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Original question:

RTOS/MSP432P401R: After entering deep sleep mode, the Seconds module of MSP432P401R SDK will be running ?

RTOS/MSP432P401R: After entering deep sleep mode, will the LFXTCLK continue to run ?

Gilbert
Expert 1105 points

Part Number: MSP432P401R

Tool/software: TI-RTOS

Hi all,

After entering deep sleep mode,
1. Will the LFXTCLK continue to run in LPM3, (deep sleep) ?
2. How to change BCLK source from REFCLK to LFXTCLK in MSP432_SDK?

Best Regards,
Gilbert

  • 0
    TI__Guru 57506 points

    (1) Yes, the LFXTCLK will continue to run in LPM3.  Please be aware of which peripherals are available, for example Timers A and 32 are not.  See TRM.

    (2) The source for BCLK (and all clocks) is defined in the power performance levels.  In the SDK you can find the associated files here: C:\ti\simplelink_msp432p4_sdk_2_20_00_12\source\ti\drivers\power

    You would need to create a customer performance level as described in the PowerMSP432.h file.  I have also included this file.  PowerMSP432.h

    Regards,

    Chris

  • 0 in reply to Chris Sterzik
    Expert 1105 points
    Hi Chris,

    Thank you for the advice. I have gotten BCLK=LFXTCLK by creating a customer performance level.

    Best Regards,
    Gilbert

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