What is the purpose of "t ScanReserved"?

[Aleksei Vegner]

Hi everyone!

I'm wondering about why SoftDevice stays idle (in terms of radio operation) so "long" ("t ScanReserved" = 760 us) after channel changes during scanning? Despite that radio can switch for time of 40-120 us from one channel to the other. Maybe stack needs more than that for internal reconfiguration?

Thanks in advance!

[Petter Myhre]

Yes, it needs more time, tScanReserved is the worst case time the stack needs in addition to the actual scan window.

In this time scheduling of timing events, processing of potential radio traffic, switching/reconfiguring of radio hardware, and so on, is done.