main.c

这是一个段式lcd显示

/***************************************************************
       ML610Q431 sample C source file       
       CODE/DATA MODEL : SMALL/NEAR
       ROMWINDOW  : 0-0DFFFh
       Version    : V1.0
       File name  : main.c
       Author     : MF.Chen
       Copyright (C) 2008/11/20 Globaltec Co.,Ltd.
***************************************************************/
/**********************************************************************************
User Includes
***********************************************************************************/
#include "m610411.h"
#include "common.h"
#include "lcd.h"

void sfr_init(void);
void clock_check(void);
void common_clrWDT( void );
/***********************************************************************************/
/*     MAIN LOOP			*/																													
/***********************************************************************************/
void main(void)
{
	__DI();              		    	/* Interrupt Disable */
	sfr_init() ;                  /* Initialize SFR */ 
	lcd_init();                   /* Initialize A&B */ 		         
	__EI();             			  	/* Interrupt Enable */	
	  					
	while (1)									  	// Loop     
	{		   		   		    	   	  	  		 		 		  
		clock_check();              // 
	  common_clrWDT();            //clear watchdog	
  }
}
/**************************************************************************
	                         program initialize
***************************************************************************/
void  sfr_init(void)

{           
  /*=== I/O port init. ===*/
  /*----P2-------*/
  P2CON0=0xff;                  //output mode select 	                    
	P2CON1=0xff;                  //CMOS output mode
	
	/***********按键**************/
	//*
	 P0CON0=0x03;                            
   P0CON1=0x00;                  //pull up input mode
	//*/
		 
	/*=== Select start/stop mode. ===*/ 
  E2H=1;                        //enable T2Hz interrupt
  
  cont_1second=0;
  cont_1min=58;
  cont_1hour=22;
}

/*****************************************************************************
	          	             Clear Watchdog Timer
******************************************************************************/
void common_clrWDT( void )
{
	if ( WDP == 1 )
	{
		WDTCON = (unsigned char)0xA5u;	  /* WDP : 1 -> 0 */
	}
  	WDTCON = (unsigned char)0x5A;		  /* WDP : 0 -> 1 */
  	WDTCON = (unsigned char)0xA5;		  /* WDP : 1 -> 0 */ 	
}  	
/*****************************************************************************
	          	                Clock check
******************************************************************************/
void clock_check(void)
{
	if (f_1s==1)
	   { 
	   	 f_1s=0;
	   	 
	   	 key_scan();
	   	 
	   	 if(cont_1second<59)
	   	   {
	   	    cont_1second++;	//秒计时
	   	  	     
	   	   }
	     else if(cont_1min<59) 
	     	  {	   
	     	  	cont_1second=0;
	     	  	  cont_1min++;   //分计时
	     	   }
	     	   else if(cont_1hour<23)
	     	   	 {
	     	   	 	cont_1second=0;
	     	   	 	cont_1min=0;
	     	   	 	cont_1hour++;
	     	   	 	}
	     	   	 else	
	     	   	 	{
	     	   	 		cont_1hour=0;
	     	   	 		cont_1min =0;
	     	   	 		cont_1second=0;
	     	   	 	} 

	     disp_data_sec=cont_1second;
	     disp_data_min=cont_1min;
	     disp_data_hour= cont_1hour;
	     
	     lcd_display();            //call lcd display
	   }   
}

void key_scan(viod)
 {
 	if(key0==0)  //while(key0);
 		 if(cont_1hour<24) cont_1hour++;
 		 	else cont_1hour=0;
 		else if(key1==0) 
 		   cont_1min++;
 	}