schema.xml

<?xml version="1.0" encoding="UTF-8"?>
<schema name="cc_demo3" endian="big" version="5" dslVersion="7">
    <fields>
        <enum name="MsgId" type="uint8" semanticType="messageId" >
            <validValue name="Connect" val="1" />
            <validValue name="Msg1" val="2" />
        </enum>
    </fields>

    <interface name="Message">
        <int name="Version" type="uint8" semanticType="version" />
    </interface>
    
    <frame name="Frame">
        <sync name="Sync">
            <int name="Sync" type="uint16" defaultValidValue="0xabcd" failOnInvalid="true"/>
        </sync>
        <size name="Size">
            <int name="Size" type="uint16" serOffset="2" displayOffset="2"/>
        </size>
        <id name="Id" field="MsgId" />
        <value name="Version" interfaces="Message" interfaceFieldName="Version" pseudo="true">
            <int name="Version" type="uint8" semanticType="version"/>
        </value>
        <payload name="Data" />
        <checksum name="Checksum" alg="crc-ccitt" from="Size">
            <int name="Checksum" type="uint16" />
        </checksum>
    </frame>       

    <message name="Connect" id="MsgId.Connect" sender="client">
        <int name="Version" type="uint8" semanticType="version"/>
    </message>
    
    <message name="Msg1" id="MsgId.Msg1" sender="client">
        <int name="F1" type="uint8" defaultValue="1" />
        <int name="F2" type="uint8" defaultValue="2" deprecated="2" removed="true" />
        <int name="F3" type="uint8" defaultValue="3" sinceVersion="3" deprecated="4" />
        <int name="F4" type="uint8" defaultValue="4" sinceVersion="3" deprecated="5" removed="true" />
    </message>
</schema>