22 Mar
2000
22 Mar
'00
11:44 a.m.
On 23-Mar-2000 Tony Duell wrote:
http://www.funet.fi/pub/cbm/documents/projects/other/reset-for-64.txt
claims it's pin 8 of U20, a 556 timer IC. I think adding a cap would be
useful for debouncing.
BTW, where would one find a connector for the user port on a C-64?
-Philip
Quite, I've got to say this is an EXTREMELY BAD way of resetting a C64
in my
experience.
Yes, but I would have thought that the main problem is that you're
effectively shorting an output (namely the output of the chip that
normally generates the reset signal) to ground. This is not generally a
good idea.
I am suprised it was the processor that failed, though. AFAIK, the
processor in a C64 never outputs anything to the reset line.
There's a fairly easy modification IIRC that adds a reset switch in
parallel with a capacitor in the reset circuit. This is a safe way to do
it. It's fairly obvious how to do this given a C64 schematic. If anyone
is seriously interested, I'll see what I can find.
-tony