sync Layer
The <sync> layer represents synchronization bytes, usually (but not always) present at the beginning of the frame.
<?xml version="1.0" encoding="UTF-8"?>
<schema endian="big" ...>
<frame name="ProtocolFrame">
<sync name="Sync">
<int name="SyncField" type="uint16" defaultValue="0xabcd">
<validValue value="0xabcd" />
<failOnInvalid value="true" />
</int>
</sync>
<size name="Size">
<int name="SizeField" type="uint16" />
</size>
<id name="Id">
<int name="IdField" type="uint8" />
</id>
<payload name="Data" />
</frame>
</schema>
The example below implements SYNC (2 bytes) | ID (2 bytes) | SIZE (2 bytes) | PAYLOAD
framing where SYNC
must be 0xab 0xcd
bytes. Note, that read of the SyncField
will fail in case its read value is not 0xabcd
.
The <sync> layer doesn't have any extra properties in addition to common ones.
Last updated
Was this helpful?