Christian Gollwitzer <auriocus@gmx.de> Wrote in message:> Am 30.07.16 um 16:16 schrieb Vassilis Spiliopoulos: >> Christian Gollwitzer <auriocus@gmx.de> Wrote in message: >>> My very first (actually my father's) computer was one of those: >>> >>> https://en.wikipedia.org/wiki/NDR-Klein-Computer >>> >> Do you have any information about the schematics? Since your >> father designed it. > > Sorry, that came across in a wrong way. My father did not design that > computer. It was the first he owned for himself and was accessible to > me. He bought it as a kit, comprising board, small parts, ICs, > instruction manual... and then within a few days we soldered it > together. I learnt to code on that machine, you had to key in Z80 > machine language in hexcode. So I still remember a few opcodes :) > > Maybe you can still find the manuals somewhere online. Unfortunately, > since this was a German TV channel, I suspect that everything is in > German, unfrotunately. In particular, there is this book: > > https://www.amazon.de/Mikrocomputer-selbstgebaut-programmiert-Bauelement-fertigen/dp/3772371620 > > which decribes very similar computers. > > Best regards, > > Christian > >Oh brother... That is very unfortunate. My German language skills are terrible -- ----Android NewsGroup Reader---- http://usenet.sinaapp.com/
Computer made with a zilog chip
Started by ●July 30, 2016
Reply by ●August 19, 20162016-08-19
Reply by ●August 19, 20162016-08-19
Richard Owlett <rowlett@cloud85.net> Wrote in message:> On 7/30/2016 4:54 AM, Vassilis Spiliopoulos wrote: >> >> I am going to make a computer or at least attempt to using some >> CPU chips and breadboards. The initial idea is to link each >> output pin such as halt to a led light.And the address buses too >> and link the inputs to switches.It will be a very basic CPU unit. >> What are your thoughts on this? >> > > You might get more focused replies by describing your motivation(s). > Was there a particular Zilog of interest? If so, why? etc. > HTH > >Zilog Z80 Mainly for its comparative minor cost and compatibility to the CPU ancestral to the modern ones - the Intel 8080 -- ----Android NewsGroup Reader---- http://usenet.sinaapp.com/
Reply by ●August 19, 20162016-08-19
bitrex <bitrex@de.lete.earthlink.net> Wrote in message:> On 07/30/2016 05:54 AM, Vassilis Spiliopoulos wrote: >> >> I am going to make a computer or at least attempt to using some >> CPU chips and breadboards. The initial idea is to link each >> output pin such as halt to a led light.And the address buses too >> and link the inputs to switches.It will be a very basic CPU unit. >> What are your thoughts on this? >> > > For a one-off, use wire-wrap sockets for the ICs and wire up the > connections point-to-point under the perfboard. > > Those plastic "Radio Shack" plug-in breadboards will give you nothing > but trouble. >Hmm... I don't know what you are talking about. We don't have Radio Shack stores in my country -- ----Android NewsGroup Reader---- http://usenet.sinaapp.com/
Reply by ●August 19, 20162016-08-19
rickman <gnuarm@gmail.com> Wrote in message:> On 7/30/2016 5:54 AM, Vassilis Spiliopoulos wrote: >> >> I am going to make a computer or at least attempt to using some >> CPU chips and breadboards. The initial idea is to link each >> output pin such as halt to a led light.And the address buses too >> and link the inputs to switches.It will be a very basic CPU unit. >> What are your thoughts on this? > > This is not really the right group for that question. You might try > comp.arch.embedded for a better response and being on topic with the group. > > -- > > Rick C >Hmm. Usually this group is used for hardware related questions and answers -- ----Android NewsGroup Reader---- http://usenet.sinaapp.com/
Reply by ●August 19, 20162016-08-19
Tom Gardner <spamjunk@blueyonder.co.uk> Wrote in message:> On 02/08/16 14:48, rickman wrote: >> On 8/2/2016 9:24 AM, Randy Yates wrote: >>> herrmannsfeldt@gmail.com writes: >>>> [...] >>>> You do need to be able to program EPROMs though, or, I suppose Flash >>>> memory. >>> >>> How I miss the days of the 2732 UVEPROM and my Data I/O programmer (not >>> to mention 8085 assembly language)! That's when men were men and >>> programmers were programmers! >> >> Not old enough to have used 1702A parts, eh? > > Some things are best left in the dim recesses of memory, > until you want to show kids what a "chip" looks like. > >Doesn't the chip contain integrated memory? It will be a very basic unit using switches for 0 and 1's -- ----Android NewsGroup Reader---- http://usenet.sinaapp.com/
Reply by ●August 19, 20162016-08-19
Vassilis Spiliopoulos <vassilis@vask1lux.de> Wrote in message:> > I am going to make a computer or at least attempt to using some > CPU chips and breadboards. The initial idea is to link each > output pin such as halt to a led light.And the address buses too > and link the inputs to switches.It will be a very basic CPU unit. > What are your thoughts on this? > -- > > > ----Android NewsGroup Reader---- > http://usenet.sinaapp.com/ >Some chips contain a window for that -- ----Android NewsGroup Reader---- http://usenet.sinaapp.com/
Reply by ●August 19, 20162016-08-19
On 8/19/2016 5:59 PM, Vassilis Spiliopoulos wrote:> rickman <gnuarm@gmail.com> Wrote in message: >> On 7/30/2016 5:54 AM, Vassilis Spiliopoulos wrote: >>> >>> I am going to make a computer or at least attempt to using some >>> CPU chips and breadboards. The initial idea is to link each >>> output pin such as halt to a led light.And the address buses too >>> and link the inputs to switches.It will be a very basic CPU unit. >>> What are your thoughts on this? >> >> This is not really the right group for that question. You might try >> comp.arch.embedded for a better response and being on topic with the group. >> >> -- >> >> Rick C >> > > Hmm. Usually this group is used for hardware related questions and > answersDSP hardware perhaps. Discussing the construction of a simple home computer with a Z80 type CPU is not on topic here. -- Rick C
Reply by ●August 20, 20162016-08-20
rickman <gnuarm@gmail.com> Wrote in message:> On 8/19/2016 5:59 PM, Vassilis Spiliopoulos wrote: >> rickman <gnuarm@gmail.com> Wrote in message: >>> On 7/30/2016 5:54 AM, Vassilis Spiliopoulos wrote: >>>> >>>> I am going to make a computer or at least attempt to using some >>>> CPU chips and breadboards. The initial idea is to link each >>>> output pin such as halt to a led light.And the address buses too >>>> and link the inputs to switches.It will be a very basic CPU unit. >>>> What are your thoughts on this? >>> >>> This is not really the right group for that question. You might try >>> comp.arch.embedded for a better response and being on topic with the group. >>> >>> -- >>> >>> Rick C >>> >> >> Hmm. Usually this group is used for hardware related questions and >> answers > > DSP hardware perhaps. Discussing the construction of a simple home > computer with a Z80 type CPU is not on topic here. > > -- > > Rick C >I guess that you are right. Direct me to the proper group then. -- ----Android NewsGroup Reader---- http://usenet.sinaapp.com/
