//按K1按键进入设定状态

//按K2,依次进入闹钟功能是否启用，闹钟时,分秒,年,月,日及时间时,分,秒的设置,直到退出设置状态

//按K3,调整是否起用闹钟和调节闹钟时,分,秒,年,月,日,时间的时,分,秒的数字

//LCD第二排中间显示小喇叭，表示启用闹钟功能，无则禁止闹钟功能（可在调整状态进行设置）

//正常状态,LCD上排最前面显示自定义字符,LCD下排最前面闪动"RICHMCU"

//设置状态,LCD上排最前面显示"P",下排最前面在设置闹钟时间时显示"alarm:",其它状态显示"time"

//年代变化2000--2099,星期自动转换-//K1 button to enter the set state// K2, turn into the alarm clock function is enabled, alarm clock, every minute, year, month, day and time, minutes, seconds setting until you exit the setup state// K3 adjustments are hired alarm and adjust the alarm clock, minutes, seconds, year, month, day and time when, minutes, seconds digital// LCD second row middle small speakers, alarm function is enabled, if no alarm function (which can be set in the adjustment state)// normal state on the LCD front row display a custom character LCD flashing " RICHMCU" // set state is the next front row front row " P" , the next row is displayed on the LCD front set the alarm time " alarm:" , other state " time" // change 2000- 2099 years, the week automatically converted