I am currently working on getting the 700D mode to work with the SM1000.
It is not certain that this will be possible because of the memory
needed.

Also Dave is looking at new compression modes with different performance 
and bandwidths.

I see the current firmware as best suited for experimenting and developing
on a desktop PC.  To make a small, low cost embedded version one would
likely want to do a major re-write of the code.  Lacking that, I suggest
that you look at processor versions that have a lot more memory so that
it will support future modes.  The STM32F7 family looks interesting.

Don Reid - W7DMR

On Mon, Feb 04, 2019 at 05:42:15PM +0000, Richard wrote:
> Hi All,
> 
> I hear this mailing list covers the SM1000 hardware implementation.
> 
> I am thinking of (well, I've started) designing a "module" version designed
> to plug into a rig. The idea being that if you're building a radio you can
> include a small plug-in module on pin headers that adds digital voice.
> Because it lives inside other equipment it can be smaller and simpler than
> the SM1000, just keeping the core functionality without the isolated
> interfaces, external enclosure, etc. Essentially it's a stripped-down
> SM1000 in a smaller physical form factor. I've not got as far as a draft
> placement but I am anticipating something on the order of 50 mm square.
> 
> Is anyone else interested in this? Any comments or suggestions?
> 
> If no-one else wants it I will probably build a few for myself anyway.
> Software is not my thing so unless there's a good reason otherwise I expect
> it to run the standard SM1000 firmware.
> 
> A couple of things I have not been able to work out, 1. what's the
> not-fitted EEPROM intended for? and 2. what is the USB OTG used for? It
> looks like device mode is used for updates but in what situation would host
> mode be used?
> 
> Richard
> M1FJA


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