User's Manual

30
8600 Series Mobile Computer Reference Manual
1.8 SD CARD
SD card can be accessed directly by using the provided functions in user applications. Yet,
when the mobile computer is equipped with an SD card and connected to the host
computer via the USB cable, it can be treated as a removable disk (USB mass storage
device) as long as it is configured properly through programming or via System Menu |
8. Next Page | 1. Storage Menu | 1. Run As USB Disk. Refer to 3.8 Storage Menu.
Note: While running BASIC applications, the size of DAT files on SD card can be
calibrated. Go to System Menu | 8. Next Page | 1. Storage Menu | 2. Access
SD Card | 4. Check File Size to refresh the size of “A:\BASICRUN\TXACTn.DAT”
(n=1~6).
1.8.1 FILE SYSTEM
For 8600 Series, it supports FAT12/FAT16/FAT32 and allows formatting the card through
C programming or via System Menu | 8. Next Page | 1. Storage Menu | 2. Access
SD Card. Based on the capacity of the card, it will automatically decide the FAT format:
Card Capacity
FAT Format Sectors per Cluster
≦ 32 MB
FAT12 32
≦ 1 GB
FAT16 32
≦ 2 GB
FAT16 64
≦ 8 GB
FAT32 8
1.8.2 DIRECTORY
Unlike the file system on SRAM, the file system on SD card supports directories of
hierarchical tree structure and allows creating sub-directories. Several directory names
are reserved for particular use.
Reserved Directory
Related Application or Function Remark
\Program
 System Menu | Load Program
 Program Manager | Download
 Program Manager | Activate
 Kernel Menu | Kernel Update
 UPDATE_BASIC()
Store programs to this folder so that you can
download them to the mobile computer:
 C program — *.SHX
 BASIC program — *.INI and *.SYN
\BasicRun BASIC Runtime Store DAT and DBF files that are created and
accessed in BASIC runtime to this folder.
Their permanent filenames are as follows: