Compaq uSign 100, uSign 200 uSignUserManual 7.0 uSign commands description, Command protocol

uSignUserManual

7.0uSign commands description

(Version: 0.02 Date: 2007-03-19) Note: digits are given in little-endian format.

7.1Command protocol:

Host to device: STX LenL LenH CommandData Lrc1 Lrc2 ETX STX: 0x02. 1 byte.

LenL+LenH: sizeof(CommandData). 2 bytes.

CommandData: main command string. Several bytes needed.

Lrc1: Exclusive or of CommandData. 1 byte.

Lrc2: Sum of CommandData. 1 byte.

ETX: 0x03. 1 byte.

Device to Host: STX LenL LenH ResponseData Lrc1 Lrc2 ETX STX: 0x02. 1 byte.

LenL+LenH: sizeof(ResponseData). 2 bytes.

ResponseData: main response string. Several bytes needed.

Lrc1: Exclusive or of ResponseData. 1 byte.

Lrc2: Sum of ResponseData. 1 byte.

ETX: 0x03. 1 byte

7.2System Commands

7.2.1Get firmware version

Command string: 78 01

Response string: IDTECH-USIGN V0.02

7.2.2Get serial number

Command string: 78 02

Response string: Serial number

7.2.3Get clip area

Command string: 7A 04 01

Response string: Clip area data (8 bytes)

Clip area is a rectangle coded as: left (2 bytes) + top (2 bytes) + right (2 bytes) + bottom (2 bytes)

7.2.4Set clip area

Command string: 7A 04 02 Clip area data( 8 bytes)

Response string: 0xE0

7.2.5Clear clip area

Command string: 7A 08

Response string: 0xE0

Copyright © 2006, International Technologies & Systems Corp. All rights reserved.

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