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

A method of operating a system comprising a commander device and a set of responder devices coupled via a bus, the method comprising:

• transmitting, by the commander device, a wake-up pattern over the bus to wake up the responder devices, wherein the wake-up pattern comprises a message with an identifier based on wake-up pattern requirements of the ISO 11898-2 standard;
• receiving, by the responder devices, the wake-up pattern from the commander device;
• waking up, by the responder devices, in response to receiving the wake-up pattern;
• and
• filtering the wake-up pattern using a filter time corresponding to a communication bit rate of the bus.

A method of operating a system comprising a commander device and a set of responder devices coupled via a bus, the method comprising:

• arranging the responder devices in chains, each chain comprising multiple responder devices;
• transmitting, by the commander device, an initialization frame over the bus, the initialization frame comprising chain identification data and position data for responder devices within respective chains;
• receiving, by the responder devices, the initialization frame;
• determining, by each responder device based on the initialization frame, a chain membership and a position within the chain;
• transmitting, by the commander device, broadcast messages comprising chain identification numbers in an identifier field of the broadcast messages;
• and
• reading, by responder devices belonging to an addressed chain, respective data portions from the broadcast messages based on their determined positions within the chain.