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Original question:

CC3220: CC3220 Wake Up Time From Sleep Mode

CC3220: CC3220 Wake Up Time From HTTP/HTTPS WoL (Wake on LAN).

Jesse Wang
Intellectual 2285 points

Part Number: CC3220

Hi Expert,

 Does TI have estimation of wake up time from http service by WoL (Wake on LAN)?

 I see one E2E question talking about wake up time from sleep, but its first link is corrupted in the reply.

 *** CC3220: CC3220 Wake Up Time From Sleep Mode, https://e2e.ti.com/support/wireless-connectivity/wifi/f/968/t/694362

Sincerely.

  • 0
    TI__Mastermind 30780 points
    Hi Jesse,

    I assume you are looking for the amount of time it takes for the host to be woken up by the network processor when it is sleeping while blocked on some sort of socket activity (like RX of HTTP/HTTPS data). In this case, the system will be idle connected to the AP and waiting for an indication that there is traffic buffered for it before waking up to receive. You can estimate the overall time it takes for the system to get the packet and wake the host as the sleep interval of the network processor. For most cases, this will be the DTIM interval or the LSI setting.

    This time will dominate over the time it takes for the network processor to generate the interrupt to the host and the host to come out of a low-power mode. In the case described above, the MCU will be in LPDS mode. Waking the MCU in the CC3220 from LPDS by the network processor is comparable to waking it from a GPIO. As mentioned in Table 6-2 of the datasheet, this time is less than 3 ms.

    http://www.ti.com/lit/cc3220


    Best,
    Ben M