/*
*功能：用定时器0实现定时200毫秒流水灯,
* 同时用定时器1实现动态显示654321，
* 且蜂鸣器发声；
*日期：2014-03-24
*作者：徐冉
*注意事项：若打开两个定时器时，必须使用两个定时器，
* 否则两个定时器都不工作！！！
**/
/**********AT89C52-RC 51hei单片机实验板**************/
/*************51hei-开发板*********************/
#include
typedef unsigned int uint;
typedef unsigned char uchar;
sbit wela = P2^7; //数码管位声明
sbit dula = P2^6; //数码管段选声明
sbit FM = P2^3;//蜂鸣器声明
uchar counter = 0, counter1 = 0, j = 0, flag = 0, flag1 = 0;
uchar num = 6, num1 = 0;
//数码管段选编码
uchar code table_du [] = {
0x3F, //"0"
0x06, //"1"
0x5B, //"2"
0x4F, //"3"
0x66, //"4"
0x6D, //"5"
0x7D, //"6"
0x07, //"7"
0x7F, //"8"
0x6F, //"9"
0x77, //"A"
0x7C, //"B"
0x39, //"C"
0x5E, //"D"
0x79, //"E"
0x71, //"F"
0x76, //"H"
0x38, //"L"
0x37, //"n"
0x3E, //"u"
0x73, //"P"
0x5C, //"o"
0x40, //"-"
0x00, //熄灭
0x00 //自定义
};
//数码管位选编码
uchar code table_we[] = {
0xfe,
0xfd,
0xfb,
0xf7,
0xef,
0xdf
};
void init();
void display();
void main()
{

init();
while(1)
{
if(counter1 == 30)
{
counter1 = 0;
display();
num--;
num1++;
if(num == 0)
{
num = 6;
}
if(num1 == 6)
{
num1 = 0;
}
}

if(counter == 200)//定时到4秒后，流水灯向右流动
{
counter = 0;//counter清零，
//关闭定时器0
TR0 = 0;
//ET0 = 0;
flag = 1; //标志变量置1后，定时器重新初始化
TH0 = 0xB8; //定时器0定时20毫秒
TL0 = 0x00;
TR0 = 1; //重新打开定时器0
//ET0 = 1;
j = 0;
}
}
}