各位高手:
小弟目前想做的是由RS232丟訊號進入master,然後經由SPI,由slave的232丟出到另一台電腦.但是現在另外一台電腦所收到的資料都一同一個奇怪符號,貼上master and slave 的程式,希望幫我看一下:

//This is master chip to control the slave program

#pragma chip PIC16F877

bit ReceiveReady;
char RC_data;

#include "int16CXX.h"
#pragma origin 4
interrupt server(void)
{
int_save_registers
if(RCIF==1)
{
SSPBUF=RCREG;
ReceiveReady=1;
RCIF=0;
}

int_restore_registers
}

void initUSART()
{
GIE=1;
PEIE=1; //use interrupt

SPEN=1; //Enable Usart
CREN=1; //Enable CR
TXEN=1; //Enable TX

BRGH=1;
SPBRG=25; //Baud Rate =9.6k

SYNC=0; //asynchronous

TXIE=0; //disable transmit interrupt TXIF
RCIE=1; //enable receive interrupt RCIF

TX9=0; // TX 8-bit
RX9=0;
}

void enableSPI (void)
{
ADCON1=bin(1000.0100); // all digital
// when using SSP in SPI module
//TRISA.5; Master not care SS bar
SSPM3=0; SSPM2=0; SSPM1=0; SSPM0=0; //master moder clock=Fosc/4
TRISC.3=0; //for master mode (SCK)
//TRISC.4 is automatically controlled by SPI module
TRISC.5=0; //SDO

SMP=0;
CKP=1; //idle for high
CKE=0; //falling edge and no using SS bar
SSPEN=1; //enable the serial PORT

SSPIE=0;
SSPIF=0;
}

void disableSPI (void)
{
SSPEN=0; // disable the serial PORT
}

void main (void)
{
TRISC=bin(1000.0000);
PORTC=0x00;

TRISD=0x00;
PORTD=0x00;

initUSART();
enableSPI();

while(1)
{

if( ReceiveReady==1)
{
ReceiveReady=0;
}
BF=0;
SSPIF=0;
}

} //main
-----------------------------------------------------------------------


//This is a slave chip for receiving data from master chip
//then sent data to 232 to PC terminal

#pragma chip PIC16F877

bit ReceiveReady;
char RC_data;

#include "int16CXX.h"
#pragma origin 4
interrupt server(void)
{
int_save_registers

;

int_restore_registers
}

void initUSART()
{
GIE=1;
PEIE=1; //use interrupt

SPEN=1; //Enable Usart
CREN=1; //Enable CR
TXEN=1; //Enable TX

BRGH=1;
SPBRG=25; //Baud Rate =9.6k

SYNC=0; //asynchronous

TXIE=0; //disable transmit interrupt TXIF
RCIE=0; //disable receive interrupt RCIF

TX9=0; // TX 8-bit
RX9=0;
}

void enableSPI (void)
{
ADCON1=bin(1000.0100); // all digital(ss bar)
// when using SSP in SPI module

SSPM3=0; SSPM2=1; SSPM1=0; SSPM0=1; //slave mode, clock form master

TRISC.3=1; //for slave mode (SCK)
//TRISC.4 is automatically controlled by SPI module
TRISC.5=0; //SDO

SMP=0; //slave mode must be clear
CKP=1; //idle for high
CKE=0; //falling edge
SSPEN=1; //enable the serial PORT

SSPIF=0;
SSPIE=1;
}

void disableSPI (void)
{
SSPEN=0; //disable the serial PORT
}

void main (void)
{

TRISC=bin(1000.0000);
PORTC=0x00;

TRISD=0x00;
PORTD=0x00;

initUSART();
enableSPI();

while(1)
{

if(BF==1)
{
TXREG=SSPBUF;
while(!TRMT)
;
BF=0;
SSPIF=0;
}

}

} //main