Re: [N8VEM-S100:5032] Re: Micro Computers your youngsters

Don —

I should add some additional details on what I said. I have a PCB ready-to-go that’s a full-featured SBC which you can take a look at on Web site. I like the Micro-KIM I built, so that’s definitely a great option.

If you wanted to make a simple breadboard 6502, I’m thinking:

65C02
SRAM
EPROM
74LS138
1MHz TTL oscillator
A few 3.3k resistors for pull-ups
DS1813 Econo-reset (TO92)
Appropriate bypass caps

To this, I’d add:

6551 ACIA
MAX232
A few 10uF caps for the MAX232
6522 VIA

So, that’s 7 chips, a few passives, a clock and a reset chip and a way to communicate.

There’s also this design: http://wilsonminesco.com/6502primer/potpourri.html#BAS_CPU which is similar but has no console I/O.

Rich

Rich Cini

Collector of Classic Computers

Build Master and lead engineer, Altair32 Emulator

http://www.classiccmp.org/cini

http://www.classiccmp.org/altair32

From: Richard A Cini <rich...@verizon.net>
Reply-To: S100-Post <n8vem...@googlegroups.com>
Date: Monday, August 25, 2014 at 7:29 PM
To: S100-Post <n8vem...@googlegroups.com>
Subject: Re: [N8VEM-S100:5032] Re: Micro Computers your youngsters

I’m thinking 6502. That’s 4 or 5 chips at the most if you don’t do fancy memory decoding.

Rich

Rich Cini

Collector of Classic Computers

Build Master and lead engineer, Altair32 Emulator

http://www.classiccmp.org/cini

http://www.classiccmp.org/altair32

From: yoda <yo...@r2d2.org>
Reply-To: S100-Post <n8vem...@googlegroups.com>
Date: Monday, August 25, 2014 at 4:34 PM
To: S100-Post <n8vem...@googlegroups.com>
Subject: [N8VEM-S100:5030] Re: Micro Computers your youngsters

Might want to take a look at this page CP/M in 9 chips might be interesting - Grant has several designs there too.

Dave

On Monday, August 25, 2014 2:58:56 PM UTC-5, Don Caprio wrote:

My 11 year old son and I have been kicking around doing a
science experiment this year based on computers. We'd like
something simple that he can solder up and run simple program (basic)
on a terminal. Something simply as displaying his name, counting from
1 to a million, make lights blink, something along that line.

Obviously S100 is way beyond his ability, The Raspberry pi is an option
but it's already assembled.

Something we could breadboard and then spin up a simple PCB would be great.

What do ya think? Any ideas suggestions would be appreciated.

--
Don Caprio
ilv...@gmail.com

--
You received this message because you are subscribed to the Google Groups "N8VEM-S100" group.
To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s100+...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.