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Original question:

Linux/DRA756: Difference between DRA75X J6 EVM Rev D and Rev H

Linux/PROCESSOR-SDK-DRA7X: DRA75X J6 EVM Rev H Wakeup 0 implementation.

Nilesh Mahadik
Prodigy 10 points
Part Number: PROCESSOR-SDK-DRA7X


Tool/software: Linux

How to implement Wakeup on CAN message on TI J6 EVM.

Guidelines to implement RTC mode on TI J6.

How DCAN1_RX (AD17) configure to CAN rx and Wakeup 0 source.

  • 0
    TI__Expert 8250 points

    Hi

    Assume that your questions are more at system level (and not necessarily Linux related)

    Would you expect the system to come out of Low Power state(and also elaborate on this) - are both RTC, CAN your intended wakeup sources

  • 0 in reply to Srirama Govindarajan
    TI__Genius 17215 points

    We dont support RTC mode on J6. So the way we see CAN wakeup is as below - 

    1. Device is OFF, PMIC has gated the power

     WUP on bus -> CAN TRCV detects it and uses inhibit/wakup pins to signal to PMIC which boot the device. In this mode, J6 does cold boot and responds to CAN message. We can discuss on CAN response time based on your system needs.

    2. Device is in standby, which means that the cores are in WFE/OFF. 

    We may not necessarily put the CAN TRCV in sleep mode. In case there is any activity on bus, the message comes to message RAM and an interrupt from CAN controller wakes up the core. This mode may not be as power friendly as previous.

    regards

    yashwant 

  • 0 in reply to Yashwant Dutt
    TI__Expert 8250 points
    Hi
    let us know if you have any further clarifications. Marking the thread closed for now