Fake Parallel Printer – A Parallel Port Traffic Capturing Tool

Re:Fake Parallel Printer – A Parallel Port Traffic Capturing... by ComputerGuru on Friday January 27, 2023 @11:30AM (#34547887)

I loved the writeup and all the details - mad props for making this so simple and to the point.

However, I must say that I actually prefer the pictures of the scope to the "raw graphs" you posted. Maybe it's just because I'm familiar with them but I find the oscilloscope pics to be much more legible and more immediately understandable than the b&w images you posted, possibly because their lines aren't as bold and clear.

I'd just use something like the Lens app by Microsoft on my phone to take the picture and automatically deskew, rotate, and crop.

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Re:Fake Parallel Printer – A Parallel Port Traffic Capturing... by tverbeure on Friday January 27, 2023 @12:41PM (#34549103)

Thanks!

Yeah, for the TDS 420A, a real picture will show the background (grid etc) with lower intensity than the actual signal while the bitmap is just black and white. So you definitely have a point there. A TDS 784D with a color display has a multi-color bitmap and doesn't have that problem.

But for the spectrum analyzer, I definitely prefer the bitmap.

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Re:Fake Parallel Printer – A Parallel Port Traffic Capturing... by myself248 on Friday January 27, 2023 @03:52PM (#34551700)

Can you configure the scope for plotter output? That may choose different pens for the grid versus the trace.

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Re:Fake Parallel Printer – A Parallel Port Traffic Capturing... by tverbeure on Friday January 27, 2023 @06:44PM (#34553354)

I haven't tried HPGL output, but when you select "Enscapulate Postscript Color", it still outputs mono. The same setting on a 784D creates a color output.

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