PWM from PIC16F877a....

#include <htc.h>
__CONFIG(LVP_OFF & BOREN_OFF & PWRTE_ON & WDTE_OFF & FOSC_HS);
#define _XTAL_FREQ 20000000
 
void  HSerinit();
 
void main(void)                        // program entry
    {

    int index = 0;
    unsigned char ch;
    ADCON1 = 0x6;                    // Analogue off                    
    HSerinit();
       __delay_ms(150);
    while(1)                        // endless Loop
        {

        
         while(!TXIF);                    // Wait for module to finish
         TXREG = 'A';  
             
 
        }
    }
void HSerinit()
{
    TRISC = 0x80;                    // TX was an input!
    SPBRG = 129;                    // 20Mhz xtal 9600 BAUD
    TXSTA = 0x24;                    // TXEN and BRGH
    RCSTA = 0x90;                    // SPEN and CREN
}

#include <htc.h>
__CONFIG(LVP_OFF & BOREN_OFF & PWRTE_ON & WDTE_OFF & FOSC_HS);
#define _XTAL_FREQ 20000000
 
 
unsigned char  HSerin(void);
void HSerout(unsigned char ch), HSerinit(void);
 
void main(void)						// program entry
	{

	TRISB=0X00;
	PORTB=0X00;
	int index = 0;
	unsigned char ch;
	ADCON1 = 0x6;					// Analogue off					
	HSerinit();
       __delay_ms(150);
	while(1)						// endless Loop
		{
	      if(RCREG=='A'){
	RB7=1;}				//FOR TESTING RECEIVED DATA....!!
 
		}
	}
 
void HSerinit()
	{
	TRISC = 0xC0;					// should ideally be set
	SPBRG = 129;					// 20Mhz xtal 9600 BAUD
	TXSTA = 0x24;					// TXEN and BRGH
	RCSTA = 0x90;					// SPEN and CREN
	}

#include <htc.h>
__CONFIG(LVP_OFF & BOREN_OFF & PWRTE_ON & WDTE_OFF & FOSC_HS);
#define _XTAL_FREQ 20000000
 
void  HSerinit();
 
void main(void)                        
    {

TRISA = 0xff ;
ADCON1=0b00000000;
ADCON0=0b10000001;//000 = channel 0, (RA0/AN0)
	ADIF=0;
	ADIE=1;
	PEIE=1;                                   
    HSerinit();
       __delay_ms(150);
    while(1)                
        {

	__delay_ms(10);
    GO_DONE=1;
	__delay_ms(10);
        
         while(!TXIF);                 
         TXREG = ADRESH;              
 
        }
    }
void HSerinit()
{
    TRISC = 0x80;                    // TX was an input!
    SPBRG = 129;                    // 20Mhz xtal 9600 BAUD
    TXSTA = 0x24;                    // TXEN and BRGH
    RCSTA = 0x90;                    // SPEN and CREN
}

#include <htc.h>
__CONFIG(LVP_OFF & BOREN_OFF & PWRTE_ON & WDTE_OFF & FOSC_HS);
#define _XTAL_FREQ 20000000
 
void  HSerinit();
 
void main()                        
    {


    PR2 = 0b11111001 ;
	T2CON = 0b00000100 ;   
	CCP1CON = 0b00111100;                  
  ADCON1 = 0x6;  
 HSerinit();
 __delay_ms(150);
	while(1)
		{
     while(!RCIF);					// Wait for a character
		CCPR1L= RCREG; 

}
	}















void HSerinit()
{
    TRISC = 0x80;                    // TX was an input!
    SPBRG = 129;                    // 20Mhz xtal 9600 BAUD
    TXSTA = 0x24;                    // TXEN and BRGH
    RCSTA = 0x90;                    // SPEN and CREN
}

	ADIF=0;
	ADIE=1;
	PEIE=1;