51数码管和定时器的总和运用.doc

/*利用动态扫描和定时器1在数码管上显示出从765432开始以1/10秒的速度往下递减直至765398并保持显示此数，与此同时利用定时器0以500MS速度进行流水灯从上至下移动，当数码管上数减到停止时，实验板上流水灯也停止然后全部开始闪烁，3秒后（用T0定时）流水灯全部关闭、数码管上显示出HELLO。到此保持住。设晶振频率为12MHz。*/#include#include#define uint unsigned int#define uchar unsigned char#define ulong unsigned longuchar num,aa,tt,temp,bai,shi,ge,flag,flag1;uint shu;sbit dula=P26;sbit wela=P27;uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x76,0x79,0x38,0x3f,0;void display(uchar aa,uchar bb,uchar cc,uchar bai,uchar shi,uchar ge);void delay(uint z);void main()TMOD=0x11; /设置定时器0和定时器1位十六位定时计数器；TH0=(65536-50000)/256; /定时器0装初值；TL0=(65536-50000)%256; TH1=(65536-50000)/256; /定时器1装初值；TL1=(65536-50000)%256;EA=1; /开总中断；ET0=1; /开定时器0中断；ET1=1; /开定时器1中断；TR0=1; /启动定时器0；TR1=1; /启动定时器1；shu=432;temp=0xfe;P1=temp;/流水灯初值；while(1)if(flag1!=1)display(7,6,5,bai,shi,ge); /显示数字；elsedisplay(16,17,18,18,19,20); /显示HELLO;void timer0() interrupt 1 /定时器0中断函数；TH0=(65536-50000)/256;TL0=(65536-50000)%256;aa+;if(flag!=1)/流水灯还是闪烁灯的选择；if(aa=10)/500ms的延时；aa=0;temp=_crol_(temp,1);/流水灯；P1=temp;elseif(aa%4=0)/闪烁灯；P1=P1;if(aa=60)/闪烁灯的3s延时； TR0=0;/停止闪烁灯；P1=0xff;flag1=1;/设置显示数字还是HELLO的标志位；void timer1() interrupt 3 /定时器1中断函数；TH1=(65536-50000)/256;TL1=(65536-50000)%256;tt+;if(tt=2) /十分之一秒的定时；tt=0;shu-;bai=shu/100%10; /分离要显示的数；shi=shu/10%10;ge=shu%10;if(shu=398) /停止数的动态显示；TR0=0;P1=0xff;TR1=0;flag=1; /设置流水灯还是闪烁灯的标志位；aa=0; /重新开始闪烁灯的计时；TH0=(65536-50000)/256; /初始化T0定时器的值； TL0=(65536-50000)%256;TR0=1; /重新启动定时器0；void display(uchar aa,uchar bb,uchar cc,uchar bai,uchar shi,uchar ge) /显示函数；dula=1;P0=tableaa;dula=0;P0=0xff;wela=1;P0=0xfe;wela=0;delay(5);dula=1;P0=tablebb;dula=0;P0=0xff;wela=1;P0=0xfd;wela=0;delay(5);dula=1;P0=tablecc;dula=0;P0=0xff;wela=1;P0=0xfb;wela=0;delay(5);dula=1;P0=tablebai;dula=0;P0=0xff;wela=1;P0=0xf7;wela=0;delay(5);dula=1;P0=tableshi;dula=0;P0=0xff;wela=1;P0=0xef;wela=0;delay(5);dula=1;P0=tablege;dula=0;P0=