Re: gEDA-user: Schematics for plain PC-based Digital Storage Oscilloscope

[Stefan Salewski <mail@xxxxxxxxxxxx>]

Am Sonntag, den 07.09.2008, 19:23 +0000 schrieb Kai-Martin Knaak:

> Is there anyone else involved in the project?

Currently not. Cooperation often do not work very well in open/free
hardware design. If I need help in a special area I will ask someone.
If the device should really work, maybe some people will join the
project and improve the software.

> I didn't see a LCD in the schematic. How will the traces be shown? On the 
> desktop via USB?
> 
No LCD -- totally PC or Notebook based. A cheap notebook (which is fully
sufficient) cost not much more than a medium size color display. A
device with display will need knobs too -- this is a total other thing.

> 
> Your 
> symbols seem to be larger  than mine when compared to text size.

Symbols are based on tragesym size, I used my own a4 titleblock, which
is (nearly) identical in outline size to a4 titleblocks shipped with
gEDA/gschem. 

> There 
> seems to be no formal master sheet. Is there a reason why you did not do 
> a hierarchical design?
I have to admit that I have never find time to learn how  hierarchical
design works. 

> 
> I did my last layouts with the cairo enabled pcb version of Peter Clifton.
> This makes pcb a lot faster if you have OpenGL activated on your desktop. 
> The difference is impressive when it comes to polygons. Plus, you can see 
> through semi transparent tracks and pads.

I will keep this in mind.

> 
> ---<(kaimartin)>---
> 
> PS: Do you happen to know Kai Bongs?

Yes, we worked in the same institute, but on other projects in the past.
But I left Hamburg Institute for Laser-Physics three years ago -- up to
that time they did not use gEDA there (most people there  used Eagle).

Philipp Klaus Krause wrote:
> Wasn't Bitscope something similar?

Maybe. I think I have looked at that project in the past -- can not
remember details, but at least it was not to successful. I will visit
its homepage and watch its current status, maybe I should include a link
to it in my page.

Best regards

Stefan Salewski




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