User manual

GHI Electronics,LLC USBwiz User Manual
USBwiz Command Set
all of them must be sent; if an error occurs while writing, USBwiz still expects all bytes
before producing the final error code.
If any data is written to a file, the file must be flushed (FF command) or closed (CF
command) when done. Otherwise, the file and/or the file system might get corrupted.
Format WF<SP>n>ssssssss<CR>
!00<CR>
User sends data
$aaaaaaaa<CR>
!00<CR>
n File Handle
ssssssss HEX DWORD data size to be
written
aaaaaaaa HEX DWORD actual written
size
Example WF<SP>1>10<CR>
!00<CR>
1234567890abcdef
$00000010<CR>
!00<CR>
Write 16 bytes to the file opened with
handle 1
SH - Shadow Write to multiple Files
This command is similar to WF command except that it writes the same data into two or
three files simultaneously.
Format 1 SH<SP>n<SP>m>ssssssss<CR>
!00<CR>
User sends data
$aaaaaaa1 !00<CR>
$aaaaaaa2 !00<CR>
N First File Handle
m Second File Handle
ssssssss HEX DWORD data
size to be written
aaaaaaaa HEX DWORD actual
written data size to the first and
second handles
Format 2 SH<SP>n<SP>m<SP>o>ssssssss<CR>
!00<CR>
User sends data
$aaaaaaa1 !00<CR>
$aaaaaaa2 !00<CR>
$aaaaaaa3 !00<CR>
Same as the previous Format
except for having a third
shadow o Which is a third file
handle
Example SH<SP>1<SP>0<SP>3>10<CR>
!00<CR>
1234567890abcdef
$00000010 !00<CR>
$00000010 !00<CR>
$00000010 !00<CR>
Write 16 bytes to the files
opened with handles 1, 0, 3
USBwiz accepted the command
16 bytes of data to go into the
file
USBwiz was able to write 16
bytes to the three files
successfully with no errors
occurrence.
RW - Read from File, Write to other file
This command is very powerful and fast! If we have two files, one is opened for Read
Rev.2.27 Page 44 of 64 www.ghielectronics.com