Establishing UART communication using PIC16F886

/*
void Serial_1_Send_byte(uint8_t trbuf1)
{
 TXREG=trbuf1; 
 while(0==TXIF);
 }*/


void Serial_1_Send_byte(uint8_t trbuf1)
{
 TXREG=trbuf1;
 while(0==TRMT);
}

char Serial_Receive_byte()
{
   
   while(0==RCIF);
    return RCREG;
    
}

#include <htc.h>
#include <stdio.h>
#include<pic.h>
//#include<stdint.h>
#include"delay.h"
#define _XTAL_FREQ 80000000
unsigned int i=0;
unsigned char get_value;

unsigned char c=0;
unsigned char ch;
#define SBIT_TXEN 5
#define SBIT_SPEN 7
#define SBIT_CREN 4
 

#define LED RC2
#define LED_RX RC7 // Pin assigned RX LED
#define LED_TX RC6 // Pin assigned TX LED
#define DE RC5

#define RECEIVE 0
#define TRANSMIT 1
#define READ_REG 3
#define WRITE_REG 6
#define ILLEGAL_DATAVALUE 0x03
#define FALSE 0
#define TRUE 1
#define METER_ID 1
unsigned short int cnt, num,Dgt=0;
unsigned int j=0;
unsigned char* str;
unsigned int count = 0;
char data = 0;
unsigned char rxbuf[50];
unsigned char ser_data[95];
unsigned char crc_data[95];
unsigned char Max_scroll = 0;
unsigned char buff[10];
//volatile uint8_t index = 0, rec_flag = 0, Delay_count = 0, Id[10], Buffer_count = 0, Cal_count = 0, Disp_count = 0, inc = 0, One_sec_update = 0, Auto_scroll_count = 0;
char data1[10];
unsigned char buf[20];
unsigned int index=0;
unsigned int rec_flag = 0;

//__CONFIG( HS_OSC & WDTE_OFF & PWRTE_ON & CP_OFF & BOREN_ON & LVP_OFF & CPD_OFF & DEBUG_OFF);
__CONFIG( FOSC_HS & WDTE_OFF & PWRTE_ON & CP_OFF & BOREN_ON & LVP_OFF & CPD_OFF & DEBUG_OFF);

void Serial_1_Send_byte(unsigned char trbuf1) {
TXREG=trbuf1;
while(0==TRMT);
}

char Serial_Receive_byte() {
while(!RCIF);
return RCREG;
}
void Send_string_uart1(const unsigned char *string) {
unsigned char i=0;
do {
TXREG=string[i++];
while(TXIF==0);
TXIF=0;
} while(string[i]!='\0');
}
void interrupt isr(void) {
unsigned char ch;
//ch=RCREG;
// Serial_1_Send_byte(ch);
__delay_ms(5);
if((PIE1bits.RCIE==1)&&(PIR1bits.RCIF=1)) {
PIR1bits.RCIF=0;
//Send_string_uart1("UART TEST");
// Send_string_uart1("\n");
//Serial_1_Send_byte(10);
ch=RCREG;
Serial_1_Send_byte(ch);
index++;
if(index>=20) {
index=0;
}
if(index>=8) {
rec_flag = 1;
DE=1;
}
}
 
if(1==RCSTAbits.FERR) {
RCSTAbits.SPEN=0;
RCSTAbits.SPEN=1;
}
if(1==RCSTAbits.OERR) {
RCSTAbits.CREN=0;
RCSTAbits.CREN=1;
}
}
 
void Serial_1_Init() {
BRG16=1;//1-> 16 bit 0-> 8 bit
SYNC=0; //0->ASYN 1-SYNC
BRGH=1;// 0 for LOW baudrate 1 for High
SPBRG = 207;
RCIDL=1;
TXEN=1;//1->Transmit enable 0-> transmit disble
SPEN=1;//1->enable serial port 0->disable
CREN=1; //1-> enable continous receive 0-> disble receiver
INTCON = 0X00;
TRMT=1;// 1-> Transmit register is empty 0-> full
CCP1IE=1;
RCIE=1;
RCIF=0;
// TXEN=0;//1->Transmit enable 0-> transmit disble

}
 
 
void Timer1_Interrupt() {
INTCON = 0b00000000;
PIE1=0b00000001;
PIR1=0x01;
TMR1H=0xF8;
TMR1L=0xAD;
T1CON=0x31;
}
 
void Init_Controller() {
cnt=100;
//OSCCON=0X71;
TRISC = 0x80;
PORTC = 0x80;
TRISB=0X00;
PORTB = 0X00;
TRISA=0x00;
PORTA=0x00;
ADCON0= 0x00;
ANSEL = 0b00000000;
Timer1_Interrupt();
}
 
void main(void) {
Init_Controller();
Serial_1_Init();
GIE=1;
PEIE=1;
TMR1IE=1;

while(1) {

}

}