Raspberry Pi as a VIC-20/C-64 Tool?

akator · Post by **akator** » Sat Feb 16, 2013 10:56 pm

I've noticed solutions for using a Raspberry PI as a SIO device for Atari computers. Has anyone heard of anything similar in the works for the VIC or C64?

Witzo · Post by **Witzo** » Mon Feb 18, 2013 6:29 am

What's a SIO device?
I have a Pi and am studying coding for it - any combination with the VIC would be very nice indeed.

TLovskog · Post by **TLovskog** » Mon Feb 18, 2013 9:11 am

SIO = Serial Input / Output. Much the same as our IEC bus for the Atari 8-bit Computers.

http://en.wikipedia.org/wiki/Atari_SIO

FD22 · Post by **FD22** » Mon Feb 18, 2013 1:37 pm

TLovskog wrote:SIO = Serial Input / Output. Much the same as our IEC bus for the Atari 8-bit Computers.

http://en.wikipedia.org/wiki/Atari_SIO

In the early stages of wiring one of mine up as a turbo-nutter 1541-compatible storage controller. My electronics is sufficiently rusty that I'm double-double-checking everything to make sure I've buffered and isolated the two from each other properly. In fact, I'm even thinking of opto-isolating and using a MIDI-controller on the Pi as the server, using a programmable SysEx patch manager with a custom-written 1541-decoder in front of it. Or I might just grit my teeth, flick the switches and hope I don't fry either machine...

HermanVIC · Post by **HermanVIC** » Tue Apr 30, 2013 5:29 pm

Could the serial port on the VIC be used as the interface on the VIC side?

The PI as a 1541 emulator off the serial port is great, I would like to follow the progress. I have a PI and would like to try using it in this way.

Great work keep it up!!!!!

Herman

bills442 · Post by **bills442** » Wed May 01, 2013 9:06 pm

does the Pi have the required timing accuracy to do such a thing?
I thought the commodore disk drive timing was super picky, that and the Pi runs linux right?

sure would be a cool device. wonder if you could power the pi from the vic user port

Schema · Post by **Schema** » Thu May 02, 2013 7:24 pm

Yes, I've heard of someone using the XS1541 with the Raspberry Pi, but I don't know the details.

http://www.c64-wiki.de/index.php/XS1541

Wilson · Post by **Wilson** » Thu May 02, 2013 9:33 pm

does the Pi have the required timing accuracy to do such a thing?
I thought the commodore disk drive timing was super picky, that and the Pi runs linux right?

Yeah, it may be possible, but it would not be straightforward. As you said, the timing is very picky for perfect emulation. You don't have to run Linux on the Pi, but even with the "bare-metal" approach there are several issues. This topic was discussed briefly recently on CSDb in this thread.

Vic20-Ian · Post by **Vic20-Ian** » Sat Jul 06, 2013 1:42 am

See here for Raspberry Pi use with Vic

http://sleepingelephant.com/ipw-web/bul ... php?t=6529