Understand Alex, but these days you can buy a USB to serial “adaptor” cable for a few $. It looks like an RS232 on one end and a USB port on the other. Your computer never needs to know! John From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On Behalf Of J. Alexander Jacocks Interesting; I tend to find baud rates not to be confusing, but then I don't use teletypes. So, being at heart a UNIX guy, the baud rate is 9600, there is no parity, and 1 stop bit. :-) I set all configurable devices to those settings, and leave them, as I have not often needed a faster speed, even for file transfer, for vintage equipment. Seriously, though, I'd rather have a serial port on the board, as it opens wider the selection of devices that can be attached. I quite often don't have a machine with a USB port handy, even in my office, due to the lack of very long (over 10') USB cables. Serial devices I have, in plenty. I actually find VGA/PS/2 to be a better combo than USB, because I always have a KVM switch around. It's not a killer, to me, but that's my $0.02 worth. - Alex On Sun, Sep 27, 2015 at 1:04 AM, Andrew Bingham <abin...@gmail.com> wrote: I think this is looking pretty good, John. You're right that baud rates confuse a lot of people. I have so many different new and vintage devices that I have to look it up every time. I think having onboard storage is a big win as well. On Saturday, September 26, 2015 at 12:38:56 PM UTC-7, monahanz wrote: Hi Tom, Normally I would agree and these days I’m a GAL/CPLD convert. But I’m thinking that since this may be the very first S100 board a new user may build I would like to keep the variables/challenges to a minimum. The board is linked 100% with simple 74LSxx chips. The circuits are such that I should be able to write-up fairly straightforward build and debug steps on the web page – explaining what each sub-circuit does. I kind of intend to go overboard on the board build/debug for this one to help first time users get airborne. I continuously get e-mails about “chicken & egg” problems with users getting started in hardware. With this board they should later be able to step by step inactivate sections and go on to build more powerful multiprocessor systems. Where I will need help is not only some of you double checking the write-up (when it’s done) but I really could use support in doing a CF-Card image downloaded from a PC that will immediately allow booting up a banked CPM/3 system. I really could use one or two volunteers for this. The end goal being:- built a board, pop in that CF card, hook up a Telnet PC USB connection over your laptop and you instantly have a running S100 bus CPM system. BTW, I managed to get Freerouter to get me a board with only 520 vias. Will send off to Advanced Circuits for prototype tonight. FYI here is a picture of the board layout, From: n8ve...@googlegroups.com [mailto:n8ve...@googlegroups.com] On Behalf Of Tom Lafleur John... It is of my option that GAL are ok on a board like this, cost is less that the number of chips it save, saves board space and is easy to program and I'm sure we can find someone to pre-program them for this board if need be... my two bits On Sat, Sep 26, 2015 at 11:14 AM, John Monahan <mon...@vitasoft.org> wrote: Will do Robert but its 4-6 weeks away yet. I will put out an “order” announcement at that time John From: n8ve...@googlegroups.com [mailto:n8ve...@googlegroups.com] On Behalf Of Robert Greenstreet Hi John, Whatever configuration the Beginner S-100 SBC is finalized in: Please add my name to any list that may be forming for this board. Thank you, Robert Greenstreet -- --
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