#include <AT91SAM7X128.H>

AT91S_PIO * pPIO = AT91C_BASE_PIOA;
AT91S_PMC * pPMC = AT91C_BASE_PMC;
AT91S_SPI * pSPI = AT91C_BASE_SPI0;

int main (void){

// Enable the PIO clock
pPMC->PMC_PCER = (1<<AT91C_ID_PIOA);//(1<<AT91C_ID_PIOA)|

pPIO->PIO_PDR = (AT91C_PA18_SPI0_SPCK|AT91C_PA17_SPI0_MOSI|AT91C_PA16_SPI0_MISO|AT91C_PA12_SPI0_
NPCS0);
pPIO->PIO_ASR = (AT91C_PA18_SPI0_SPCK|AT91C_PA17_SPI0_MOSI|AT91C_PA16_SPI0_MISO|AT91C_PA12_SPI0_
NPCS0);
pPIO->PIO_PPUER = AT91C_PA16_SPI0_MISO;

// Enable the SPI clock
pPMC->PMC_PCER = (1<<AT91C_ID_SPI0);//(1<<AT91C_ID_PIOA)|
// Execute a software reset of the SPI twice
pSPI->SPI_CR = AT91C_SPI_SWRST;
pSPI->SPI_CR = AT91C_SPI_SWRST;
// Configure SPI in Master Mode with No CS selected !!!
pSPI->SPI_MR = (AT91C_SPI_MSTR | AT91C_SPI_MODFDIS | AT91C_SPI_PCS);
// Disable the PDC transfer
pSPI->SPI_PTCR = (AT91C_PDC_RXTDIS | AT91C_PDC_TXTDIS);

pSPI->SPI_CSR[0] = 0x00000482;
pSPI->SPI_MR = (0x18000001);//(0x000E0011);
// Enable the SPI
pSPI->SPI_CR = AT91C_SPI_SPIEN;

}

#include <AT91SAM7S128.H>

AT91S_PIO * pPIO = AT91C_BASE_PIOA;
AT91S_PMC * pPMC = AT91C_BASE_PMC;
AT91S_SPI * pSPI = AT91C_BASE_SPI;


int main (void){
// Enable the PIO clock
pPMC->PMC_PCER = (1<<AT91C_ID_PIOA);//(1<<AT91C_ID_PIOA)|

pPIO->PIO_PDR = (AT91C_PA14_SPCK|AT91C_PA13_MOSI|AT91C_PA12_MISO|AT91C_PA11_NPCS0);
pPIO->PIO_ASR = (AT91C_PA14_SPCK|AT91C_PA13_MOSI|AT91C_PA12_MISO|AT91C_PA11_NPCS0);
pPIO->PIO_PPUER = AT91C_PA12_MISO;

// Enable the SPI clock
pPMC->PMC_PCER = (1<<AT91C_ID_SPI);//(1<<AT91C_ID_PIOA)|
// Execute a software reset of the SPI twice
pSPI->SPI_CR = AT91C_SPI_SWRST;
pSPI->SPI_CR = AT91C_SPI_SWRST;
// Configure SPI in Master Mode with No CS selected !!!
pSPI->SPI_MR = (AT91C_SPI_MSTR | AT91C_SPI_MODFDIS | AT91C_SPI_PCS);
// Disable the PDC transfer
pSPI->SPI_PTCR = (AT91C_PDC_RXTDIS | AT91C_PDC_TXTDIS);

pSPI->SPI_CSR[0] = 0x00000482;
pSPI->SPI_MR = (0x18000001);//(0x000E0011);
// Enable the SPI
pSPI->SPI_CR = AT91C_SPI_SPIEN;

}

pSPI->SPI_MR = (0x18000001);//(0x000E0011);

#include <AT91SAM7S64.H>

AT91S_PIO * pPIO = AT91C_BASE_PIOA;
AT91S_PMC * pPMC = AT91C_BASE_PMC;
AT91S_SPI * pSPI = AT91C_BASE_SPI;

int main(void)
{
pPIO->PIO_PDR = AT91C_PA14_SPCK | AT91C_PA13_MOSI
| AT91C_PA12_MISO | AT91C_PA11_NPCS0;
pPIO->PIO_ASR = AT91C_PA14_SPCK | AT91C_PA13_MOSI
| AT91C_PA12_MISO | AT91C_PA11_NPCS0;
pPIO->PIO_PPUER = AT91C_PA12_MISO;

// Enable SPI clock
pPMC->PMC_PCER = 1 << AT91C_ID_SPI;

// Execute a software reset of the SPI twice
pSPI->SPI_CR = AT91C_SPI_SWRST;
pSPI->SPI_CR = AT91C_SPI_SWRST;

// Configure SPI in Master Mode
pSPI->SPI_MR = AT91C_SPI_MSTR | AT91C_SPI_MODFDIS;

// Configure CS0
pSPI->SPI_CSR[0] = 0x00000482;

// Enable SPI
pSPI->SPI_CR = AT91C_SPI_SPIEN;

while(1)
{
AT91C_BASE_SPI->SPI_TDR = 0x5555;
while(!(AT91C_BASE_SPI->SPI_SR & AT91C_SPI_RDRF));
}
}