Stuart MacDonald wrote:
> I have some concerns about your math. In general, the baud
> divisor must be an integer.
>
> Base Baud Baud Rate Divisor
> 812500 50700 16.03
> 812500 430100 1.89
> 6881730 50700 135.73
> 6881730 430100 16.0003
>
> Only one of those comes close to being an integer. Are
> you sure the numbers are correct?
Well, if you look at them that closely, they aren't, in fact
the communication rates I need I highly non-standard (more
like 50781 & 430108) so I figured I could simplify, sorry.
Anyway I'd don't think I'll find anything that does exactly
what I'd want it to do, so if you know of a card that works
in these ranges, I'll do the math and tell you if it'd work.
> The lowest base rate that would support both 430100
> and 50700 is
>
> 218060700 / 50700 = 4301
> 218060700 / 430100 = 507
Sure, however (and thanksfully I'd say) the device can
accept some variation around its nominal com speed so the
lesser figures I indicated should do fine. Be assured we'll
double and triple check every possible speed before buying
anything :)
--
Nicolas
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