util.c

这是用Ｗ７７Ｅ５８编写的控制ＧＳＭ模块

/* YuanGao electronic designe co.ldt
   (c) Copyright 2002,2003, All Rights Reserved  */

#include <w77e58.h>
#include "global.h"
#include "io.h"
#include "util.h"


//#define UART0_9600_11M
#define UART0_19200_11M

//#define UART0_38400_11M


//uchar   idata   SysTask;
uchar   idata   SysTimer;
uchar   idata   Uart0Timer;
UINT16     idata   GPSTimer30;

uchar   idata _timer0=0;            /* timer0 interrupt counter, use this counter to adjust timeout counters period */
#define TIMEOUT_FACTOR      17                /* timeout factor x 1.0ms (timer0 period) = actual timeout period     */



//P3.2 0003H INT0
void ISR_INT0(void) interrupt 0 //using 1
{
   ;     
}



//Timer0 000BH
void ISR_Timer0(void) interrupt 1 //using 2
{

      //TIMER0: Mode 1每中断一次的时间间隔是:Timer=T x (2^16-TH0TL0),T=(12/11.0592)/4; 0XF760的定时是:0.27126736 X (65536-63328)=0.27126736X2208=599u
      //TIMEOUT_FACTOR=17的定时为:17x599us =10183 us =10(ms)
                 

        TF0 = 0;
        TH0 = 0xF7;                          
        TL0 = 0x60;                 
        TR0 = 1;               
    
        /* count down timeout counters  */
    	if( _timer0 < TIMEOUT_FACTOR )
		_timer0++;
        else
        {
                _timer0 = 0;
                if(SysTimer)   SysTimer--;
                if(Uart0Timer) Uart0Timer--;
                if(GPSTimer30) GPSTimer30--;             


        }

}


//P3.3 Int1 0013H
void ISR_INT1(void) interrupt 2 //using 1
{
       
;

}







/**************************************************************************
*  Timer1 for 1.5ms interrupt                                               
**************************************************************************/
//Timer1 001bH
void ISR_Timer1(void) interrupt 3 //using 1
{
#if 0

        
        TH1 = 0xf7;                 /*  0xf7 */
        TL1 = 0;                    /*  0x0  */
        TR1 = 1;               


        /* count down timeout counters  */
    	if( _timer0 < TIMEOUT_FACTOR )
		_timer0++;
        else
        {
                _timer0 = 0;
                if(SysTimer) SysTimer--;
        }
#endif


}



#if 0
//*****************************************
//串口中断处理
//serial_0  0023H
void serial(void) interrupt 4   //using 2
{   
    if (TI)
    {        
            TI = 0;
           //SBUF='1';
		 #if 1
            if (outbufsign)
            //if (putlast==outlast) outbufsign=0;
            //else
            {
			    SBUF=*outlast; //未发送完继续发送
                outlast++;            //最后传出去的字节位置加一
                if (outlast==outbuf+OLEN) outlast=outbuf;//地址到顶部回到底部
                if (putlast==outlast) outbufsign=0;   //数据发送完置发送缓冲区空标志
             }
             else outbufsign0=0;
         #endif
        
         
	    

    }
    
	if (RI)
    {  
	     #if 0
            RI = 0;
            if(!inbufful)
            {
              *inlast= SBUF;              //放入数据
              inlast++;                   //最后放入的位置加一
              inbufsign=1;
              if (inlast==inbuf+ILEN)     inlast=inbuf; //地址到顶部回到底部
              if (inlast==getlast)        inbufful=1;   //接收缓冲区满置满标志

            }
         #endif 
   }
}

#endif


/**************************************************************************
*  Timer2 for 2ms interrupt                                               
**************************************************************************/
//002BH
void ISR_Timer2(void) interrupt 5 //using 1
{

;

}


#if 0

//SERIAL 1 003BH
void serial_1(void) interrupt 7  //using 2
{    
    
    if(RI_1)
    {
        RI_1 = 0;
    }
    if(TI_1)
    {
       TI_1=0;
       SBUF1=0x34;
     
	 #if 0  
       while(TI_1_1==0) ;
       TI_1=0;
       SBUF1=0x35;
       while(TI_1_1==0) ;
       TI_1=0;
       SBUF1=0x36;
       while(TI_1_1==0) ;
       TI_1=0;
     #endif    
    
	}
} 

#endif


//P1.4
void ISR_Int2(void) interrupt 8 //using 1
{

      //if(SysTask==0)SysTask++;  


}


void ISR_Int3(void) interrupt 9 //using 1
{

;

}


void ISR_Int4(void) interrupt 10 //using 1
{

;

}

void ISR_Int5(void) interrupt 11 //using 1
{

;

}


void ISR_WatchDog(void) interrupt 12 //using 1
{

;

}


#ifdef DEBUG_GPS
#define UART1_9600_11M
#else
#define UART1_4800_11M
#endif
/**************************************************************************
*  Init system                                                            
**************************************************************************/
void CPU_init(void)
{

           EA  = 0;
           EIE = 0;
           
           P1=0xff;
           P3=0xff;
           P0=0xff;
             
          //system init ，其中串口0用定时器2，串口1用定时器1 
          //串口1的设置
          IE = 0x90;         //允许总中断和串口0的中断
          TMOD=0x20;       //定时器1工作在模式2
          //CKCON=0x30;      //Timerl和Timer2时钟为1／12CLOCK
	      //CKCON |= 0x10;     //Timer1 =1/4 clock   
          //CKCON |= 0x20;     //Timer2 =1/4 clock   
       
	  #if 0    
		  TL1=?;        //baud rate=1200 /11.0592       
          TH1=?;                                    
      #endif
	 
	  #if 0    
		  TL1=244;        //baud rate=2400 /11.0592       
          TH1=244;                                    
      #endif
      
	  #ifdef UART1_4800_11M //def  BAUD_4800_11M
		
          TL1=250;        //0xfa 0xfa is baud rate=4800 /11.0592
          TH1=250;
      #endif

      #ifdef UART1_9600_11M
		  TL1=253;        //0XFDFD baud rate=9600          /11.0592  
          TH1=253;
      #endif

      
    
		  SCON1=0x58;       //工作在模式1,允许接收
          //SCON1=0x50;         /* mode 1: 8-bit UART, enable receiver   */
          //SMOD_1 = 1;        //UART1 baud*2
		  ES1=1;             //串口1中断允许
          
		  SCON=0x58;       //工作在模式1，接收允许; 
          //SCON=0x50;         /* mode 1: 8-bit UART, enable receiver   */
		  
		  PCON = 0x00;        // SM0=0 SM1=1 在10位异步收发模式 SMOD=0 溢出速率/32 
          //PCON = 0x80;     //UART0 baud*2 
	
		  
		  //定时器2：波特率＝振荡器频率/(32*(65536-(RCAP2H,RCAP2L)))
          //9600=11059200/(32X(65536-RCAP2HL))

		  T2CON=0x30;      //用定时器2做串口0的波特率发生器
       
	   #if 0   
		  RCAP2H=0xfe;     // 11.0592M晶振下, baud rate=1200 
          RCAP2L=0xe0;
       #endif
	   #if 0   
		  RCAP2H=0xff;     // 11.0592M晶振下, baud rate=2400 
          RCAP2L=0x70;
       #endif
    
	   #ifdef UART0_4800_11M
 		  RCAP2H=0xff;     // 11.0592M晶振下, baud rate=4800 
          RCAP2L=0xb8;
       #endif


	   #ifdef UART0_9600_11M
		  RCAP2H=0xff;     // 11.0592M晶振下, baud rate=9600 
          RCAP2L=0xdc;
 	   #endif


        #ifdef  UART0_19200_11M
		  RCAP2H=0xff;     // 11.0592M晶振下, baud rate=19200 ?
          RCAP2L=0xee;
 	   #endif


        #ifdef  UART0_38400_11M
		  RCAP2H=0xff;     // 11.0592M晶振下, baud rate=38400 ?
          RCAP2L=0xf7;
 	   #endif




	      TMOD |=0x01;     //th1 auto load 2X8,th0 1X16
          ET0 = 1; 
          TH0 = 0xf7;
          TL0 = 0x60;
          TR0 = 1;
      
          TR2 = 1;
          TR1 = 1;

}/*end CPU_system_init*/