凌阳61单片机使用7段数码管显示数字时钟的程序

//有>//有>5次扫描的值相等，说明不是抖动，判断按键值

{ if(current_key == 0x0001) key_code = 1;

if(current_key == 0x0002) key_code = 2;

if(current_key == 0x0004) key_code = 3;

}

}else{

// 抖动

old_key = 0;

key_count = 0;

key_status = NOKEY;

}

}

}else{ //无按键

old_key = 0;

key_count = 0;

if( key_status == PRESSING ) key_status = PRESSED; //按键释放了

}

*P_INT_Clear = C_IRQ6_TMB2;

}

}