Saleae Logic Probe on sale at microchip.com

[HenrikOlsson]

I'd certainly buy a scope over/before any logic analyzer but IMHO once you have verified signal integrety with the scope, moving to a logic analyzer with a nice and quick UI like LOGIC is WAY more productive than trying to do the same thing on a MSO if you're trying to actually analyze a communication protocol etc.

A year or two ago I worked on reverse engineering the protocol used between the HP/Agilent 34970A DAQ and it's various plugin modules. Don't think I could've done it without the LOGIC even though I have a mixed signal oscilloscope.

Then again, the original LOGIC is quite limited when it comes to triggering and I would've loved to be able to dedicate on of its inputs as an external trigger input but nope. Don't know about the newer ones.