at45xx.h

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#ifndef _AT45xx_H
#define _AT45xx_H 1

#define FCS0 RC2         
/*
#define FCS1 RA3         ///< O   First SDF
#define FRES RA1         ///< O   RESET 
#define FWP  RA2         ///< O   Write protect
*/
#define  DF_CS_LO()  FCS0=0
#define  DF_CS_HI()  FCS0=1

#define MAIN_MEMORY_PAGE_READ                    0x52
#define BUFFER1_READ                             0x54
#define BUFFER2_READ                             0x56
#define MAIN_MEMORY_PAGE_TO_BUFFER1_COPY         0x53
#define MAIN_MEMORY_PAGE_TO_BUFFER2_COPY         0x55
#define MAIN_MEMORY_PAGE_TO_BUFFER1_COMPARE      0x60
#define MAIN_MEMORY_PAGE_TO_BUFFER2_COMPARE      0x61
#define BUFFER1_WRITE                            0x84
#define BUFFER2_WRITE                            0x87
#define BUFFER1_PROGRAM_WITH_ERASE               0x83
#define BUFFER2_PROGRAM_WITH_ERASE               0x86
#define BUFFER1_PROGRAM_NO_ERASE                 0x88
#define BUFFER2_PROGRAM_NO_ERASE                 0x89
#define PAGE_ERASE                               0x81
#define BLOCK_ERASE                              0x50
#define MAIN_MEMORY_THROUGH_BUFFER1_PROGRAM      0x82
#define MAIN_MEMORY_THROUGH_BUFFER2_PROGRAM      0x85
#define AUTO_PAGE_THROUGH_BUFFER1_REWRITE        0x58
#define AUTO_PAGE_THROUGH_BUFFER2_REWRITE        0x59
#define DF_STATUS                                0x57

#define DF_BUFFER1 0x00
#define DF_BUFFER2 0x01

#define IS_DF_BUSY() IS_DF_READY_LO()

#define DF_STATUS_READY_MASK   0x80
#define IS_DF_READY(_status_)      (_status_ &                      \
                                            DF_STATUS_READY_MASK)
#define DF_STATUS_COMP_MASK 0x40
#define IS_DF_COMP_OK(_status_) ((_status_ &                     \
                                            DF_STATUS_COMP_MASK) \
                                            == 0)
                                            
#define DF_STATUS_DENSITY_MASK 0x38
#define DF_1MBIT_DENSITY_CODE  0x08
#define DF_2MBIT_DENSITY_CODE  0x10
#define DF_4MBIT_DENSITY_CODE  0x18
#define DF_8MBIT_DENSITY_CODE  0x20
#define DF_16MBIT_DENSITY_CODE 0x28
#define DF_32MBIT_DENSITY_CODE 0x30
#define DF_64MBIT_DENSITY_CODE 0x38

#define MAX_PAGE_32MBIT_DENSITY    8192
#define MAX_PAGE_1MBIT_DENSITY      512
#define PAGESIZE                    264

BYTE DF_ReadStatus(void);
void DF_WriteBuffer1(WORD Address, BYTE* Data, WORD size);
void DF_ReadBuffer1(WORD Address, BYTE* data, WORD size);
void DF_ErasePage(WORD PageNum);
void DF_ReadMainMemory(WORD PageNum, WORD SubAddress, BYTE *buff, WORD size);
void DF_Buffer12MainMemory(WORD PageNum);
void DF_Buffer12MainMemoryE(WORD PageNum);
void DF_Page2Buffer1(WORD PageNum);
void DF_Compare(WORD PageNum);
void DF_AutoPageRewrite(WORD PageNum);


#endif
//********************************************************[ENDL]***************