Richard... strongly suggest F7/H7. or STM32H750VBT6 ($7)
F4 wont be good for much, the new modes wont fit without a tone of work
and optimizations
IMO the board will tie everyone that uses it to old code, old modes and
insufficient horsepower, sub par modern performance.
glen
On 12/02/2019 8:29 AM, Richard wrote:
Hi All,
FYI, I've now completed the hardware design for a simplified,
compacted SM1000. Because it's intended to be used inside other
equipment it does not have the power supplies or the isolated
interfaces. In the end I kept the F4 and unless I have screwed up the
pinning it should be binary compatible with the SM1000. Overall size
is now 30 mm square, with double-sided assembly. It's aimed at hams
who build their own rigs, not big radio manufacturers.
Schematics and a couple of pretty pics are on this EEVBlog post:
http://www.eevblog.com/forum/rf-microwave/compact-variant-of-sm1000-digital-voice-adaptor-for-use-inside-equipment/
When I've got it finalised and generated the manufacturing files I
will release it under the TAPR open hardware license like the SM1000.
Unless anyone spots any major errors I will probably order some (bare)
boards in the next week or so. I am happy to add some to my Chinese
fab order if anyone else is interested.
@ Rick Barnich and David Rowe, as the original designers I'm happy to
populate and post a board if you're interested.
Richard
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