🚀 go-pugleaf

On Sun, 24 Mar 2002 17:31:58 -0500, "KG7HF" <KG7HF@amsat.org> wrote:

Thanks for the advice PD and also thanks to Al.

Yes I got a quote on the 21161 kit this today.  Its basically US$500..

 Mutiple channels should give pretty awesome for my app.  and 600MFLOP
should allow higher sampling rates whether I need them or not. Pity
there dosen't appear to be any SP-DIF receivers or transmitters.  But
I could probably design a little daugher board to do this .. one
day...

One thing that concerns me is that the evaluation kit is limited to
8kb program size.  ie 2048 Words.   Should I assume this is going to
be more than enough for my FIR filter implementation?

I wonder, is there separate memory space to store my filter
co-efficients... Because I will probably have nearly 2000 filter
coeficients which wouldn't leave a lot of space for program.

Also I suppose the program must be stored in a low-speed flash memory
anyway, and probably gets loaded by the boot loader or external
micro..  Yes.. I got a lot more research to do.. Hopefully I will be
able to get a soft-copy of the users manual from the AD rep.
Obvioulsy I will study the data sheet.

Thanks agian..
John.


















>I agree, the 21161N EZ-Kit would be a good choice since you budget is $500.
>The debugger with the 21161N Ez-Kit is USB based, and is much faster and
>more robust than that available with the 21065L EZ-Kit.  I think you will
>also find that if you do run into any technical difficulties, you will get a
>much better responses using the newer evaluation boards.
>
>PD.
>
>
>"Al Clark" <dsp@danvillesignal.com> wrote in message
>news:Xns91DB81B2F6D2aclarkdanvillesignal@209.249.90.101...
>> john_wr100@yahoo.com (Johnny) wrote in news:3c9db1ea.6888487
>> @news.optusnet.com.au:
>>
>> > On Sun, 24 Mar 2002 10:18:32 GMT, john_wr100@yahoo.com (Johnny) wrote:
>> >
>> > I am planning on doing some experimentation with digital fitlers. I
>> > want to make an active crossover for my audio system. I was looking at
>> > one of the following kits:
>> >
>> > Motorola DSP5636X Evaluation module.
>> > or
>> > Analog devices ADSP-21065L Ez-Kit lite
>> >
>> > I probably need about 80 Million multiply/accumate per second and at
>> > least 24bit fixed point. Faster is better though.
>> >
>> > I dont mind programming in Assembly or C language.  I figure that
>> > assembly is probably fine because my code should be pretty simple just
>> > to implement FIR filters and  I/O functions.  I was kind of scared by
>> > roughly 1000 pages of documentation for the motorola development
>> > system and DSP programmers guide.
>> >
>> > Does anyone have experience with these kits?
>> > Which is easier to use, and will offer the best learning curve?
>> > Should I look at Texas Instuments or other DSPs?
>> > What kits are the best value for money?
>> >
>> > I was thinking of spending around US$500, but I might be able to
>> > extend that.
>> >
>> > best regards,
>> > Johnny
>> >
>> >
>>
>> Since you mentioned crossovers, I assume you need at least 4 channels of
>> DACs. I would get a 21161 EZ-Kit. This 21161 is much faster than the
>> 21065L. It also has SIMD hich will work very well for your application.
>>
>> The EZ-Kit was 8 channels of 96kHz DACs.
>>
>>
>>
>>
>>
>>
>> --
>> Al Clark
>> Danville Signal Processing, Inc.
>> --------------------------------------------------------------------
>> Purveyors of Fine DSP Hardware and other Cool Stuff
>> Available at http://www.danvillesignal.com
>
>