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CC3235S: Keep NTP synced time during sleep

Tomas Malmelöv
Prodigy 175 points
Part Number: CC3235S


Hi,

Running a cc3235S and setting time on device using Seconds_set() after a successful sntp sync. Is it possible to keep the clock going during a hibernate?

Regards Tomas

  • 0
    TI__Guru 64555 points

    Hi,

    Seconds_set() uses the RTC clock that is maintained during LPDS (deep sleep) but hibernate places the device in few microseconds which is almost complete shutdown. RTC should still run but mainly to enable faster initialization than shutdown. Since the application code should be loaded to SRAM again, you should also set the clock again as part of the application code.

    Regards,

    Shlomi