What tools do folks use for protocol decoding?

[Lathe26]

I'm curious what tools folks use for offline protocol decoding after they have captured data from an oscilloscope or a logic analyzer?

For example, I have a Rigol oscilloscope that can save capture data to a file.  While it natively supports a handful of protocol decodings, there are many it doesn't and does not appear to allow end-users to write their own.  I am looking at loading the data into Sigrok/Pulseview since it has many protocol decoders, they are written in Python, and it's open source.  However, there might be alternative tools out there.

[RoGeorge]

The best I know is sigrok.  Sometimes wireshark, too.

I remember from some years ago sigrok/Pulseview was starting to support Rigol oscilloscopes.  Should be able to work using oscilloscope's SCPI, so without exporting to a file, but I didn't check how good the support is in practice.
https://sigrok.org/wiki/Supported_hardware

[Smokey]

I don't do a lot of protocol decoding, but when I do.. I have a totally official, definitely not Chinese knockoff I bought for $12 from eBay, Saleae Logic.  Their software is pretty good.

[Psi]

I just use my Saleae (legit) to save the capture and export the decoded data into excel.

I believe you can write your own decoders for Saleae LA's as plugins, but its not something i've ever looked into, so i'm not sure.

[RoGeorge]

https://www.saleae.com/downloads/
Looks like a sigrok/pulseview fork. 

[Gyro]

https://www.saleae.com/downloads/
Looks like a sigrok/pulseview fork. 

No, Saleae is a commercial software development that (I think) predates sigrok. The first gen Saleaes were just clones of the Cypress Ez-USB microcontroller H/W reference design (as were the first USBEE), hence the number of Chinese compatible clones that work illegally / immorally with the S/W.

Sigrok is an open source development. It just happens to have support for Saleae LAs, just as it does many other manufacturers' devices. 

[Kean]

Same as Psi, I've typically captured the data via my Saleae Logic Pro 8 and exported as CSV.  I then review the data in Excel or with some code.  I am yet to try the custom decoders.

Some years before Saleae started supporting plugins, I wrote C# code to analyse and compare exported digital and analog samples.  That was some multi-channel synchronised PWM and PDM signals (not audio) that I needed to carefully replicate, and there was enough different sequences that there was sufficient value in automating the data analysis, visualisation, and code generation.

I don't recall seeing any protocol decoders at the time for PDM.  Sigrok had PWM decode, and it appears someone wrote a Sigrok PDM decoder a couple of years later.  A search on Github just now shows that someone from Adafruit was working on a Saleae PDM decoder (old SDK) around 6 months after I did the first work on that project.  I reused my code at various times over the course of a few years.

[RAPo]

Is it really a special protocol? I have a Zero-plus LAP-c6000 that has a whole range of built-in protocols.
And a DSLogic U3Pro16, their software also has a whole range of builtin decoders.

[RoGeorge]

DSlogic is using DSview, which is a fork of sigrok/pulseview, so all the protocol decoders from sigrok will be available + the ability to write your own decoders.

[RAPo]

There is quite a history behind the word "fork" 🤔. I'm just answering the question the OP on what I use.

DSlogic is using DSview, which is a fork of sigrok/pulseview, so all the protocol decoders from sigrok will be available + the ability to write your own decoders.

[Lathe26]

Thanks for the all suggestions.