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CCS/TMS320F280049C: tms320f280049c

sagar yadav1
Intellectual 470 points
Part Number: TMS320F280049C


Tool/software: Code Composer Studio

Hi,

 I am using TMS320f280049c for my application.

I want to know regarding sleep /wake up mode in controller.

How to enter in sleep mode . What is activated and deactivated (CLOCK,peripherals) in sleep mode.

What are the wake up inputs of controller

  • 0
    Intellectual 470 points

    Hi,

     Also I want to know what is difference between low power mode and sleep mode.

    what is current consumption in both mode (IDLE MODE).

    CAN MOdule is activeted in idle mode?

    CAN I Wake up from IDLE mode from CAN Receive massage?

    Regards,

    Sagar

  • 0 in reply to sagar yadav1
    TI__Guru 60865 points

    Hi Sagar,

    The supported LPMs are IDLE and HALT.

    See the "5.9.8 Low-Power Modes" section of the datasheet and "3.10 Low Power Modes" in the TRM.  

    In the TRM, the IDLE section says "Any enabled interrupt will wake the CPU up from IDLE mode" so you could wake up from a CAN RX interrupt.  HALT, on the other hand, gates the peripheral clocks, so you wouldn't be able to wake up from this LPM via the CAN. 

  • 0 in reply to Devin Cottier
    Intellectual 470 points

    Hi,

     Thank you for reply.

    I am not using CAN in interrupt it is in polling at 1msec.

    Can I wake up at CAN RX massage?(For Polling)

    Or Can I configure CAN RX Interrupt for wake up only.

    I mean CAN RX configure as interrupt  for wake up only.

    once wake up it will run in polling....

    Thank you and Regards,

    Sagar

  • 0 in reply to sagar yadav1
    TI__Guru 60865 points

    Hi Sagar,

    It won't wake up without an ISR; the CPU will be asleep and can't poll. 

    You'll either need to switch to an ISR based scheme or at least configure an RX ISR before entering the LPM.