它的動作是master丟一個值到slave
slave 在把數值用PORTB腳位以LED方式顯示出來
會做這樣簡單的動作是想讓自己了解SPI的傳輸條件
可是他失敗了 煩請各位板大先進解惑

以下是程式MASTER:
#include <p30F4011.h>
#include <timer.h>
#include "spi.h"

#define FCY 7372800*2
#define SPI_CS PORTEbits.RE3
#define DIR_SPI_CS TRISEbits.TRISE3
#define MODE_SPI_CS ADPCFGbits.PCFG3

_FOSC(CSW_FSCM_OFF & XT_PLL8);
_FWDT(WDT_OFF);
_FBORPOR(PBOR_OFF & MCLR_EN);
_FGS(CODE_PROT_OFF);
unsigned long int i;
void __attribute__((__interrupt__)) _SPI1Interrupt(void)
{
IFS0bits.SPI1IF = 0;
SPI1STATbits.SPIROV = 0;
}
void Init_Port(void);
void Init_SPI(void);
main()
{
Init_Port();
Init_SPI();
SPI_CS = 0;

WriteSPI1(0x0055);
while(SPI1STATbits.SPIRBF);
SPI_CS = 1;

}
void Init_Port(void)
{
SPI_CS = 1;
DIR_SPI_CS = 0;
MODE_SPI_CS = 1;
}

void Init_SPI(void)
{

unsigned int config1 , config2 ;

config1 = FRAME_ENABLE_OFF &
FRAME_SYNC_OUTPUT &
ENABLE_SDO_PIN &
SPI_MODE16_OFF &
SPI_SMP_OFF &
SPI_CKE_ON &
SLAVE_ENABLE_OFF &
CLK_POL_ACTIVE_HIGH &
MASTER_ENABLE_ON &
SEC_PRESCAL_8_1 &
PRI_PRESCAL_64_1;

config2 = SPI_ENABLE &
SPI_IDLE_CON &
SPI_RX_OVFLOW_CLR;

OpenSPI1(config1,config2);
ConfigIntSPI1(SPI_INT_PRI_6 & SPI_INT_EN);
}

程式SLAVE:
#include <p30f4011.h>
#include <spi.h>
#define FCY 7372800 * 2

_FOSC(CSW_FSCM_OFF & XT_PLL8);
_FWDT(WDT_OFF);
_FBORPOR(PBOR_OFF & MCLR_EN);
_FGS(CODE_PROT_OFF);
#define SPI_CS PORTEbits.RE3
#define DIR_SPI_CS TRISEbits.TRISE3
#define MODE_SPI_CS ADPCFGbits.PCFG3
void Init_SPI(void);
void Init_Port(void);
void __attribute__((__interrupt__)) _SPI1Interrupt(void)
{
IFS0bits.SPI1IF = 0;
SPI1STATbits.SPIROV = 0;
}
unsigned int data;
main()
{
TRISB=0xff00;
Init_Port();
Init_SPI();
SPI_CS = 0;
while(!DataRdySPI1());
data = ReadSPI1();
LATB=data;

SPI_CS = 1;
}
void Init_Port(void)
{
SPI_CS = 1;
DIR_SPI_CS = 1;
MODE_SPI_CS = 1;
}
void Init_SPI(void)
{
unsigned int config1;
unsigned int config2;
config1 = FRAME_ENABLE_OFF &
FRAME_SYNC_OUTPUT &
ENABLE_SDO_PIN &
SPI_MODE16_OFF &
SPI_SMP_OFF &
SPI_CKE_ON &
SLAVE_ENABLE_ON &
CLK_POL_ACTIVE_HIGH &
MASTER_ENABLE_OFF&
SEC_PRESCAL_8_1 &
PRI_PRESCAL_64_1;

config2 = SPI_ENABLE &
SPI_IDLE_CON &
SPI_RX_OVFLOW_CLR;

OpenSPI1(config1,config2);
ConfigIntSPI1(SPI_INT_PRI_6 & SPI_INT_EN);
}