drv_spi.c

来自「使用spi接口实现主」· C语言 代码 · 共 61 行

#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;
	// configure spi port
	// 8-bit data, MSB first, SPI Master
 
//	*pSPI_CTL = (*pSPI_CTL | SPE);
	*pSPI_CTL = MSTR;
}

void Drv_config_to_slave()
{
	*pSPI_CTL = PSSE|CPHA|CPOL;                            ;
}
void Drv_config_to_slave1()
{
	*pSPI_CTL = PSSE;                            ;
}
void Drv_SPI_enable()
{
	*pSPI_CTL |= SPE;
	
}

void Drv_SPI_write(char* ptr, int lenth)
{
	
}

int Drv_SPI_read(char* ptr )
{
	
}