power.c

一个具体的项目程序

#include  "my_head.h"
/*******************************************/
#define   POWER_CK1   P2_3
#define   POWER_CK2   P2_4

#define   CELL_CHARGE_STATUS     0x00
#define   EXTERN_POWER_STATUS    0x01
#define   CELL_ALARM_STATUS      0x02
#define   CELL_POWRER_STATUS      0x03

static  BYTE  idata  save_power_status=0xFF;
void  Check_Power_Event(void)
{
   BYTE  power=0;

   power |= POWER_CK1;
   power<<=1;
   power |= POWER_CK2;
   if(save_power_status==power)return;
   save_power_status=power;
   switch(power)
   {
    case  CELL_CHARGE_STATUS:
	      Equip_CurStatus=CELL_CHARGE_CODE;
		  break;
	case  EXTERN_POWER_STATUS:
		  Dis_Cellpower_Led(FALSE);  //0-close;1--open.
		  do_buzzer(BUZZER_SUCCESS);
		  Equip_CurStatus=EXTERN_POWER_CODE;
		  break;
    case  CELL_ALARM_STATUS:
          Save_My_All_Data();  //must!!!!!
          Equip_CurStatus=CELL_ALARM_CODE;
  	      Dis_Err(Equip_CurStatus);
		  //PostMessage(CELL_ALARM_Event);//for uart...
		  //SetCurState(ALARM_STATUS);
		  while(TRUE)
		  {
		   do_buzzer(BUZZER_BUSY);
		   delay_ms(1000);
           power  = 0;
		   power |= POWER_CK1;
		   power<<= 1;
		   power |= POWER_CK2;
		   if(power != CELL_ALARM_STATUS)break;
		  }
		  break;
	case  CELL_POWRER_STATUS:
	      Equip_CurStatus=CELL_POWRER_CODE;
		  Dis_Cellpower_Led(TRUE);  //0-close;1--open.
		  break;
	default: break;
   }
  Dis_Err(Equip_CurStatus);
  Stop_Timer(DISPLAY_DELAYEVENT_Tevent);//msut!!
  Set_TimerEvent(DISPLAY_DELAYEVENT_Tevent,DISPLAY_DELAYEVENT_TIME);
  //Do_DisLed_Flash(0x00,0x00,200);
  //Set_TimerEvent(WAIT_CARD_Tevent,WAIT_CARDCONSUME_TIME);//(1)
  //SetCurState(IDEL_STATUS);//ActiveState(INIT_STATUS);
  do_buzzer(BUZZER_SUCCESS);
}