System and method for communication between a commander device and a responder device

A device, comprising:

• a commander device comprising:
• a protocol controller circuit configured to encode messages in a CAN FD format using a serial peripheral interface (SPI) protocol, and
• a CAN FD transceiver circuit configured to transmit the messages via a bus, wherein
• the messages are addressed to responder devices in a set of responder devices, and
• the messages comprise identifiers identifying respective ones of the responder devices of the set of responder devices to which the messages are addressed, wherein each message comprises a CRC field and a CRC delimiter following the CRC field;
• and
• the set of responder devices comprising respective communication and protocol controller circuits configured to:
• receive over the bus the messages transmitted from the commander device, and
• verify a correctness of the CRC field and a presence of the CRC delimiter.

A responder device for inclusion in a set of responder devices coupled to a commander device via a bus, the responder device comprising:

• a communication and protocol controller circuit configured to:
• receive, over the bus, respective messages conveying identifiers identifying the responder device as the one of the responder devices to which the respective messages are addressed, wherein the messages are encoded in a CAN FD format using a serial peripheral interface (SPI) protocol, and each message comprises a CRC field and a CRC delimiter following the CRC field;
• and
• verify a correctness of the CRC field and a presence of the CRC delimiter.