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LAUNCHXL-CC1312R1: Does the CM3 goes to sleep after the SCE alerts the CM3?

Keshav Aggarwal
Expert 1730 points
Part Number: LAUNCHXL-CC1312R1

Hi,

I'm running EasyLink rfWsnNode example. I want to know, Does the CM3 goes to sleep after the SCE alerts the CM3 via taskAlertCallback & completes the job.

Basically In this example, Node is sending adc reading to Concentrator periodically. I want to know after Node Device is done with transmitting, will it go into sleep?

Regards,

Keshav

  • 0
    TI__Guru* 79441 points

    Yes. Please take a look at the readme file for the application. There it is explained how it is the SCE that wakes up the NodeTask. The NodeTask handles the radio protocol, and makes sure that the device goes back to sleep after transmitting (three retries, before it gives up).

    Siri

  • 0 in reply to Siri
    Expert 1730 points

    Hi Siri,

    Actually I have already looked into readme file and in the code as well. But I can't see any API that is being called to put the CM3 into Sleep mode.

    Then how CM3 would go to sleep?

    Keshav

  • 0 in reply to Keshav Aggarwal
    TI__Guru* 79441 points

    In the readme file it says:

    "On initialization the CM3 application sets the minimum report interval and the minimum change value which is used by the SCE task to wake up the CM3. The ADC task on the SCE checks the ADC value once per second. If the ADC value has changed by the minimum change amount since the last time it notified the CM3, it wakes it up again."

    It states that the SCE is used to wake up the CM3, meaning that the CM3 is in sleep (standby).

    You do not need to tell the device to enter sleep as this will be taken care of by the Power manager. Please see the following on the SimpleLink SDK Power Management:

    Siri

  • 0 in reply to Siri
    Expert 1730 points

    Thanks Siri! I got it.

    BR,

    Keshav