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SPI 的代码
spi.c
#include // change to the appropriate header file
#include "spi.h"
/* spi_init function should be generated using the AppBuilder
*/
/*
** SpiWriteByte() writes a byte to the SP
spi.h
/*
** Header file : spi.h
*/
#if defined(_AVR)
/* SPI header for AVR */
#ifndef __SPI__H
#define __SPI__H
/*
** Constants for SpiInit()
*/
#define SPI_DATA_ORDER_MSB_FIRST 0x00
spi.c
#include "def.h"
extern void Delay(unsigned int nTime);
//************************************************************
//***********************************************************
//*****
spi.h
#include "def.h"
void config_SPI();
uint write_reg(unsigned char port,unsigned char reg,unsigned char dat);
unsigned char read_reg(unsigned char port,unsigned char reg);
spi.c
#include
#include "2440addr.h"
#include "2440lib.h"
#include "spi.h"
#include "def.h"
#define spi_count 0x80
#define SPI_BUFFER _NONCACHE_STARTADDRESS
void __irq Spi_Int(void);