点阵滚动显示“我等你”的首字母
Posted 荆紫藤
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//"IWY"(左移)
#include<reg52.h>
/**绑定IO地址
*/
sbit ADDR0 = P1^0;
sbit ADDR1 = P1^1;
sbit ADDR2 = P1^2;
sbit ADDR3 = P1^3;
sbit ENLED = P1^4;
//字符数组声明
unsigned char code LedChar[34][8]={ //存放所有的帧
{0xFF,0x7F,0xFF,0xFF,0xFF,0xFF,0xFF,0x7F},
{0xFF,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F},
{0xFF,0x3F,0xFF,0xFF,0xFF,0xFF,0xFF,0x3F},
{0xFF,0x0F,0x3F,0x3F,0x3F,0x3F,0x3F,0x0F},
{0xFF,0x07,0x9F,0x9F,0x9F,0x9F,0x9F,0x07},
{0xFF,0x03,0xCF,0xCF,0xCF,0xCF,0xCF,0x03},
{0xFF,0x81,0xE7,0xE7,0xE7,0xE7,0xE7,0x81},
{0xFF,0x40,0xF3,0xF3,0xF3,0xF3,0xF3,0xC0},
{0xFF,0xA0,0x79,0x79,0x79,0x79,0xF9,0xE0},
{0xFF,0xD0,0xBC,0xBC,0xBC,0xBC,0x7C,0xF0},
{0xFF,0xE8,0xDE,0xDE,0xDE,0xDE,0xBE,0x78},
{0xFF,0xF4,0xEF,0xEF,0xEF,0xEF,0x5F,0xBC},
{0xFF,0xFA,0x77,0x77,0x77,0x77,0xAF,0xDE},
{0xFF,0x7D,0xBB,0xBB,0xBB,0xBB,0xD7,0xEF},
{0xFF,0xBE,0x5D,0x5D,0x5D,0x5D,0xEB,0xF7},
{0xFF,0xDF,0xAE,0xAE,0xAE,0xAE,0x75,0xFB},
{0xFF,0xEF,0xD7,0xD7,0xD7,0xD7,0xBA,0x7D},
{0xFF,0xF7,0xEB,0xEB,0xEB,0xEB,0x5D,0xBE},
{0xFF,0xFB,0x75,0x75,0x75,0x75,0xAE,0xDF},
{0xFF,0x7D,0xBA,0xBA,0xBA,0xBA,0xD7,0xEF},
{0xFF,0x7D,0xBA,0xBA,0xBA,0xBA,0xD7,0xEF},
{0xFF,0x5F,0x6E,0xEE,0xEE,0xEE,0xF5,0xFB},
{0xFF,0xAF,0xB7,0x77,0xF7,0xF7,0xFA,0xFD},
{0xFF,0xD7,0xDB,0xBB,0x7B,0x7B,0x7D,0x7E},
{0xFF,0xEB,0xED,0x5D,0xBD,0xBD,0xBE,0xBF},
{0xFF,0x75,0x76,0xAE,0xDE,0xDE,0xDF,0xDF},
{0xFF,0xBA,0xBB,0xD7,0xEF,0xEF,0xEF,0xEF},
{0xFF,0xDD,0xDD,0xEB,0xF7,0xF7,0xF7,0xF7},
{0xFF,0xEE,0xEE,0xF5,0xFB,0xFB,0xFB,0xFB},
{0xFF,0xF7,0xF7,0xFA,0xFD,0xFD,0xFD,0xFD},
{0xFF,0xFB,0xFB,0xFD,0xFE,0xFE,0xFE,0xFE},
{0xFF,0xFD,0xFD,0xFE,0xFF,0xFF,0xFF,0xFF},
{0xFF,0xFE,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF},
{0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF}
};
/** 主函数
*/
void main(){
EA=1; //使能总中断
ENLED = 0; //使能IO口
ADDR3 = 0;
TMOD=0x01; //使能定时器为模式1
TH0=0xFC; //赋初始值
TL0=0x67;
ET0=1; //使能中断
TR0=1; //使能定时器
while(1);
}
/**中断服务
*/
void InterRupt()interrupt 1{
//静态变量声明
static unsigned char i = 0;
static unsigned char num = 0;
static unsigned int tmr = 0;
TH0=0xFC;//重新赋值
TL0=0x67;
P0=0xFF; //清屏 (防止鬼影)
switch(i){
//每次中断刷新点阵的显示
case 0: ADDR2 = 0; ADDR1 = 0; ADDR0 = 0; i++; P0=LedChar[num][0]; break;
case 1: ADDR2 = 0; ADDR1 = 0; ADDR0 = 1; i++; P0=LedChar[num][1]; break;
case 2: ADDR2 = 0; ADDR1 = 1; ADDR0 = 0; i++; P0=LedChar[num][2]; break;
case 3: ADDR2 = 0; ADDR1 = 1; ADDR0 = 1; i++; P0=LedChar[num][3]; break;
case 4: ADDR2 = 1; ADDR1 = 0; ADDR0 = 0; i++; P0=LedChar[num][4]; break;
case 5: ADDR2 = 1; ADDR1 = 0; ADDR0 = 1; i++; P0=LedChar[num][5]; break;
case 6: ADDR2 = 1; ADDR1 = 1; ADDR0 = 0; i++; P0=LedChar[num][6]; break;
case 7: ADDR2 = 1; ADDR1 = 1; ADDR0 = 1; i=0; P0=LedChar[num][7]; break;
default: break;
}
//实现换片(250ms)
tmr++;
if(tmr>=250){
tmr=0;
num++;
if(num>=34){
num=0;
}
}
}
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