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SLN-VIZNAS-IOT User Guide, Rev. 1.1, 10/2020
NXP Semiconductors
Figure 22: "Recognition Timeout" Message
During hibernation, nearly everything but a select few peripherals is disabled in order to
conserve power. As a result, the video output from the kit as well as the shell interface
will not be active and will not be accessible until the board has woken up again.
NOTE: When low power mode is activated and the board enters sleep/hibernation, after the SLN-
VIZNAS-IOT wakes up,
your computer’s camera app (Windows Camera app, Cheese, etc.) may need
to be restarted before you can begin seeing camera output once again. This may also apply to your
serial terminal emulator of choice as well (PuTTY, Tera Term, etc.)
Because only select peripherals are enabled during sleep mode, the SLN-VIZNAS-IOT
will only wake up in response to a specific trigger(s), which by default, is the SW3 push
button shown in the following figure:
Figure 23: Hibernation Wake-up Trigger (SW3)
Upon detecting the trigger, the SLN-VIZNAS-IOT will automatically wake up and begin
running as normal.
