🚀 go-pugleaf

ktra93@control.auc.dk wrote:
: I would like to connect my PC to my Commodore 64 through a RS232-link.
: Has anybody tried this before? Is there anything weird I should
: know about doing this? For instance, what voltage levels does the
: PC's serial port use (CBM64 uses TTL) ?

: tia
: ---
: K Xoeterix
: WWW: http://www-i8.auc.dk/~ktra93

I didn't know the CBM64 had a serial port.  I know it has the "serial"
disk-drive/printer daisy chain port, but I don't think this is RS232
standard.  My best suggestion would be to connect them via a modem
link.  I know, this would be slow but the CBM64 wouldn't be capable
of much beyond 2400bps anyway.  It doesn't have a UART to handle the
serial communications.  The modems for the CBM64 plugged into the 
"parallel" port and the poor computer was stuck with tending to the
port on a constant basis.  There weren't any interrupt driven serial
port routines like on the PC.

You may be able to do something with the expansion port (i.e. build 
a card with a UART and then link it into the CBM64 via the expansion
port) but this sounds extremely speculative, at best.

There's a CBM64 "emulator" running around which runs on the PC.  You
may want to check into if it might help you run/interpret/convert
old data files to the PC.  I don't know much about it.  I think it's
available via anonymous FTP from wuarchive.wustl.edu or perhaps
ftp.cdrom.com.

Good Luck.

Robert R. Radina
radina@vulcan.inlink.com
St. Louis, MO