ZN wrote, On 29/10/09 13:42:
On Thu, 29 Oct 2009 09:59:55 +0100, Adrian D. Ives
<[email protected]> wrote:
Tony,
I'm able to do the hardware side, but my area is really in the
software. If you were able to knock up some kind of interface between
the superHermes (which I have) and the USBWiz I'm prepared to put in
the time to look at the software.
TF> The only obvious silly aspect of the hardware design is that
there is
TF> serial but no RS232 voltages.
TF> It needs a Maxim style chip.
The reason why they do serial at TTL levels is that in general MAX232
style drivers don't do well over 230400. Surprisingly waveforms look
just fine at 230400, suggesting 4-5x higher speeds are possible, but
it won't do even twice that. First hand knowledge since I am dealing
with a 1 or 2 megabit seril link here on a daily basis...
Hallo Nasta - nice to see you are reading this (8-)#
Thanks for the input.
Well sH is max (sorry for the pun) 230400 (I think) so the max style
driver is just fine.
I will use my existing stock of the sH MC145407.
Tony
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