[DSP-10] EZLITE kit change ?

[ak0b]

Hi Paul,

Sorry in taking so long to respond, been traveling for the past few days and
did not want the hassle to take a laptop along on the plane this trip.

I would love to have some assistance.   I am a DSP novice.   I have done
assembly language programming in the past and do have a co-worker's
programming help.  So should be able to do some hacking of the code once I
understand the flow of it.    I did not see any thing like a flow chart ?
But there must be something to follow on how the software modules
inter-react.

I believe I have a handle on getting the schematic for the 2181 and I have
not checked but expect the schematic for the 2191 is on the CD.

We have a decent lab, so making electrical changes will not be a problem.
I build a lot of stuff.   hi

Wonder why you added the 1386 ?    I have worked with the 16550 years ago
and believe it is the one with the FIFO buffer ?

I have the DSP-10 kit on order from TAPR.     But my primary interest is in
getting the DSP (IF and audio) running and then mating it with something
like the R2 receiver.   I might use the R2 as just a mixer going from 455
khz down to 15 khz for my R390A.    I have almost all of the parts for the
frequency standard and have a GPS system based on the motorola receiver
running with a nice 1 pps output.

Stan ak0b@swbell.net








----- Original Message -----
From: "Paul R. Decker" <pdecker@netway.com>


> Stan,
>
> That would be an interesting project.  The debugger on the 2191 Kit is
light
> years ahead of the 2181.  The main differences are in the codec and the
> speed of the DSP itself.  There are some code gotcha's when porting from
8x
> to 9x, but it shouldn't be too bad.  I can probably get you a schematic
for
> the 2181 if no one else here has it handy.
>
> I would actually started a port to the 2191 and have made some
modifications
> to my 2191 ez-kit I added an LTC1386 level converter.  The 2191 has a
16550
> compatible hardware uart so the code used on the 2181 for serial
> communication is reduced to a couple of lines of code.   If your
interested
> in doing this, it might keep me motivated to work with someone on the
> project.
>
> KG7HF