To the list:
~~~~~~~~~~~~
Hey all, just thought I'd let everyone know where we are, where we're
going and how we're gonna get there regarding converting the proprietry
stuff into an open variation.
Excuse the absurd formality of the post, but I think it's important to
have this clearly defined so it's a) easy to find info on the list b)
set out from the start. Additionally, if you don't like what's been
said (Tim, you might want to look at what we're proposing here and make
sure it's ok with Traversal), if you should be on the list of people
doing stuff (I'm a bit OC on getting details correct) then please let me
know!
- Piete.
To potential helpers:
~~~~~~~~~~~~~~~~~~~~~
If you'd like to help out with this, please mail me directly, since
Peter's tied up until after Easter! I'm sure he'll be overseeing what
goes on, tho' ;) I cannot offer up any jobs immediately 'cause I'm
still separating out what needs to be done into small chunks so that
anyone can get involved. The future, however, will contain component
verification, providing raw text files to make components out of and
manually editting of those components for consistency & aesthetic
purposes. Again, email me if you need help setting up & working gschem
for some of these manual labour tasks =)
To those in "the know":
~~~~~~~~~~~~~~~~~~~~~~~
A final request, before we get into the main report: can we have some
space? I've tracked down all the pertinant links and placed them in
here, but, in the end it'd be nice to point at the CVS and say: "all the
stuff is in there". I apologise if that's a sore point and hasn't been
dealt with yet.
######################################
# gEDA Schematics: Status 20060307 #
######################################
Project coordinator:
Peter Brett - [EMAIL PROTECTED] (currently in absentia)
Project members:
Piete Sartain - [EMAIL PROTECTED]
Project outline:
Convert the OGD1 schematics into a usable gEDA equivalent. The aim is
to be able to use gEDA exclusively and not rely on any proprietry
software, however this aim may change according to how well gEDA
functions at the time of conversion.
##
## Objectives
##
~~~~~~~~ Short term objectives ~~~~~~~~~~
These are what we're trying to do *now*, they are immediate and pretty
settled in terms of hows whys and wherefores.
* Port all symbols from the OGD1 BOM (bill of materials - see bottom of
the page for links) into gschem
* Reconstruct the RevB schematic in gschem
~~~~~~~~ Long term objectives ~~~~~~~~~~~
These are a bit of a pipedream, but we might get around to it eventually
if licensing and so-on require attention.
* Refine the symbols made to include the footprint information ready
for PCB implementation.
* Port the physical layout (also known as "artwork") into PCB (see gEDA
links) from gschem, with the purpose of being able to "open source" the
PCB design properly.
##
## Status
##
As of March 6th 2006:
* Finished symbols: we have a bunch of symbols done, you can find them
in symbols/ in the project directory.
* Symbol-maker script: we have a script that takes a list of pin
numbers, pin names and bank numbers and generates symbols per bank. It
was written for the main Lattice FPGA (ECP2_50_fpBGA672) and has only
been tested on that. The resultant symbols and original pin-map can be
found in ecp2_50/, the script in scripts/
* Pin sequence script: this sorts out the pin sequence of a symbol,
also found in scripts/
##
## Next step
##
* More work will go into the symbol-maker script to provide the other
major components in a reasonable amount of time. In the long term, this
might be a useful asset for making daughter-boards with large components
on them.
* The other major symbols will be generated and checked against the
original schematic, manual editting will come next to make them consistent.
* Per-page construction of the schematic is the final step in the short
term objective list, everything else is a long term issue.
##
## Links
##
~~~~~~~~ Project links~~~~~~~~~~~~~~~~~~
* Symbols & scripts: http://www.kaear.co.uk/ogp/
(place and directory structure subject to change, look out for any
notices on this list regarding placement)
~~~~~~~~ gEDA links ~~~~~~~~~~~~~~~~~~~~
* gEDA: http://geda.seul.org/
* gEDA docs (including a symbol creation guide):
http://geda.seul.org/docs/current/index.html
* PCB: http://geda.seul.org/tools/pcb/index.html
~~~~~~~~ OGD Schematic links ~~~~~~~~~~~
* RevA.2 BOM (OpenOffice 2 spreadsheet, includes hyperlinks for
datasheets):
http://www.peter-b.co.uk/downloads/opengraphics/OGD1_RevA.2_BOM.ods
* RevA BOM (plain text): http://natsuki.kinali.ch/OGD1_RevA_BOM.txt
* RevB OGD1 schematic: http://natsuki.kinali.ch/OGD1_Schematic_RevB.pdf
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