[hpsdr] Potential New openHPSDR Project

[Rob Frohne]

Hi Phil, et. al.,

One thing I would like you to think about is the long term availability 
of the computer boards you propose to use.  Try and do it in such a way 
that it will work with future generations of similar boards with no 
modifications.  Back in 1998 I did a similar project 
<http://people.wallawalla.edu/%7ERob.Frohne/R2_DSP/Motorola_DSP_Receiver.html> 
that used very a cheap Motorola DSP56002EVM board.  It was great until 
those evaluation boards weren't available anymore, which happened much 
too quickly, and I couldn't afford to purchase new evaluation boards to 
port my code to every time they changed.

73,

Rob, KL7NA



On 07/09/2010 01:32 AM, Phil Harman wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> All,
>
> There seems to be some interest in building a  Microprocessor/DSP board
> that will plug into the Atlas bus and enable an openHPSDR system to
> operate without the need to have a PC connected.
>
> Whilst one option would be to design and manufacture our own board from
> scratch, which would be an interesting and challenging project, another is
> to build on existing work by others.
>
> The Beagle board  (http://beagleboard.org/) looks like a suitable
> candidate since it has both an OMAP3530 processor and TMS320C64x+^(TM) DSP.
>
> It also appears that some SDR support is already available in that dttSP
> has been ported and support for the SoftRock exists.
>
> In terms of getting data into the DSP from the Atlas bus there is an
> McBSP3 interface, which I understand can be configured as I2S, that
> connects directly to the DSP.
>
> The suggestion is that we design a simple, low cost, mother board that
> will take a Beagle board and enable it to be interfaced to the Atlas bus.
>
> This would be along the same lines as what the USRP folks are doing here:
>
> http://members.cox.net/ebrombaugh1/embedded/beagle/beagle_fpga.html
>
> We can also build on ideas from the BeagleBrick announced at Dayton this
> year:
>
> http://beagleboard.org/project/BeagleBrick/
>
> Kevin, M0KHZ, has available to layout a suitable PCB and I'd be happy to
> develop any FPGA code that may be required.
>
> Is there any interest in such a project and anyone willing to be the
> project leader please?
>
> 73's Phil....VK6APH
>
>
>
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-- 
Rob Frohne, Ph.D., P.E.
E.F. Cross School of Engineering
Walla Walla University
100 SW 4th Street
College Place, WA 99324
(509) 527-2075			 http://people.wallawalla.edu/~rob.frohne

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