c51可调10小时倒计时源程序.doc

#include #include unsigned char sec100,sec,sec5,min,hour,flag1,command,temp,opto;unsigned char i,digit,buffer4,onHour1,onMin1,offHour1,offMin1;char cputick,key,delay,count1;char convert10 = 0x3F,0x0c,0x76,0x5e,0x4d,0x5b,0x7b,0x0e,0x7f,0x5f;void pause(int); void scanLED();void manualOnOff();void savetimeOnOff1(); void setmin();void sethour();void showOnce();void savetimeOff1();void time();void timeToBuffer();void blink();void offmsd();void keyexe();void keydelay();void comparetime();void timer0int (void) interrupt 1 using 1 TH0 |= 0xdc; cputick+; time(); void main() /主运行程序/ EA = 1; /打开总中断开关/ ET0 = 1; /打开定时器中断/ TMOD |= 0x01; /定时器方式选择/ TR0 = 1; opto = 0xff; /定时开关置1/ cputick = 0; hour = 10; min = 0; sec = 0; /初始开机时分秒/ key = -1; flag1 = 0; onHour1 = 10; onMin1 = 00; /定时开关开启时间/ offHour1 = 00; offMin1 = 00; /定时开关关闭时间/ count1 = 0; buffer0 = 0x40; buffer1 = 0x40; buffer2 = 0x40; buffer3 = 0x40; while(1) while ( cputick = 100) /这里if构成顺序选择结构 / sec100 = 0; flag1 |= 0x05; temp = 50; sec+; if (sec = 60) sec = 0; /秒产生程序/ flag1 |= 0x02; min-; if (min = -1) min = 59; /分倒计时/ hour-; if (hour = -1) hour = 23; /时倒计时/ void scanLED() int i; digit = 0x08; key = -1; for( i = 0; i =1; void timeToBuffer() buffer0 = convertmin%10; /分个位/ buffer1 = convertmin/10; /分十位/ buffer2 = converthour%10; /时个位/ buffer3 = converthour/10; /时十位/ void blink()if(flag1 & 0x04) != 0) temp-; if (temp != 0) buffer1 |= 0x80; buffer2 |= 0x80; else( flag1 &= 0x04); /if和else构成多分支选择结构 ，当表达式为假时，就跳过分支语句，执行后续程序 / void keyexe() /键盘处理子程序/ if (key != -1) /if如果的意思/ if (flag1 & 0x80) = 0) flag1 |= 0x80; delay = 50; /延时/ switch(key) /开关和跳转语句/ case (0): /开关语句关键字/ manualOnOff(); break; /通常用在循环语句和开关语句中，用来跳出循环程序块/ case (1): savetimeOnOff1(); break; case (2): setmin(); break; case (3): sethour(); void sethour() /小时调整子程序/ hour-; if ( hour= 23) hour = 0; void setmin() /分钟调整子程序/ min-; sec = 0; if( min = 59 ) min = 0; void savetimeOnOff1() count1+; if (count1 = 1) onHour1 = hour; onMin1 = min; buffer0 = 0x00; buffer1 = 0x68; buffer2 = 0x78; buffer3 = 0x71; showOnce(); else count1 = 0; savetimeOff1(); void savetimeOff1() offHour1 = hour; offMin1 = min; buffer0 = 0x63; buffer1 = 0x63; buffer2 = 0x78; buffer3 = 0x71; showOnce(); void manualOnOff() opto= opto | 0x7f; if (opto & 0x80) = 0) buffer0 = 0; buffer1 = 0; buffer2 = 0x68; buffer3 = 0x78; showOnce(); else buffer0 = 0; buffer1 = 0x63; buffer2 = 0x63; buffer3 = 0x78; showOnce(); void showOnce() int i; for(i=0;i2000;i+) scanLED(); void keydelay() if (flag1 & 0x80) !=0) delay-; if(delay = 0) flag1 &= 0x80; void comparetime() if(flag1 & 0x01) != 0 ) flag1 &= 0x01; if(hour = onHour1 & min = onMin1) opto = 0x7f; if(ho