Prioritized serial communication
AssigneeVacon Oy
InventorPetri Ylirinne
Life of this patent
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Abstract
An electric system for transmitting serial communication messages with different priorities over a communication link. The data to be transmitted is arranged in serial communication messages comprising a start of packet (SOP) symbol and data symbols. The ongoing transmission of a first message is interrupted if a SOP symbol of a second message is sent before the first message has been completed. Transmission of the first message is continued only after the second message has been sent.
Claims19
A method for transmitting serial communication messages with different priorities over a communication link, comprising:
- enabling each message to comprise a start of packet (SOP) symbol and a plurality of data symbols (DATA),
- interrupting ongoing transmission of a first message if a SOP symbol of a second message is sent before the first message has been completed, and
- continuing the transmission of the first message only after the second message has been transmitted.
An apparatus for transmitting serial communication messages with different priorities over a communication link, the apparatus comprising a first control module configured to:
- encode the serial communication messages such that each message comprises a start of packet (SOP) symbol and a plurality of data symbols (DATA),
- interrupt ongoing transmission of a first message if a SOP symbol of a second message is sent before the first message has been completed, and
- continue the transmission of the first message only after the second message has been transmitted.
A computer program product comprising a non-transitory computer readable medium encoded with a computer program configured to implement the method of:
- encoding the serial communication messages such that each message comprises a start of packet (SOP) symbol and a plurality of data symbols (DATA),
- interrupting ongoing transmission of a first message if a SOP symbol of a second message is sent before the first message has been completed, and
- continuing the transmission of the first message only after the second message has been transmitted.
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Dependencies are inferred from the claim text.