packet-reader.adoc

PacketReaderFSM State Chart

PacketReaderFSM State Map

Start	Event[Guard]	Target	Action
START	CTRL [{it == CharacterConstants.SOH}]	RCVPCKT
RCVPCKT	CTRL [{it == CharacterConstants.STX}]	RCVDATA	{ addField() }
RCVPCKT	BYTE	RCVCHK	{ addChecksum(it) }
RCVDATA	BYTE	RCVDATA	{ addByte(it) }
RCVDATA	CTRL [{it == CharacterConstants.ETX}]	RCVPCKT	{ endField() }
RCVDATA	ESC	RCVESC
RCVESC	ESC	RCVDATA	{ addByte(CharacterConstants.ESC) }
RCVESC	CTRL	RCVDATA	{ addByte(it) }
RCVCHK	BYTE	RCVCHK	{ addChecksum(it) }
RCVCHK	ESC	RCVCHKESC
RCVCHK	CTRL [{it == CharacterConstants.EOT}]	CHKSUM	{ checksum() }
CHKSUM	<<automatic>> [{!checksumValid}]	[*]	{ sendNACK() }
CHKSUM	<<automatic>> [{checksumValid}]	[*]	{ sendACK() }
RCVCHKESC	ESC	RCVCHK	{ addChecksum(CharacterConstants.ESC) }
RCVCHKESC	CTRL	RCVCHK	{byte-> require(byte != null) addChecksum(byte) }