Systems and methods for implementing a time-stamped controller area network (can) bus message
AssigneeMarvell World Trade Ltd.
InventorsBiing Long Shu, Dehuan Meng, Hugh Walsh, Fei Wu
Life of this patent
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Abstract
Systems, methods, and apparatuses are provided herein for time-stamping a Controller Area Network (“CAN”) bus message. Control circuitry (e.g., of a network bridge) may receive a CAN message, and may, in response to receiving the CAN message, generate a time stamp. The control circuitry may add an entry to a lookup table stored in memory, wherein the entry correlates a CAN message Identifier (“ID”) corresponding to the CAN message with the time stamp. The control circuitry may encapsulate the CAN message and the time stamp, and may transmit the CAN message according to the time stamp.
Claims19
1-20 (canceled)
A method for a transmitting a Controller Area Network (“CAN”) message, comprising:
- receiving a CAN message at a network bridge that bridges the CAN to an Ethernet network;
- in response to receiving the CAN message at the network bridge, generating a time stamp;
- encapsulating the CAN message into an Ethernet frame containing the time stamp;
- and
- transmitting the Ethernet frame containing the time stamp and the encapsulated CAN message over the Ethernet network.
A system for transmitting a Controller Area Network (“CAN”) message, comprising:
- a network bridge that bridges the CAN to an Ethernet network, comprising:
- a memory;
- and
- control circuitry configured to:
- receive a CAN message;
- in response to receiving the CAN message at the network bridge, generate a time stamp;
- encapsulate the CAN message into an Ethernet frame containing the time stamp;
- and
- transmit the Ethernet frame containing the time stamp and the encapsulated CAN message over the Ethernet network.
Dependencies are inferred from the claim text.