20 Sep
2006
20 Sep
'06
9:04 a.m.
On Wed, 20 Sep 2006, Chuck Guzis wrote:
On 9/19/2006 at 10:36 PM Zane H. Healy wrote:
The USER port on the C64 (which Zane's MAX232 hookup is using) is only
really useful up to about 2400bps in this application.
(The RS232 timing is done via NMI (since of course there's no UART), so
the kernel gets kinda flattened by this. There are third party softwares
which allow up to 9600bps, but it's apparently unsupported by most people
and kinda hinky).
JP
Well, I finally finished the MAX233 based User
Port Serial interface
(it was basically finished Sunday). In case anyone is curious, here
are a couple pictures.
Looks nice, Zane! How fast can the C64 receive using this rig? Can you
accommodate a 56K modem running full-tilt?