Wireless MCUのトピックRe: Sniffer Data Length Extension Support?

Sniffer Data Length Extension Support?

philbeeson — Wed, 21 Jun 2017 19:21:40 GMT

Does anyone know if the USB-KW41Z + Kinetis Protocol Analyzer Adapter is capable of sniffing BLE 4.2 packets that use data length extension, i.e. with MTU > 27 ?

I'm struggling to find any documentation to indicate if it's supported by the sniffer + adapter, I am already aware that the MKW41Z BLE Software has supported Data Length Extension since v1.2.0, but I don't think that guarantees that the sniffer firmware and adapter do.

Thanks,

Phil

Re: Sniffer Data Length Extension Support?

stephanie_m — Tue, 18 Jul 2017 23:27:26 GMT

Hello,

Sorry for the late response, indeed the sniffer firmware is capable of support the length of BLE 4.2. When I start sniffing an application after the connection has been made there is a request and response where they stablish their MTU size.

Best Regards,

Estephania

Re: Sniffer Data Length Extension Support?

philbeeson — Wed, 19 Jul 2017 08:56:46 GMT

Thanks Estephania,

That's encouraging, though at the moment I'm not even able to sniff BLE 4.1 connections with the dongle, probably something I'm doing wrong (see my other question for details).

It would be great if I could get this working the way you have shown!

Regards,

Phil.

Re: Sniffer Data Length Extension Support?

stephanie_m — Wed, 26 Jul 2017 15:32:03 GMT

Hello,

Let me see the other question to see if I can help out.

Regards,

Estephania