C8051F单片机SPI读写F-RAM(铁电)C程序

huolf

头文件 SPI.H
#ifndef SPI_H
#define SPI_H
#define  WREN   0x06
#define  READ   0x03
#define  WRITE  0x02
#define  RDID   0x9F
#define  SNR    0xC3

void WriteSPI(uchar dat);
uchar ReadSPI(void);
uchar Read_Byte(ulong add);
void Write_Byte(ulong add,uchar dat);
void Write_String(ulong add,uchar *pStr,uint len);
void Read_String(ulong add,uchar *pStr,uint len);
#endif

//SPI.C程序

#include "C8051F120.h"
#include "main.h"
#include "spi.h"

void WriteSPI(uchar dat)
{
uchar SFR_PAGE_SAVE = SFRPAGE;
SFRPAGE = SPI0_PAGE;
SPIF = 0;
SPI0DAT = dat;
while(!SPIF);
SPIF = 0;
SFRPAGE = SFR_PAGE_SAVE;
  
}

更多源码见：http://www.52embed.com/viewthread.php?tid=95