[op25-dev] Decode with AMBE3000 chip?

'John D. Hays' john@hays.org [op25-dev] op25-dev at yahoogroups.com
Wed Mar 22 17:09:00 UTC 2017


Hi Tom,

I don't know if this project will help https://github.com/f4exb/dsdcc

John

On Wed, Mar 22, 2017 at 8:51 AM, Tom Hayward tom at tomh.us [op25-dev] <
op25-dev at yahoogroups.com> wrote:

>
>
> I have a ThumbDV here, which is an AMBE3000 chip mounted to a board
> with USB interface.
> http://nwdigitalradio.com/wp-content/uploads/2012/04/ThumbDV-A.pdf
>
> On the computer, it is accessed with a serial interface, or let their
> ambeserver software handle the serial and communicate with ambeserver
> over the network.
> http://nwdigitalradio.com/dv3000-ambeserver/
>
> Has anyone tried integrating this with OP25?
>
> The primary system I monitor is P25p2 (TDMA), but I am curious about
> DMR and Dstar as well.
>
> My goal is to offload voice decoding to this hardware for CPU savings
> so that lower power systems can be supported. I am also curious if it
> will improve voice quality, but this is secondary to CPU savings.
>
> Has anyone profiled OP25 to see where the CPU usage goes? I'm curious
> how much I could really reduce it by offloading voice decoding but not
> RF demodulation. I suspect it's working pretty hard on RF demod.
>
> If no one has tried this, can someone at least point me toward the
> right part of the code to inject support for alternative decoders?
>
> Tom
> 
>



-- 

------------------------------
John D. Hays
K7VE

PO Box 1223, Edmonds, WA 98020-1223
   <http://k7ve.org/blog>  <http://twitter.com/#!/john_hays>
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