[Moved] PIC18f4550 board to board communication problem using USART

unsigned char txbuf[]={0x02, 0x31, 0x37, 0x3B, 0x3B, 0x44, 0x45,0x03,};
unsigned char z, i;
void TXbyte(char data)
{
    while(TXSTAbits.TRMT==0); //wait tiiltransmit buffer in not empty
    TXREG = data; // Transmit Data
}//end TXbyte
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void main()
{
SPCON1 = 0; // Make sure SPI is disabled //Refer Datasheet
 TRISCbits.TRISC7=1; // RX
 TRISCbits.TRISC6=0; // TX
 SPBRG = 0x9B; //4800 baud XTAL=20MHz, Fosc=48Mhz

 TXSTA = 0x20; // TX enable BRGH=0
 RCSTA = 0x90; 

 for(i=0;txbuf[i]!='\0';i++)
  {
   TXbyte(txbuf[i]);
  }
}//main ends

void main()
{
SSPCON1 = 0; // Make sure SPI is disabled //Refer Datasheet
 TRISCbits.TRISC7=1; // RX
 TRISCbits.TRISC6=0; // TX
 SPBRG = 0x9B; //4800 baud XTAL=20MHz, Fosc=48Mhz
  TXSTA = 0x20; // TX enable BRGH=0
 RCSTA = 0x90; // continuous RX
 BAUDCON = 0x00; // BRG16 = 0
 
for(i=0;i<8;i++) //for loop receive 8 byte to receive and it will store in rxbuf
 {
 while(PIR1bits.RCIF==0); //Wait util data from PC is received
 rxbuf[i]=RCREG;
 PIR1bits.RCIF = 0;
 }
if (rxbuf[1]==0x31 && rxbuf[2]==0x37 ) // this loop will check 1st and 2nd byte whether it is 1 and 7 or not
{
PORTBbits.RB5=1;
}
}