On i.MX 8M Plus, can the FlexCAN be alive while the CPU cores are suspended? With
hardware filters we can then have the FlexCAN interrupt the CPU on
specific frames and deliver them. I mean have the CAN controller and CAN
tranceiver fully running at some power consumption cost?
one can try to leave FlexCAN running in low power mode configuring its CCM_CCGR53,54 registers,
clock gate control is described in sect. 188.8.131.52 CCM Clock Gating Register (CCM_CCGRn) i.MX 8M Plus Applications Processor Reference Manual