsigned int i)
{unsigned char k;
while(i--)
for(k=0;k<120;k++);    //120次空操作
}
void main()
{
unsigned char code led[]={0xff,0xe7,0xc7,0xe7,0xe7,0xe7,0xe7,0xe7,    //1
                              0xff,0x87,0xf3,0xf3,0xc7,0xf3,0xf3,0x87,    //3
         0xff,0x87,0xbf,0x87,0xf3,0xf3,0xf3,0x87,    //5
         0xff,0xc7,0x93,0x93,0x93,0xc3,0xf3,0xc7,    //9
         0xff,0x87,0xf3,0xf3,0xc7,0x9f,0x9f,0x83,    //2
                              0xff,0x87,0xf3,0xf3,0xc7,0xf3,0xf3,0x87,    //3
                              0xff,0xf3,0xe3,0xd3,0xb3,0x83,0xf3,0xf3,    //4
                              0xff,0xc7,0x9f,0x87,0x93,0x93,0x93,0xc7,    //6
                              0xff,0x03,0xf3,0xe7,0xe7,0xcf,0xcf,0xcf,    //7
                              0xff,0xc7,0x93,0x93,0xc7,0x93,0x93,0xc7,    //8
         0xff,0xc7,0x9f,0x87,0x93,0x93,0x93,0xc7}; //6
unsigned char w;
unsigned int i,j,k,m;
while(1)
  {
   for(k=0;k<88;k++)    //显示滚动行数控制变量
   {
   for(m=0;m<100;m++) //每个字符扫描显示100次，控制每个字符显示时间
         {
   w=0x01;
         j=k;
         for(i=0;i<8;i++)
            {
            P1=w;                         //行数据送P1口
            P0=led[j];                   //列数据送P0口
            delayms(1);
   P0=0xff;                      //关显示
            w<<=1;                         //行变量左移指向下一行
   j++;                         //指向数组中下一个显示码
            if(j>87)j=j-88;                //如果列数据显示完回到初始
   }
         }
   }
}
}

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