Re: PC/Amiga->C64 xfer programs

From: Marko Mäkelä (
Date: 2002-01-14 09:00:58

On Sat, 12 Jan 2002, Bo Zimmerman wrote:

> The best I've found is prlink with my Amiga.  However, my Amiga is even too
> fast for it, causing frequent transfer failures.

Are you using a twisted-pair cable, or a ribbon cable, or what?  For long
distances, you'll probably get some disturbance in the signals.

Yesterday I assembled another prototype of the C2N232 device and created
32-bit Microsoft Windows executables for the c2n and cbmlink transfer
programs.  The former is needed to emulate standard cassette operations,
and the latter is the replacement of prlink.  Since I don't know how to do
low-level port I/O on systems like Windows 2000, I disabled the parallel
cables from the Windows executable.

Of course, the RS-232 option could be implemented also for the Amiga.
Several weeks ago, I browsed an Amiga programming manual, and the RS-232
interface didn't look very similar to POSIX termios.  I'm not even sure if
a stock Amiga 500 will handle 38400 bps.

If you need more than 38400 bps transfer speed, it is possible to
integrate Pasi Ojala's gunzip.c64 with cbmlink.  In that way, the data to
transfer would be crunched.  This would mainly speed up transfers of disk
images; executables tend to be already compressed.  However, the
integration hasn't been done yet.

I'll release the new c2n and cbmlink later, when I've cleaned up the code
a bit and written some documentation.  For cbmlink, there will be new
options for reading and writing the disk drive's memory.  If you're
interested in a pre-release, let me know.


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