serial.c

CAN protocol implementation program

/******************************************************************************/
/* SERIAL.C: Low Level Serial Routines                                        */
/******************************************************************************/
/* This file is part of the uVision/ARM development tools.                    */
/* Copyright (c) 2005-2006 Keil Software. All rights reserved.                */
/* This software may only be used under the terms of a valid, current,        */
/* end user licence from KEIL for a compatible version of KEIL software       */
/* development tools. Nothing else gives you the right to use this software.  */
/******************************************************************************/

#include <LPC21xx.H>                     /* LPC21xx definitions               */
#include <stdio.h>

#include "adc.h"
#include "rtc.h"
#include "lcd_disp.h"
#include "gsm.h"

#define CR 0X0A
#define LF 0X0D
void send_bcd(int );
//	#define VREF_ADC 3.3
//	#define CRITICAL_VALUE_IR 150
//	#define CRITICAL_VALUE_LDR 150

	void send_current_time(void);
	void ascii(unsigned int);
	void hextobcd(unsigned long int);
	char a[]="CHN1:";
	char b[]="CHN2:";
	char c[]="CHN3:";
	char d[]="CHN4:";
	char e[]="TIME:";



//void SEND_CMD(unsigned char *BASE_ADD,unsigned char COUNT);
void sendchar (unsigned char); 
void delay1(void);

/* implementation of putchar (also used by printf function to output data)    */

void sendchar (unsigned char ch)                   /* Write character to Serial Port    */
  {
  
    U0THR = ch;                          /* output CR */
  while (!(U0LSR & 0x20));

  
}


int getkey (void)  {                     /* Read character from Serial Port   */

  while (!(U1LSR & 0x01));

  return (U1RBR);
}

int main (void)  {                /* execution starts here                    */
 unsigned int adcdata,adcdata1,temp,d1,d2,d3,d4,ch,p,count=0,count1=0;
          unsigned char i,data[]="RF BASED SECURITY SYSTEM";
		  unsigned char ss[]="WELCOME";
		  unsigned char dd[]="Ashwini.M.K:";
		  
  
		
		  IODIR0|=0X0400000;
		  IODIR0|=0XF0;
		  		 
		  lcd_initialise();
		 

		   lcd_command(0x01); 
		   lcd_command(0x80);
		   for(i=0;ss[i]!='\0';i++)
           {
		   display(ss[i]);
		   delay1();
		   if(i==15)
		   lcd_command(0x07);
		   } 
		    lcd_command(0x01);

			IOCLR1|=0x00300000;

			UART_INIT();
			GSM();
			

//		   rtc_init();	


PINSEL1|=0x15400000;
	
		  
while(1)
{		  

   		
				ADCR=0X01200401;

					 
				   while(!(ADDR & 0x80000000));
              adcdata=ADDR;

			  adcdata1=adcdata >> 6; 

			  adcdata1=adcdata1 & 0X3FF;
			  
			
			  temp=adcdata1;
				d1=temp%10;
				temp=temp/10;
				d2=temp%10;
				temp=temp/10;
				d3=temp%10;
				d4=temp/10;

				p=d4*1000+d3*100+d2*10+d1;

				d1+=0x30;
				d2+=0x30;
				d3+=0x30;
				d4+=0x30;
					
				if(p<100)
				   {

				   if(count<=0)
				   {
					 count=1;
					
					IOSET1|=0x00100000;
					delay1();
					IOCLR1|=0x00100000;
					delay1();
  
					SEND_CMD(CMD_5,20);
					 SEND_CMD("temp=",20);
					 
					 
			         
					 sendchar('T');
					 
					 sendchar('=');
					 sendchar(d4);
					 sendchar(d3);
					 
					 sendchar(d2);
					 
					 sendchar(d1);


					 sendchar(0x0d);
					 sendchar(0x0a);

					SEND_MSG(MSG_2_SEND,18);
					 
					
					 delay1();
					 delay1();
					 delay1();
					 delay1();
					 delay1();
					 delay1();
					 delay1();
					
					}
			  		}
		
			
				ADCR=0X01200404;



					while(!(ADDR & 0x80000000));
              adcdata=ADDR;

			  adcdata1=adcdata >> 6; 

			  adcdata1=adcdata1 & 0X3FF;
			  
			
			  temp=adcdata1;
				d1=temp%10;
				temp=temp/10;
				d2=temp%10;
				temp=temp/10;
				d3=temp%10;
				d4=temp/10;

				p=d4*1000+d3*100+d2*10+d1;

				d1+=0x30;
				d2+=0x30;
				d3+=0x30;
				d4+=0x30;

				if(p>800)
				{
				 if(count1<=0)
				 {
				   count1=1;

				   IOSET1|=0x00200000;
					delay1();
					IOCLR1|=0x00200000;
					delay1();
					 
				 SEND_CMD(CMD_5,20);
			     SEND_MSG(MSG_3_SEND,18);
					
					 delay1();
					 delay1();
					 delay1();
					 delay1();
					 delay1();
					 delay1();
				 }
				  }
   }
   }
 



   void delay1(void)
	{
	 unsigned long i=0;
	for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);
	for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);
	for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);
	for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);
	for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);for(i=0;i<=(60000*2);i++);
	}