[TangerineSDR] Data Engine Specification, Rev 0.1

[Tom McDermott]

Hi Scotty - you've been busy!   Nice job on the document.

It may be useful to provide a little context for a few things:

1. There are a lot of connector for things I don't know anything about (and
have never heard of!).
 * Would it be useful to add some description about what the 'Click'
interface does, or how it might be used? Same for PMOD, Ultra96, GroveIO,
etc.
 * Same for all the various memory and flash units, etc. Which are in the
data path? control path?  Which are used for booting/loading the FPGA?
 * I know what an Arduino is, but why would there be such an interface on
the unit? Could we perhaps provide a useful example?

2. The document feels a little bit like the cart-before-the-horse.  For me
a system description would help
understand the DE a lot better.  It might provide more detailed examples
of:
 * How would this be used in the PSWS application? What sub-modules are
populated, what does each one do?
 * Which connector or submodules are not probably used for the PSWS?  This
could change with time of course.
 * What non-PSWS applications have needs that occupy some of the
connectors? What do those submodules do?


-- Tom, N5EG



On Wed, Apr 24, 2019 at 5:36 PM Scotty Cowling via TangerineSDR <
tangerinesdr at lists.tapr.org> wrote:

> OK, here is what I have so far on the DE (Data Engine).
>
> Comments welcome.
>
> Especially if you see something that needs to be added, or see something
> that you think does not belong.
>
> We will be able to depopulate certain functionality to provide
> lower-cost DE versions, but I wanted to be able to fulfill the PSWS and
> P4G requirements (at least the ones that we know of) without any
> additional shields/hats/mezzanine or I/O expanders. The Pmod headers
> should handle the PSWS magnetometer, which is the only sensor that I
> think is required.
>
> After we have a first look and correct the typos, I can put it up on
> Github and/or the PSWS Google group.
>
> 73,
> Scotty WA2DFI
> --
> TangerineSDR mailing list
> TangerineSDR at lists.tapr.org
> http://lists.tapr.org/mailman/listinfo/tangerinesdr_lists.tapr.org
>
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