drv_spi.c

使用spi接口实现主

#include <cdefBF533.h>

#include "drv_spi.h"


void Drv_Config_slave_read()
{
	
	*pSPI_CTL = (((*pSPI_CTL)&0xFFFC)|TIMOD_R);
}

void Drv_config_slave_write()
{
	*pSPI_CTL |= (((*pSPI_CTL)&0xFFFC)|TIMOD_T)  |EMISO;		
}

void Drv_Config_master_read()
{
	*pSPI_CTL = (((*pSPI_CTL)&0xFFFC)|TIMOD_R) | EMISO;	
}
void Drv_config_master_write()
{
	
	*pSPI_CTL |= (((*pSPI_CTL)&0xFFFC)|TIMOD_T);
}

void Drv_config_to_master()
{
	*pSPI_FLG = FLS1;
	// Set baud rate SPI_SCK = HCLK/(2*SPIBAUD) SCK	
	*pSPI_BAUD = 2;//SPI_CLK = 30MHz
	// configure spi port
	// 8-bit data, MSB first, SPI Master
 

	*pSPI_CTL = MSTR;
}

void Drv_config_to_slave()
{
	*pSPI_CTL = PSSE;
}

void Drv_SPI_enable()
{
	*pSPI_CTL |= SPE ;
	
}

void Drv_SPI_disable()
{
	*pSPI_CTL &= ~SPE ;
	
}
void Drv_SPI_write(char* ptr, int lenth)
{
	
}

int Drv_SPI_read(char* ptr )
{
	
}


void Drv_clean_revbuf(void)
{
	int temp;
	
    	    while(*pSPI_STAT & RXS)    	
    	    temp = *pSPI_RDBR;
}