nx25p40.h

这是我做项目时的一个NX25P40(FLASH)芯片测试程序。相信对做单片机开发需要大容量FLASH的朋友有帮助。该测试程序采用keil51开发

#include "reg52.h"
#ifdef _NX25P40_
       #define EXT_NX25P40
sbit CS   =  P1^3;
sbit DI   =  P1^1;
sbit DO   =  P1^2;
sbit CLK  =  P1^0;
#else
       #define EXT_NX25P40   extern
#endif
EXT_NX25P40 void NX25P40_SPI(unsigned char CMD,unsigned long ADDR,unsigned char*VAR,unsigned char lenth,unsigned char *buf);
EXT_NX25P40 void Delet_Datasheet(void);
EXT_NX25P40 unsigned char Write_Datasheet(unsigned long ADDR,unsigned char *var);
EXT_NX25P40 void Cancel_Datasheet(unsigned long ADDR);
EXT_NX25P40 void Read_Datasheet(unsigned long ADDR,unsigned char *var,unsigned char len);
EXT_NX25P40 unsigned long* Init_Datasheet(void);