Timing Diagram Software

I'm starting up a new set of ucontroller projects and I need to draw timing diagrams. I searched and found a couple programs, but all the results are either 30-day trials, or programs with way too many other features in it (ex: Full-blown IDEs that happen to include diagramming).

Basically, I'm just looking for a prog where I can quickly draw 3-state diagrams like you'd find in any datasheet. Any recommendations? This is for XP.

I have never used it, but it looks free.
**broken link removed**


This one looks kinda cheezy from the screenshot.
SourceForge.net: TimingEditor

Okay, I have the TimeGen 3.0 trial. It pretty much delivers what it promises: you can draw high-low levels, tri-state, invalid states, and time breaks; and it draws repetitive clock signal automatically. After that you can export the image as either .bmp, .emf, or straight to the clipboard. The trial is limited to showing 5 or fewer signals at once, and any drawing with more than 2 signals has a watermark printed over it. The only major snag is it created some kind of recursive error on my first try here and crashed.

Sorry about the crash, like I said, never tried out the software. The link I gave you was for TG 2.4 not 3, and claims to be free on the web site.

Well, I mean as far as doing basics it works just fine and I haven't seen another crash since my first run. Compared to hand-drawing or buying a full-blown simulator, this is really the kind of thing I'm looking for.

So out of curiosity, I downloaded the tool and it was ver 3.0 And it is a demo version. Pretty misleading on the web site. Sorry bout that. Maybe the one on sourceforge will suffice. Again, never tried it.