[hpsdr] Pico-ITX as possible processor for HPSDR?

[Robert McGwier]

Lyle Johnson wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
>>> The new Yaesu FT-450 is an SDR although they don't market it as such.
>>> What they do say is the they digitize the signal at the IF stage
>>> and do all further processing including demodulation and filters
>>> digitally.  Sound like SDR to me.
> 
> All SDR is DSP, though not all DSP is SDR :-)
> 
>>> The FT-450 uses an Analog
>>> Devices "Blackfin".  The neat thing about the Blackfin is that (1)
>>> the hole thing sell for between $14 and $28.  Compared to a
>>> "pico ITX" the AD chip is almost free.
>> What about the 16 bit DSP limitation of the Blackfin? The RISC CPU of
>> the Blackfin is 32 bits but the DSP engine is only 16. That sucks for
>> dynamic range and you might as well then not bother with a 24 bit ADC.
> 
> I sort of like the idea of using a TMS320C6726 DSP engine myself.  Fast, 
> 32 bit floating point, multiple execution units, low power, and only $21 
> in singles,  ...
> 
> Oops, sounds like Sasquatch!
> 
> 73,
> 
> Lyle KK7P
> 

And low power, etc. etc.  The one and only issue I have with the TI 
parts is the development tool$.

Bob


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