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CC2640R2F: Sensor Controller - timer0Wait

John Whitehouse
Intellectual 620 points

Part Number: CC2640R2F

Hello,

I'm reviewing a Sensor Controller application that makes use of Timer 0, including the procedure timer0Wait() to sync to timer ticks.

When timer0Wait is running, is the Sensor Controller still in 'active' mode or does it switch into 'standby' mode?

As context, I'm trying to work out if I need to tackle advisory 04 from the CC2640R2F errata in the design of the Cortex-M3 application. As far as I understand, if the Sensor Controller does not enter standby mode then the errata advisory doesn't apply.

Many thanks for your assistance.

John

  • 0
    TI__Guru 58425 points

    Hi John,

    Calling the wait API will cause the Sensor Controller to shut down clocks and wait until the event finishes. It would however keep the AUX domain alive. In this scenario I think you need to consider this "IDLE" state as a possible Sensor Controller wake up.

    If you intend to use the sensor controller while the CM3 could be in standby, it might be of interest to consider the advisory anyway.