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Can I wake up the part on CAN bus activity?

Question asked by lpcware Employee on Sep 2, 2016

This depends on the microcontroller used and what wakeup sources it allows.
LPC1800/4300: the event router allows wakeup via CAN from sleep mode. It allows wakeup from other power modes through the wakeup pins therefore an idea is to connect CAN_RX to a wakeup pin.
LPC11C00: the WAKEUP pin could be connected to CAN_RX. Note that the part can only go into deep sleep mode if there is no activity on the CAN bus first (which would mean the WAKEUP pin is high).

 

 

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