[hpsdr] Parallel port replacement - help needed

[Sami Aintila]

Hi Phil,

As you know, Ahti is very interested in many HPSDR projects. I haven't
had much time myself to follow everything that's happening. Still, if
you're doing SDR-1000 parallel/USB conversion, it seems like a good
idea to make it as compatible with the Flex adapter as possible. I
hope I can help you with this.

The actual implementation, especially on the OZY end, is something you
and other volunteers have to do on your own. However, on the PC side
of things, I would recommend using the existing API between PowerSDR
(or any other client) and USB. This way current (and future) versions
of PowerSDR will work with your USB interface with little or no
modifications to the hardware control code.

USB support for 1.6 and previous versions of PowerSDR is provided
through Sdr1kUsb.dll. However, with the famed "new software
architecture" that's coming someday, also the USB code will be
included in the open source PowerSDR distribution. This way also
non-Windows users will have access to the USB interface. In fact, I
believe Bob McGwier has already been testing the new USB code on
Linux.

I hope I can send you some detailed information already before leaving
for a trip next week. But if not, I'm afraid you'll have to wait a
couple of weeks until I return.

73, Sami OH2BFO


On 8/1/06, pvharman at arach.net.au <pvharman at arach.net.au> wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> Parallel port replacement
>
> We need some assistance with devleoping a parallel port replacement so we can
> control the SDR1000 over the OZY USB interface.  With this in place we will
> have a single USB interface between the  PC and SDR1000 carrying all audio and
> control signals.
>
> What we need is someone to document the format of the data that needs to be
> sent from the PC to the SDR1000 hardware for each function and also what is
> sent back from the SDR1000 to the PC.  For example, send a byte with these
> bits set to select 20m, send x bytes with these values to set the radio to
> 14.00000MHz.
>
> >From the PC end it may be possible to reuse the existing USB functions but I'm
> not sure how much processing is done in the existing USB-Parallel adapter
> which we may not want, or be able, to duplicate.
>
> The data format  can be worked out by looking at the SDR1000 circuit diagram
> and the hardware code in PowerSDR.
>
> Once this is documented  we already  have a Verilog volunteer raring to go.
>
> The usual rewards of unlimited fame and glory awaits the successful applicant.
>
> 73's Phil...VK6APH
>