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URGENT: TMS570 Dual Core

Charles Pham
Prodigy 20 points

Hi,

Is there a possibility of turning off one of the cores in the TMS570? The current draw while idling, non-sleep, ~390mA for both (or one, not sure) cores is a bit high.

Take care,

Charles

  • 0
    TI__Mastermind 22715 points

    Charles,

    The two cores are running in lock step. It is not possible to turn one off.

    Thanks and regards,

    Zhaohong

  • 0
    TI__Mastermind 23000 points

    As a further comment to Zhaohong's response, the additional CPU in lockstep is not a primary draw of leakage current on the product when the sum of all digital logic is considered.  Even if the option were present, disabling the checker CPU would not make a large difference in worst case device power consumption.  Consider utilizing the hardware power domains to disable unused regions of peripheral logic if static power reduction is needed.

    Regards,

    Karl