Sniffer Data Length Extension Support?

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Sniffer Data Length Extension Support?

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philbeeson
Contributor III

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 

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estephania_mart
NXP TechSupport
NXP TechSupport

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.

MTU3.png

Best Regards, 

Estephania 

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estephania_mart
NXP TechSupport
NXP TechSupport

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.

MTU3.png

Best Regards, 

Estephania 

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philbeeson
Contributor III

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.

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estephania_mart
NXP TechSupport
NXP TechSupport

Hello,

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

Regards, 

Estephania 

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