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Compact Flash Library provides routines for accessing data on Compact Flash
card (abbrev. CF further in text). CF cards are widely used memory elements,
commonly found in digital cameras. Great capacity (8MB ~ 2GB, and more) and
excellent access time of typically few microseconds make them very attractive for
microcontroller applications.
In CF card, data is divided into sectors, one sector usually comprising 512 bytes
(few older models have sectors of 256B). Read and write operations are not per-
formed directly, but successively through 512B buffer. Following routines can be
used for CF with FAT16, and FAT32 file system. Note that routines for file han-
dling can be used only with FAT16 file system.
Important! Before write operation, make sure you don’t overwrite boot or FAT
sector as it could make your card on PC or digital cam unreadable. Drive mapping
tools, such as Winhex, can be of a great assistance.
Cf_Init
Cf_Detect
Cf_Total_Size
Cf_Enable
Cf_Disable
Cf_Read_Init
Cf_Read_Byte
Cf_Read_Word
Cf_Write_Init
Cf_Write_Byte
Cf_Write_Word
Cf_Find_File
Cf_File_Write_Init
Cf_File_Write_Byte
Cf_Read_Sector
Cf_Write_Sector
Cf_Set_File_Date
Cf_File_Write_Complete
Function Cf_Set_Reg_Adr is for compiler internal purpose only.
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Compact Flash Library
Library Routines