Re: [Xylo-SDR] Firewire, DSP and FPGA on one module

["Ahti Aintila" <ahti@attocon.com>]

Cecil, Eric and others,

Good plan, but don't waste too much time and efforts in walking or even 
running - I want to "fly"! Soon! In my road map XYLO-SDR is just an 
excellent tool (not a product per se). It is useful for creating the 
self contained radio built around a DSP chip that in the field performs 
as the basic transceiver with functions downloaded from the desktop PC 
for that purpose. At the hamshack it may borrow the number crunching 
capacity for more advanced tasks and the fancy GUI from the PC.

Would that be our common goal?

73, Ahti OH2RZ

----- Original Message ----- 
From: "ecellison" <ecellison@comcast.net>
To: "'Xylo-SDR Discussion'" <xylo-sdr@lists.ae5k.us>
Sent: Sunday, December 18, 2005 9:22 PM
Subject: Re: [Xylo-SDR] Firewire, DSP and FPGA on one module


> Cecil
>
> Excellent summary. Yep, could possibly (in the future replace the PC 
> with
> SBC add Ethernet and run everything remote. With PCIExpress the whole 
> unit
> could be pretty compact. However, that is not to preclude other 
> experiments
> in SDR as are being mentioned. We'll walk first!
>
> Eric
>
>
> -----Original Message-----
> From: xylo-sdr-bounces@lists.ae5k.us 
> [mailto:xylo-sdr-bounces@lists.ae5k.us]
> On Behalf Of KD5NWA
> Sent: Sunday, December 18, 2005 1:30 PM
> To: Xylo-SDR Discussion
> Subject: Re: [Xylo-SDR] Firewire, DSP and FPGA on one module
>
> The main thrust right now not necessarily in priority order is to;
>
> 1. Eliminate the sound card, with one of superior quality, with
> elimination of ground loop noise.
> 2. Correction of the 200MHz and A/D clocks clock to super accuracy
> and stability.
> 3. Replacing of the parallel port interface in the SDR-1000 which
> controls band switching, Autotuner control.
> 4. Control and audio for improving CW operations.
>
> The ultimate goal being of having one USB cable between the PC and
> the SDR 1000 radio, all data and control being done through USB.
>
> Once that is accomplished some in the group are interested in going
> further, to at least reduce the load on the CPU by doing some of the
> PC's task in the FPGA so slower laptops and PC's will function, if
> not outright replace the PC.
>
> Outright replacement of the PC is a very tall task, you will be
> replacing all the current software with hardware and with our budgets
> all we can afford are limited free tools. I would most likely involve
> adding a floating point DSP chip to the mix.
>
> One of the reasons I have pushed for usage of a Cyclone II chip is
> the added hardware multipliers that can be used in making a data
> crunching unit, most of the FFT and filter code consist of additions,
> subtractions, shifting and multiplication.
>
> All these task will be modules of software in the FPGA and can be
> added or removed at will for use in other projects.
>
> At 10:20 AM 12/18/2005, you wrote:
> > Robert,
> >
> > I may have read a lot into the project that I wanted to see but I
> > thought one of the reasons for the efforts were to replace the desktop 
> > /
> > laptop. This thought may apply to the disscussion of the USB 1 or 2.0,
> > it is a link to the desktop / laptop and we know that can be done, but
> > in order to have a SDR free from the big computer we need hardware 
> > that
> > is fieldable and relatively low power.
> >
> > Cash