sub-millisecond time sync

flybir — Wed, 25 Mar 2026 00:50:33 GMT

I'd like to get to sub-millisecond accuracy in order to do time sync over a BLE connection or WIFI connection.

Is it possible to achieve this with the rw612？

Thanks for any help！

Re: sub-millisecond time sync

Christine_Li — Wed, 25 Mar 2026 05:59:47 GMT

As I know, for some Wi-Fi chipsets which support FTM/RTT feature can do time sync.

But unfortunately, our RW612 doesn't support FTM and RTT feature. So I think WiFi side, it could not achieve sub-millisecond time synchronization.

In BLE side, it also doesn't provide any time-sync or timestamping hardware.

So， I worry it could not achieve this with RW612.

Sorry for the inconvenience.

Please let me know if you have any other concerns on this case.

Best regards,

Christine.