B-26
Software utilities
PC-510 user’s manual
The maximum baud rate is dependent on the processor speeds of the
remote PC and the PC-510.
The received file size is rounded up to the nearest 128 byte boundary.
See also
REMDISK.EXE, REMSERV.EXE
≡
VDISK.SYS
Purpose
This device driver allows the user to use memory as a disk.
Syntax
DEVICE= VDISK [
size [secs [dirs]]] [/E] [/NOTIFEXT]
Parameters
n
size
specifies the size of the VDISK in kilo (K) bytes. The default is
64K if base memory is selected. Otherwise, if /E is entered, then the
size of the VDISK is all available extended memory (size is 64K
smaller if DOS is loaded HIGH). The memory selected will be allo-
cated from the DOS memory pool, decreasing the amount of memory
available for programs, unless the extended memory switch is used.
n
secs
specifies the sector size in bytes. The default is 512 bytes per
sector. This value must be 128, 256, 512 or 1024. All other values
are not valid and the default of 512 bytes will be used.
n
dirs
specifies the number of root directory entries. The default is 64
directory entries. There may be any number of root directory entries
between 2 and 1024. If an odd number is given, it will be rounded
up to the nearest multiple of 16, in order to fill the entire sector.
n
/E
causes VDISK to use extended memory (memory above the 1 MB
boundary) instead of DOS program memory for the disk.
n
/NOTIFEXT
causes the virtual drive to not be installed if extended
memory exists.
Note
Interrupts are turned off during the transfer of data from extended
memory to conventional memory.
The VDISK increases the resident size of DOS.
Содержание PC-510
Страница 2: ...O C T A G O N S Y S T E M S Embedded PCs For Extreme Environments PC 510 User s Manual 5171 0505 ...
Страница 7: ...Notice to user PC 510 user s manual ...
Страница 17: ...xii Contents PC 510 user s manual ...
Страница 23: ...About this manual PC 510 user s manual ...
Страница 25: ...Overview of Section 1 PC 510 user s manual ...
Страница 35: ...2 2 Quick start PC 510 user s manual Figure 2 1 PC 510 component diagram ...
Страница 36: ...2 3 PC 510 user s manual Quick start Figure 2 2 PC 510 center to center hole dimensions 331 2 858 ...
Страница 45: ...2 12 Quick start PC 510 user s manual ...
Страница 55: ...3 10 SETUP programs PC 510 user s manual ...
Страница 59: ...4 4 Save and run programs PC 510 user s manual ...
Страница 61: ...Overview of Section 2 PC 510 user s manual ...
Страница 73: ...5 12 Serial ports PC 510 user s manual ...
Страница 77: ...6 4 LPT1 parallel port PC 510 user s manual ...
Страница 83: ...7 6 Console devices PC 510 user s manual ...
Страница 119: ...13 8 CRTs and flat panels PC 510 user s manual ...
Страница 123: ...14 4 GPS interface PC 510 user s manual ...
Страница 125: ...15 2 PC 104 expansion PC 510 user s manual ...
Страница 127: ...Overview of Section 3 PC 510 user s manual ...
Страница 131: ...16 4 Watchdog timer and hardware reset PC 510 user s manual ...
Страница 147: ...18 8 Transferring files remote disks PC 510 user s manual ...
Страница 177: ...21 22 CPU power management PC 510 user s manual ...
Страница 181: ...22 4 Troubleshooting PC 510 user s manual ...
Страница 183: ...Overview of Section 4 PC 510 user s manual ...
Страница 203: ...A 20 Technical data PC 510 user s manual ...
Страница 231: ...B 28 Software utilities PC 510 user s manual ...