Thingmagic Autonomous Configuration Tool Manuel d'utilisateur télécharger pdf (Page 27)

Processing Data from the Reader

Autonomous Configuration Tool v1.0 User Guide 27

CCITT CRC-16 Calculation

The same CRC calculation is performed on all messages from the reader. The CRC is

calculated on the Data Length, Command, Status Word, and Data bytes. The header

(SOH, 0xFF) is not included in the CRC.

A sample implementation of the CCITT CRC-16 algorithm can be found in the

autonomous reading zip package (autoread-1.25.x.x.zip) in the corresponding

subdirectory for Java, C# and C

C#: ReceiveAutonomousReading.cs | CalcReturnCRC()

Java: SerialTransport.java | calcCrc()

C: receiveAutonomousReading.c | tm_crc()

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Thingmagic Autonomous Configuration Tool Manuel d'utilisateur Page 27