There are a couple of warnings in the power save functions of wiced ide
An accurate 32kHz clock reference must be connected to the WLAN sleep clock input pin while the WLAN chip is in powersave mode! Failure to meet this requirement will result in poor WLAN performance
If the MCU drives the sleep clock input pin of the WLAN chip, ensure the 32kHz clock output from the MCU is maintained while the MCU is in powersave mode.
In redbear duo, can we safely use power save functions?