📄 原始.txt
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void Timer1ISR(void) interrupt 3 using 2 //定时器2中断，用于按键扫描
{unsigned char keytmp;
char tmp;
TH1=0x15; TL1=0xa0; // 每30ms中断一次
/*** 当前显示的内容 ***/
if(show_status==0) //当前正在设置闹钟项
{ display[0]=cur_alarm_set; display[1]=0xf;
display[2]=alarm[cur_alarm_set].h/10; display[3]=alarm[cur_alarm_set].h%10;
display[4]=alarm[cur_alarm_set].m/10; display[5]=alarm[cur_alarm_set].m%10;
display[6]=(alarm_wk>>cur_alarm_set)&1; display[7]=(alarm_en>>cur_alarm_set)&1;
}
if(show_status==1 || show_status==3) //当前显示或设置日期
{ display[0]=year/10; display[1]=year%10; display[2]=month/10;
display[3]=month%10; display[4]=day/10; display[5]=day%10;
display[6]=0xf; display[7]=weekday;
}
if(show_status==2 || show_status==4) //当前显示或设置时间
{ display[0]=hour/10; display[1]=hour%10; display[2]=min/10;
display[3]=min%10; display[4]=sec/10; display[5]=sec%10;
display[6]=0xf; display[7]=0xf; //最后两后无显示
}
/*** 按键扫描及处理 ***/
keytmp=~(P1) & 0x0f;
if(keytmp==0) { km=0; kp=0; }
else
{ if(km==0) km=1;
else
{ if(kp==0)
{ kp=1;
if(keytmp==1) //第一个按钮
{ if(sound) { alarm_stop=1; sound=0; } //如果闹钟正响，按此键停止
else if((show_status==1 || show_status==2) && led_on) //正显示日期或时间
{ show_status=0; cur_alarm_set=0; attr=0x3f; } //进入闹钟设置
else if(show_status==0) //如正在设置闹钟时间项
{ show_status=2; new_alarm_info=1; attr=0xff; } //返回当前时间显示
return;
}
if(keytmp==2 && led_on) //第二个按钮，仅当数码管打开时有效
{ switch(attr)
{ case 0xff: if(show_status==1) show_status=2; //在显示时间与日期间切换
else if(show_status==2) show_status=1;
break;
case 0x3f: if(show_status==0) cur_alarm_set=(cur_alarm_set+1)%8;
else if(show_status==3)
year=(year+1)%50; //当前日期的“年”加1
else if(show_status==4)
hour=(hour+1)%24; //当前时间的“时”加1
break;
case 0xcf: if(show_status==0) //闹钟设置的“时”加1
alarm[cur_alarm_set].h=(alarm[cur_alarm_set].h+1)%24;
else if(show_status==3)
{ month++; //当前日期的“月”加1
if(month==13) month=1; }
else if(show_status==4)
min=(min+1)%60; //当前时间的“分”加1
break;
case 0xf3: if(show_status==0)
alarm[cur_alarm_set].m=(alarm[cur_alarm_set].m+1)%60;
else if(show_status==3)
{day++; //当前日期的“日”加1
if(day==32) day=1; }
else if(show_status==4)
{count_down=8000;
sec=(sec+1)%60; } //当前时间的“秒”加1
break;
case 0xfd: if(show_status==0)
alarm_wk^=0x1<<cur_alarm_set; //周末标志位切换
break;
case 0xfe: if(show_status==0)
alarm_en^=0x1<<cur_alarm_set; //启用标志位切换
} //end of switch(attr)
return;
} //end of if(keytmp==1)
if(keytmp==4) //第三个按钮
{ switch(attr)
{ case 0xff: if(show_status==1 || show_status==2)
led_on=~led_on; //打开或关闭数码管显示
break;
case 0x3f: if(show_status==0) //如果正在设置闹钟
{ if(cur_alarm_set==0) cur_alarm_set=7;
else cur_alarm_set--;}
else if(show_status==3) //当前日期的“年”减1
{ if(year==0) year=49; else year--; }
else if(show_status==4) //当前时间的“时”减1
{ tmp=hour-1; if(tmp<0) hour=23; else hour=tmp; }
break;
case 0xcf: if(show_status==0) //闹钟设置的“时”减1
{ tmp=alarm[cur_alarm_set].h-1;
if(tmp<0) alarm[cur_alarm_set].h=23;
else alarm[cur_alarm_set].h=tmp;
}
else if(show_status==3)
{ month--; //当前日期的“月”减1
if(month==0) month=12; }
else if(show_status==4)
{ tmp=min-1; //当前时间的“分”减1
if(tmp<0) min=59; else min=tmp; }
break;
case 0xf3: if(show_status==0) //闹钟设置的“分钟”减1
{ tmp=alarm[cur_alarm_set].m-1;
if(tmp<0) alarm[cur_alarm_set].m=59;
else alarm[cur_alarm_set].m=tmp;
}
else if(show_status==3)
{ day--; //当前日期的“日”减1
if(day==0) day=31; }
else if(show_status==4)
{ tmp=sec-1; //当前时间的“秒”减1
count_down=8000;
if(tmp<0) sec=59; else sec=tmp; }
break;
case 0xfd: if(show_status==0) //切换周末标志
alarm_wk^=0x1<<cur_alarm_set;
break;
case 0xfe: if(show_status==0) //切换启用标志
alarm_en^=0x1<<cur_alarm_set;
} //end of switch(attr)
return;
} //end of if(keytmp==2)
if(keytmp==8 & led_on) //第四个按钮，仅当数码管打开时有效
{ switch(attr)
{ case 0xff: if(show_status==1) //如果当前显示日期
show_status=3; //切换到调准日期状态
else if(show_status==2) //如果当前显示时间
show_status=4; //切换到调准时间状态
attr=0x3f; break; //第一、二个数码管闪烁
case 0x3f: attr=0xcf; break; //第三、四个数码管闪烁
case 0xcf: attr=0xf3; break; //第五、六个数码管闪烁
case 0xf3: if(show_status==0) attr=0xfd; //第七个数码管闪烁
else if(show_status==3)
{ show_status=1; attr=0xff; } //恢复正常显示日期
else if(show_status==4)
{ show_status=2; attr=0xff; } //恢复正常显示时间
break;
case 0xfd: if(show_status==0) attr=0xfe; //第八个数码管闪烁
break;
case 0xfe: if(show_status==0) attr=0x3f; //第一、二个数码管闪烁
}
} // end of if(keytmp==4)
} // end of if(kp==0)
} // end of if(km==0)
} // end of if(keytmp!=0)
}
main()
{unsigned char i;
hour=23; min=58; sec=30; year=2; month=4; day=25;
count_down=8000;
flash=0; attr=0xff; led_on=1;
km=0; kp=0; show_status=2; //加电后显示当前时间
new_alarm_info=0; sound=0; alarm_stop=0;
for(i=0;i<8;i++) //从EEPROM中读入8个闹钟设置
{ alarm[i].h=myread(i*2); alarm[i].m=myread(i*2+1); }
alarm_en=myread(i*2); alarm_wk=myread(i*2+1);
IE=0; IP=0; //disable all interrupt and lower priority
TMOD=0x12; //timer 0 is set to mode 2,auto_reloading,timer1,mode 1
TH0=6; TL0=6; //timer0 parameters for 0.125ms
TH1=0x15; TL1=0xa0; //timer1 parameters for 30ms
TR0=1; TR1=1; //timer0 interrupt most important
ET0=1; ET1=1; EA=1; //enable interrupt function
while(1)
{ if(led_on)
for(i=0;i<8;i++)
{ P2=0;
if(flash || attr&(0x80>>i))
{ P0=display[i]; P2=0x80>>i; DelayX1ms(1); }
}
else P2=0;
if(new_alarm_info)
{ P2=0; //暂时关闭数码管
new_alarm_info=0; //写入EEPROM
for(i=0;i<8;i++) { mywrite(i*2,alarm[i].h); mywrite(i*2+1,alarm[i].m); }
mywrite(i*2,alarm_en); mywrite(i*2+1,alarm_wk);
}
}
}
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