Dan McMahill wrote:
> John Doty wrote:
>
>>> LVS is one of _layout_ verification methods. Others are DRC (often
>>> separated into several checks: antenna, density etc), ERC, LVL (GDS
>>> compare).
>> I don't know what open source tools exist here. It would be
>> interesting to investigate incor
John Doty wrote:
>> LVS is one of _layout_ verification methods. Others are DRC (often
>> separated into several checks: antenna, density etc), ERC, LVL (GDS
>> compare).
>
> I don't know what open source tools exist here. It would be
> interesting to investigate incorporating them into a gEDA
On Monday 21 January 2008, John Doty wrote:
> I don't know what open source tools exist here. It would be
> interesting to investigate incorporating them into a gEDA
> flow.
What is keeping them away?
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I was going to comment that I make all pads as small as the design
rules allow, unless they're used for structural support.
Then I read the rest of your email.
I think there are two considerations:
1. How big is the tip of the average soldering iron? I think the
annulus should be at least a
Hi,
When I do boards for myself, I usually make through-hole pads pretty
small. After all, if the board already has 0603 parts on it, a
through-hole pad close to minimum isn't a big deal.
But I am working on a couple of designs that will be kitted up for a
more general audience -- if you
On Jan 21, 2008, at 3:51 PM, a r wrote:
> On Jan 21, 2008 8:47 PM, John Doty <[EMAIL PROTECTED]> wrote:
>>
>> It seems like netlists, not schematics, are the basis here. I don't
>> see why that is at all a problem for gEDA as currently structured.
>> Either a separate tool or a gnetlist back end
On Jan 21, 2008 8:47 PM, John Doty <[EMAIL PROTECTED]> wrote:
>
> It seems like netlists, not schematics, are the basis here. I don't
> see why that is at all a problem for gEDA as currently structured.
> Either a separate tool or a gnetlist back end could do this. I don't
> see why you think a spi
On Jan 21, 2008, at 11:59 AM, a r wrote:
> On Jan 21, 2008 6:02 PM, John Doty <[EMAIL PROTECTED]> wrote:
>>
>> On Jan 21, 2008, at 10:43 AM, John Griessen wrote:
>>
>>> John Doty wrote:
>>>
> - clean schematics are needed for LVS,
What's LVS? Please don't assume we know your jargon.
> What about an unhide-all function?
Write a plug-in, test it out, and if people like it, propose adding it
to the core sources.
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What about an unhide-all function?
I'm using a DJ layout style where you size the element names as large as the
teeny components
and hide them with making an assembly drawing in mind.
I can do a layout post process to change all hidden to unhidden and put that in
a
different pcb file for making
A couple of suggestions on my experience:
- add 'gafrc' and 'gschemrc' to the terminology section. I am still
learning the extent of their functionalities and a short description
would be nice, as well as a reference to a more complete guide to syntax
and functionality. (I've seen some exampl
DJ Delorie wrote:
> I've started the second "first" board in the Getting Started manual.
Read that and looks good, don't see any typos.
> Now for the insanity...
The second module is an array of
> 128 red and green LEDs to make an 8x8 "screen".
Yes.
John G
--
Ecosensory Austin TX
___
On Jan 21, 2008 6:02 PM, John Doty <[EMAIL PROTECTED]> wrote:
>
> On Jan 21, 2008, at 10:43 AM, John Griessen wrote:
>
> > John Doty wrote:
> >
> >>> - clean schematics are needed for LVS,
> >>
> >> What's LVS? Please don't assume we know your jargon.
> >>
> > Layout Versus Schematic checker. EDA
Aha! That looks like what I want, thank you. I have seen this page,
but I didn't read past the first screen since I didn't have a design
that I was ready to sent to PCB with gsch2pcb. Also, "It assumes the
gEDA, PCB and gsch2pcb packages are already installed and ready to use"
- and I didn't
Aaargh! I meant that we gather on Tues eve, Jan 22nd!
Good catch. Thanks!
Stuart
On Mon, 21 Jan 2008, Kai-Martin Knaak wrote:
On Mon, 21 Jan 2008 07:11:30 -0500, Stuart Brorson wrote:
Date: Tuesday, Jan 21st, 2008. (*** Note day ***) Time: 7:00pm,
On Monday 21 January 2008, John Doty wrote:
> the extracted
> netlists from the layout correspond to schematics that are
> humanly incomprehensible!
That is why the preferred approach is to back-annotate layout
differences to the original schematic.
> But again, I am very far from the
> VLS
On Mon, 21 Jan 2008 11:18:55 -0500, epswint wrote:
> I haven't been able to find a start-up procedure
> for gEDA - perhaps I missed it.
Maybe you are looking for the setup section of the tutorial:
http://geda.seul.org/wiki/geda:gsch2pcb_tutorial#setup
---<(kaimartin)>---
--
Kai-Martin
On Jan 21, 2008, at 10:43 AM, John Griessen wrote:
> John Doty wrote:
>
>>> - clean schematics are needed for LVS,
>>
>> What's LVS? Please don't assume we know your jargon.
>>
> Layout Versus Schematic checker. EDA jargon. Chip design jargon.
> Our jargon.
>
The people I work with call it
John Doty wrote:
>> - clean schematics are needed for LVS,
>
> What's LVS? Please don't assume we know your jargon.
>
Layout Versus Schematic checker. EDA jargon. Chip design jargon. Our jargon.
John G
--
Ecosensory Austin TX
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On Jan 21, 2008, at 9:33 AM, epswint wrote:
> ... a fork from DJ's "more insanity and documentation" thread.
> I've made a custom symbol, but I can't figure out how to get at it
> through gEDA.
>
> I've put a "gafrc" and "gschemrc" files in my ~/.gEDA directory,
> -- [EMAIL PROTECTED] .g
On Jan 20, 2008, at 2:33 PM, a r wrote:
On Jan 20, 2008 6:19 PM, John Doty <[EMAIL PROTECTED]> wrote:
On Jan 20, 2008, at 6:51 AM, a r wrote:
1. It forces me to add a simulation card to the schematic. In
general
cases that something I'd like to avoid (it is OK for testbench
schematics, tho
... a fork from DJ's "more insanity and documentation" thread. I've
made a custom symbol, but I can't figure out how to get at it through
gEDA.
I've put a "gafrc" and "gschemrc" files in my ~/.gEDA directory,
--
[EMAIL PROTECTED] .gEDA]$ ls
gafrc gschem-dialog-geometry gschem-recent-f
Thanks for your help - but I still can't figure out how to load my own
sym files or symbol library. I haven't been able to find a start-up
procedure for gEDA - perhaps I missed it. At this point, I think I'd
better start a new thread...
DJ Delorie wrote:
Read ~/.gEDA/gschemrc file [/home/Et
> Read ~/.gEDA/gschemrc file [/home/Ethan/.gEDA/gschemrc]
Looks like it found it. I make them both pretty much identical,
because tools usually read one or the other but not both.
> My goal is to set up a component symbol and footprint libraries off of
> my home directory.
This is what I do;
Thank you very much for the documentation. I'm following it right now,
though I'm still having problems with gEDA not finding my gafrc and
gschemrc files, both of which are in ~/.gEDA:
--
Read ~/.gEDA/gschemrc file [/home/Ethan/.gEDA/gschemrc]
Did not find optional local gschemrc file [/hom
-- Free Dog Gathering Announcement
The Free EDA Users Group will meet this coming Tuesday, Jan 22nd.
It's been a couple months since we last gathered. Let's get back
into the swing of things with a quick, mid-winter gathering at the
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