29 Apr
2005
29 Apr
'05
3:19 p.m.
On 4/29/05, Tony Duell <ard at p850ug1.demon.co.uk> wrote:
I've not looekd at the prints, but I'd be wary of changing a crystal. It
may well be used for the CPU clock, or video timing, or something like
that.
I'd try to figure out the divider chain, and see if you can connect the
UART clock pins to something twice as fast (i.e. one binary division
stage less).
-tony
Not necesarily. The 6402 takes external transmit
and receive clocks, at
16 times the desirted baud rate. If the clock generator hardware can't go
faster than 16*4800 for some reason, then you won't get more than 4800
baud. This is probalby very easy to modify, though.
Sorry to sound simplistic, but does that mean if I just whack in an
appropriate crystal, then I'd magically get 9600? (haven't downloaded
the prints yet)