Cino FA470 User Manual Page 104

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Command Descriptions
2-89
Set USB COM
(WF)
Descriptions
Change the desired one or more parameters of the USB COM Interface settings
Available for F & L series
Packet Format
Prefix Opcode Status Length
Parameter(s) LRC Suffix
7Eh
82h 00h 03h
00h Variable
See Below Variable
7Eh
1 Byte 3 Bytes 1 Byte 2 Bytes
Variable 1 Byte 1 Byte
Parameter(s)
First Parameter ………
Last Parameter
PID Size Options
………
PID Size Options
2 Bytes
2 Bytes
Variable
………
2 Bytes
2 Bytes
Variable
See Next Page
. Host Requirements
If the device successfully received the above command issued by the host, a “Device ACK” will send to
the host right after the device performed the action. Otherwise, a Device NAK will be sent to host to
issue a command error. However, if the host can not receive any response from the device within the
user preset time-out duration, please resend the above command.
. Parameter(s) Field
Set USB COM can change multiple parameters at one time, so it takes compound parameters.
. Length
Total size (bytes) of the Parameter(s) field
. LRC
”Opcode” XOR “Status” XOR “Length” XOR “Parameter(s)”
. Size
Total size (bytes) of the Options field
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