no accuarate readings in uart interface with pic16f877a

#include <htc.h>

//#if defined(WDTE_OFF)
//__CONFIG(WDTE_OFF & LVP_OFF);
//#elif defined (WDTDIS)
//__CONFIG(WDTDIS & LVPDIS);
//#endif
int main(void)
{
    TRISC6 = 0;
    TRISC7 = 1;
    SPBRG = 25 ;
    BRGH =0 ;
    SPEN =1 ;
    SYNC = 0 ;
    SREN =1 ;
    TXEN =1;
    

    while (1)
    {
        TXREG ='A';
        while(TXIF == 0);
        TXIF=0;
    }
 return 0;
}

        TXSTA=0;                   //transmitter1 initillization
        RCSTA=0;                   //reciever1 init
        TXSTAbits.CSRC  = 0;        //Clock source select bit
	TXSTAbits.TX9   = 0;       //Selects 8-bit transmission
        TXSTAbits.SENDB = 0;      //Send Break Character bit
        TXSTAbits.TXEN=1;          // Transmit enable bit
        TXSTAbits.BRGH=0;           // High baud rate (fosc/16)
        TXSTAbits.SYNC=0;         // Asynchronous mode
        RCSTAbits.RX9 = 0;   //RX9 pin
       
        RCSTAbits.SPEN=1;       // Serial port enable bit
        RCSTAbits.CREN=1;       // Continuous receive enable bit
        BAUDCONbits.BRG16=1;
        /***BAUDRATE Configuration************/
	BAUDCONbits.ABDOVF = 0;   //No BRG rollover has occurred
	BAUDCONbits.WUE    = 0;   //RXx pin is not monitored or the rising edge detected
	BAUDCONbits.ABDEN  = 0;   //Baudrate Measurement is Disabl
        SPBRG=51;              // To get 9600 baud rate at 8MHZ frequency
        SPBRGH=0;//setting SBREG at 0
        //TRISCbits.TRISC6 = 0;
        //TRISCbits.TRISC7 = 1;

while(TXSTAbits.TRMT==0);
        Nop(); //No Output
        // place the byte in TXREG for transfer
        TXREG = 'A';

#include<pic.h>

        

__CONFIG(0x3f72);

 

#define FOSC       20000     //20Mhz==>20000Khz

#define BAUD_RATE   9.6     //9600 Baudrate

#define BAUD_VAL   ((char)(FOSC/ (16 * BAUD_RATE )) – 1)     //Calculation For 9600 Baudrate @10Mhz

 

void main()

   {
   TRISC=0xc0;   //RC7,RC6 set to usart mode(INPUT)

   TXSTA=0x24;   //Transmit Enable

   SPBRG=BAUD_VAL; //9600 baud at 10Mhz

   RCSTA=0x90;   //Usart Enable, Continus receive enable

   TXREG='0';

 

   while(1)

   {
         if(TXIF==1)

         TXREG='A';

        

   }

}