
B–63083EN/02
F. MEMORY CARD INTERFACE
374
The capacity of a memory card usually indicates an unformatted capacity.
After formatting, the usable capacity decreases slightly. So, a memory
card with a capacity larger than the size of data and programs actually
stored needs to be prepared.
Example:When the size of data to be stored is 512KB
A memory card with a capacity of 1MB or more is required.
When a flash memory card is used, the last 128KB of the memory card
is used as a buffer area, so that the usable space decreases additionally by
128KB.
The BOOT SYSTEM formats a memory card using method called the
FAT file system. The formatting method called the flash file system is
also supported. However, the FAT file system and flash file system are
not compatible with each other, and the read and list functions cannot be
used.
Flash memory cards do not allow individual files to be deleted; all the files
on a flash memory card need to be deleted at the same time. Accordingly,
the following operations cannot be performed:
D Deletion of an existing file
D Renaming of a file
D Overwriting of a file
CardPro uses the flash file system as standard to format a flash memory
card. When using CardPro to format a flash memory card used with the
boot system, use the following command to format the card.
A:CPFORMAT drive–name:/F:FLASHFAT/NOCIS
Ramzo CardPro
Reading of files f f
Addition of files No file addition function
is available.
Listing of files f f
Ramzo CardPro
Reading of files f f
Addition of files f
Listing of files f f
NOTE
1 Ramzo is a memory card reader/writer manufactured by
Adtech System Science.
2 CardPro is a memory card reader/writer manufactured by
Data IO.
Memory card capacity
Memory card formatting
File operation with a
flash memory card
Notes on formatting a
flash memory card with
CardPro
Using a flash memory
card formatted with the
BOOT SYSTEM on other
systems
Using a flash memory
card formatted with
other systems on the
BOOT SYSTEM