Many thanks. I'll take a quick look online just to see if I can save you the trouble. I'm surprised at how little documentation there is for this thing.
As a general rule, does anyone know -- if you have a single board computer like this with serial connector, is that 'live' all the time? Or do you usually have to invoke a program in order for a terminal to connect to it and use it? -----Original Message----- From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of drlegendre . Sent: Friday, October 16, 2015 11:06 AM To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> Subject: Re: ASCI u68 (SystemX) The Heathkit ET-3400 (another SBC trainer) also used the M6800 CPU. Now I realize that the two machines probably have fairly different ROMs, but otherwise some of the 3400 materials / programs should cross-over to the u68. It might even simply be a matter of translating ROM calls.. Anyway, I have a full set of docs for the ET-3400. If you're interested, I can find a way to get a copy to you. -Bill On Fri, Oct 16, 2015 at 11:16 AM, Brad <unclefal...@yahoo.ca> wrote: > Hey guys, > > > > Posting this to various forums in the hopes of finding someone in the > know > - > I have this ASCI u68 system (6800 cpu) that I understand was used in > educational environments. I kind of have it running but know little > about assembly language programming, etc. Or the unit itself. Have > any of you ever messed with these? It looks like it has a serial > connector on its mainboard.. was trying to figure out a way if I could > patch it to one of my terminals. > > > > Also trying to find some simple 6800 assembly programs/routines to > test it and see if it really works properly. There is an MC6821S chip > on it (there are three of them actually) and one in the middle is > marked 'BAD'. I understand those handle peripherals. > > > > I'd also heard rumours there was a second board available for these > that gave them BASIC. I've never seen such a board for sale anywhere > - wondered if anyone had seen one in the wild. > > > > Brad > > > > > > ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.6172 / Virus Database: 4447/10805 - Release Date: 10/12/15
