[hpsdr] TI, Sasquatch, etc.

[Bob McGwier]

The OMAP contains the TI DSP part and it is not a C67xx.  It is C64x and all
integer.  What the Omap has in the Beagle Board is ARMv7a (later model than
ARM11, confusing nomenclature).  It has Neon which is a SIMD engine that can
do floating point quite efficiently.  

The OMAP-LXX parts have the C67XX but it does not have the camera interface,
or  OpenGL 2D/3D hardware acceleration and DVI-D driver.   

In my opinion, these parts from TI, accompanied by their release of tools
for free as in beer strongly mitigate doing the low power SDR and stand
alone SDR using these parts.  They are MUCH easier to deal with than the
dsPIC33.  The OMAP-L137 uses 0.5w at 300 Mhz with 300 MHz on the floating
point DSP and is an ARM9.  It has multiple 16550 UARTS, all supported by
DMA.  It has USB. 

Both would be good.  The OMAP3530 uses more power and costs five times as
much at digikey (55 dollars versus about 10 for the L137).

Bob

ARRL SDR Working Group Chair
Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,
NJQRP, QRP ARCI, QCWA, FRC.
"Trample the slow ....  Hurdle the dead"


-----Original Message-----
From: hpsdr-bounces at lists.hpsdr.org [mailto:hpsdr-bounces at lists.hpsdr.org]
On Behalf Of Alberto I2PHD
Sent: Wednesday, October 01, 2008 5:27 PM
To: hpsdr at lists.hpsdr.org
Subject: Re: [hpsdr] TI, Sasquatch, etc.

***** High Performance Software Defined Radio Discussion List *****

> Lyle, Frank, and I have had VERY preliminary discussions on resumptoion 
> of Sasquatch and how it should go forward and possibly be modified.
> 
> These parts:
> 
> http://focus.ti.com/docs/prod/folders/print/omap-l137.html

In this vein, also this page could be interesting :

http://beagleboard.org/

It has an OMAP *and* a 'C67xx DSP on board.

73  Alberto  I2PHD

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