Start/stop sniffing by external event

[ekrashtan]

I have Wireshark setup with old PCA10028 board connected as a sniffer, FW sniffer_pca10028_51296aa.hex
Now I'm working with NRF52 family and sometimes I need to observe some long periods of time. I'd like to request a new feature for sniffer.
Is it possible to use any external pin on the sniffer board as start/stop input?
I.e. I can generate pin change events on my equipment, and want to see in Wireshark log only packets when GPIO in a high state.
Or maybe you can recommend any plugin for Wireshark to run and pause sniffing externally?

Thanks!

[David Edwin]

I would suggest upgrading to a nRF52 based DK board as our tests show that the nRF51 based DKs perform worse when we need to sniff large number of packets.

We have attempted to improve stability of the UART link so we can observe for "long" periods of time.

1. However what do you mean by "long" ?

2. You can also use the python based Sniffer API instead of wireshark so large number of packets can be received and analyzed.
Wireshark will perform badly when you hit more than 1 million packets in the capture.

[ekrashtan]

Wireshark will perform badly when you hit more than 1 million packets in the capture.

Yes, that's why I requested such feature.

1. One-two days, but only when equipment in an active state, It means total 10-20 minutes in short periods (few seconds)

2. Yes, I thought about this possibility, but I need to catch only one wrong sequence and still have no idea how to filter the necessary period without an external toggle.

[David Edwin]

We can consider the feature but, our backlog for the next few releases are already filled. Why don't you try the Sniffer API with the python and see if that works for you.

The latest beta(pre-releasee) with stability fixes is posted on this case.