BYTE   code KEY_MAP[] =
{
KEY_N7,           KEY_N6,        KEY_N5,          KEY_N4,            //0-3
KEY_N3,           KEY_N2,        KEY_N1,          KEY_N0,            //4-7
KEY_N0,           KEY_N9,        KEY_MODE,        KEY_SET,           //8-11
KEY_CHANGE,       KEY_SW_ALARM,  KEY_EN_ALARM,    KEY_ALARM_STOP     //12-15
/*
KEY_N8,           KEY_N7,        KEY_N6,          KEY_N5,            //0-3
KEY_N4,           KEY_N3,        KEY_N2,          KEY_N1,            //4-7
KEY_NEXT,         KEY_PLAY,      KEY_PREV,        KEY_TVMODE,        //8-11
KEY_STOP,         KEY_OPEN_CLOSE,KEY_N0,          KEY_N9,            //12-15
KEY_PREV,         KEY_N10PLUS,   KEY_N7,          KEY_N5,            //16-19
KEY_N1,           KEY_N0,        KEY_N8,          KEY_N4,            //20-23
KEY_N9,           KEY_KEYUP,     KEY_KEYNORMAL,   KEY_KEYDOWN,       //24_27
*/
};
/*
1           2           3           4           5

6           7           8           9           10+

mode       set      change    sw_alarm_bit  enable_alarm  alarm_stop

mode        :     display time,date
                  date will show 10s then return to show time
                  in time you can type KEY_SET or KEY_CHANGE

set         :     if disp time  set (hour,minute,second)
                  if disp date  set (year,month,day)
                  if disp alarm set (bg_hour,bg_minute,ed_hour,edminute)
                  which set value will flash for 10s then return to show time
                  in time you can type KEY_CHANGE or other key

change      :     set value of each flash bit

sw_alarm_bit:     if disp alarm* switch alarm* on or off

enable_alarm:     alarm all on or off

alarm_stop  :     stop alarm

1~10+       :     when type 1~10+ alarm will show on vfd for 10s
                  in time you can type KEY_SET or other key
each key type it will be count 10s
*/