/*A sample project file to be used with HI-TIDE, to demonstrate the functionality of the microcontroller's CCPx.*//*Refer to ccp.txt for additional information*/#include <pic18.h>#include "ccp.h"#include <stdio.h>void init(void);void putch(unsigned char);volatile bit UPDATE_REQUIRED;																			/*used to indicate when to refresh output data*/volatile char CURRENT_MODE1=0;																		/*used to indicate change CCP1CON register*/volatile char CURRENT_MODE2=0;																		/*used to indicate change CCP2CON register*/volatile bit SPECIAL_EVENT1=0;																			/*indicates  trigger event for CCP1*/volatile bit SPECIAL_EVENT2=0;																			/*indicates  trigger event for CCP2*/volatile bit CCP1INT=0;																							/*indicates that interrupt for CCP1 has occured*/volatile bit CCP2INT=0;																							/*indicates that interrupt for CCP2 has occured*/void main(void){	init();	while(1)	{		CCPR1L=DIP1;		CCPR2L=DIP2;		if (CCP1INT)		{			CCP1IE=0;			printf("CCP1 interrupt occured\n");																/*report interrupt on CCP1*/				CCP1INT=0;  			if (SPECIAL_EVENT1)				{					printf("CCP1 special event occured, TMR1 has been reset \n");		/*report special event on CCP1*/						SPECIAL_EVENT1=0;				}			CCP1IE=1;		}			if (CCP2INT)		{			CCP2IE=0;			printf("CCP2 interrupt occured\n");																/*report interrupt on CCP2*/				CCP2INT=0;  			if (SPECIAL_EVENT2)				{					printf("CCP2 special event occured, TMR3 has been reset GODONE value is: %d \n",GODONE);	/*report special event on CCP2*/						SPECIAL_EVENT2=0;				}			CCP2IE=1;		}						if (UPDATE_REQUIRED)							   			{				LED1=CURRENT_MODE1+CURRENT_MODE2*16;									/*update LEDs that are used to display current status of CCPs*/								CCP1CON=CURRENT_MODE1;																 /*update CCP1CON with new value*/				CCP2CON=CURRENT_MODE2;																 /*update CCP2CON with new value*/							printf("\n CCP1 STATUS\n----------------\n");											/*display status of CCP1*/				switch (CURRENT_MODE1)				{				case 0 :{	  printf("Capture/Compare/PWM off \n");break;}				case 2 :{  printf("Compare mode, toggle output on match,\n current value of  TRISC is %x \n",TRISC);	break;}				case 3 :{  printf("Virtual CAN component is not implemented \n");break;}				case 4 :{  printf("Capture mode, every falling edge\n");break;}				case 5 :{  printf("Capture mode, every rising edge\n");	break;}				case 6 :{  printf("Capture mode, every 4th rising edge\n");break;}				case 7 :{  printf(" Capture mode, every 16th rising edge\n");break;}				case 8 :{  printf("Compare mode,Initialize CCP pin Low, \non compare match force CCP pin High \n");	break;}				case 9 :{  printf("Compare mode,Initialize CCP pin High, \non compare match force CCP pin Low\n");break;}				case 10 :{printf("Compare mode,Generate software \ninterrupt on compare match. CCP pin is unaffected\n");break;}				case 11 :{ printf("Compare mode,Trigger special \nevent (reset TMR1 or TMR3)\n");	break;}				default : printf("\n unimplemented MODE \n");				}				printf("----------------");				printf("\n CCP2 STATUS\n----------------\n");												/*display status of CCP2*/								switch (CURRENT_MODE2)				{				case 0 :{	  printf("Capture/Compare/PWM off \n");break;}				case 2 :{  printf("Compare mode, toggle output on match \n");	break;}				case 3 :{  printf("Virtual CAN component is not implemented \n");break;}				case 4 :{  printf("Capture mode, every falling edge\n");break;}				case 5 :{  printf("Capture mode, every rising edge\n");	break;}				case 6 :{  printf("Capture mode, every 4th rising edge\n");break;}				case 7 :{  printf(" Capture mode, every 16th rising edge\n");break;}				case 8 :{  printf("Compare mode,Initialize CCP pin Low, \non compare match force CCP pin High \n");	break;}				case 9 :{  printf("Compare mode,Initialize CCP pin High, \non compare match force CCP pin Low\n");break;}				case 10 :{printf("Compare mode,Generate software \ninterrupt on compare match. CCP pin is unaffected\n");break;}				case 11 :{ printf("Compare mode,Trigger special \nevent (reset TMR1 or TMR3)\n");	break;}				default : printf("\n unimplemented MODE \n");				}								UPDATE_REQUIRED=0;				}	 }}void init(void){	T3CON=0xA1;																	/*T3CON controls TIMER3 AND selects which timer is used for each CCP*/ 				TMR3=0;																			/*Load initial value to TIMER3*/ 				TMR3ON=1;	T1CON=0x81;																	/*use TIMER1 */ 				TMR1=0;																			/*Load initial value to TIMER1*/                          		TMR1ON=1;	TRISB=0x30;																	/* Push button is connected to   RB4 to turn timers ON and OFF*/	TRISD=0xFF;																	/* 8-bit DIP switch to set  value of CCP1*/	TRISH=0xFF;																	/* 8-bit DIP switch to set  value of CCP2*/	TRISF=0x00;																	/*  LED panels are connected to PORTF */	TRISE=0x80;																	/* RE7 is IO pin for  CCP2*/	TRISC=0x04;																	/* RC2 is IO pin for  CCP1*/		ADCON1=0x0F;																/*configure pins of PORTF to be digital outputs*/																							PSPMODE=0;	RBIE=1;																			/* enable PORTB interrupts to*/	GIEH=1;																			/* allow interrupts from PUSH BUTTONS */	GIEL=1;			TXEN=1;																			/* enable serial port transmissions */	SPEN=1;					TXIE=0;																			/* not interrupt driven */			CCP1CON=0;																	/*initialise CCP1*/	CCPR1=0;		CCP1IF=0;																				CCP1IE=1;																	CCP2CON=0;																	/*initialise CCP2*/	CCPR2=0;		CCP2IF=0;																				CCP2IE=1;																	CURRENT_MODE1=0;	CURRENT_MODE2=0;	UPDATE_REQUIRED=1;}void putch(unsigned char c){	TXREG=c;																		/* transmit a character to Serial IO */	while(!TXIF)continue;	TXIF=0;}