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CC2640R2F: Question about Advisory 04

Choongbeom You
Expert 1670 points
Part Number: CC2640R2F


Tool/software:

Hello,

Our device works with the following scenario. Can it still encounter the issue as errata advisory 04?

- The sensor controller do ADC and wakeup main core with fwGenAlertInterrupt. The main core do something briefly.

- It repeats every 10 seconds expecting to be in standby mode most of the time.

If so, We're not sure if  we can calculate the appropriate maxStandbyDuration and vddrRechargeMargin values as the workaround.

Is there a more general and rough way?

(using SDK 5.30.00.03 and POWER_SAVING)

Thanks,

Calvin

  • 0
    TI__Expert 5520 points

    Hi ! 

    The errata advisory 04 happens in the specific scenario where the temperature increases between the time where the CPU enters standby and the sensor controller wakes up and re-enters standby. However, you mention that your sensor controller wakes up the CPU when the sensor controller wakes up, in order to do some light computations. The temperature will then be re-evaluated when the CPU will go back to standby, and the errata should not concern you.

    Kind regards,
    Maxence