IMO it would be useful to add a one line description
of what the product does. Many people looking
at e.g. the schematics will not know what a "Xua" is or does.

qi-hardware hosts an expanding list of proto-products
all with code names.
---
Ron K. Jeffries







On Sat, Nov 13, 2010 at 14:01, Werner Almesberger <[email protected]> wrote:
> Andr?s Calder?n wrote:
>> Xu? is ready for (exhaustive) revision. Our Colombian team will review the
>> design, but community support will be invaluable.
>
> I had a very quick look at it. It looks quite good, but a few
> improvements would be nice to have before starting a real review:
>
> - URLs of the data sheets of the various chips used in there
>
>  I've written a little system for caching and accessing data sheets.
>  It's called "data sheet viewer", abbreviated to "dsv". It lives in
>  eda-tools/dsv, but it's more convenient if you link/copy it into
>  /usr/local/bin/ or $HOME/bin
>
>  It uses a file with URLs and short names for data sheets. One example
>  of such a file is ben-wpan/BOOKSHELF
>
>  Each entry has one name tag (N:) that identifies the data sheet, plus
>  zero or more aliases (A:) that also identify it. In terms of use,
>  they're currently equivalent. "dsv" uses the name tag to detect the
>  beginning of an entry, so the name has to be first.
>
>  The data sheet URL is specified in a D: tag. (Only one per entry. If
>  there are more, only the last one is used. It must be a PDF.)
>
>  Example:
>
>  N: at86rf230
>  A: transceiver
>  A: txrx
>  A: atrf
>  D: http://www.atmel.com/dyn/resources/prod_documents/doc5131.pdf
>
>  To download the data sheets, go to the directory where you want to
>  build the cache, e.g., the project's home directory, and run
>  dsv setup BOOKSHELF
>
>  Now a data sheet can be accessed with  dsv <name>  e.g.,
>  dsv txrx
>
>  dsv searches for caches from the current directory towards the root.
>  So if you're in a subdirectory of the project, it will find "txrx"
>  as well. If you're in a different project, it won't find it.
>
> - a bit more complete component specs
>
>  E.g., on DBG_PRG, FB1 and FB2 are unlabeled. On "Ethernet Phy", L1,
>  L2, L3, have the same problem, same thing on "USB". Ditto for the
>  resistor packs (RP*) on "FPGA Port 1 [...}" and all the resistors on
>  "Snesor PSU".
>
> - maybe fix some of the in/out label glitches
>
>  E.g., on "Ethernet Phy", VDD2 on U1 connects to a weird-looking +3.3V.
>  The same happens on GND. I think they work as expected, but they still
>  look confusing.  There's more of the same on other sheets, e.g., "Non
>  volatile memories".
>
> - do the unused-looking connections on expantion.sch (right side) and
>  NV_MEMORIES.sch (lower right quadrant) serve any purpose ?
>
>  If they will be used later, maybe add a comment in the schematics.
>
> - do you have a BOM ? ;-)
>
> - do you like the order in which the sheets appear in the PDF ? If not,
>  we can change that easily in schhist.
>
>> GIT repository:
>> http://projects.qi-hardware.com/index.php/p/xue/
>
> By the way, for reviewing the footprints designed with fped, you can
>
> cd xue/kicad/modules
> ../../../eda-tools/fpd2pdf/fpd2pdf -o all.pdf *.fpd
> xpdf all.pdf
>
> - Werner
>
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