Nikos company. Nikos computers.
ZXNet echo conference «hardware.zx»
Hello, SfS
It would be interesting to find the ROM firmware from it. Otherwise I had to
half-dead Nikos, pick it out and install the standard one :(
Hello Alchemist
Alc> It would be interesting to find the ROM firmware from it. Otherwise I had to from my own
Alc> half-dead Nikos pick it out and install the standard one :(
In short, I went and looked! There really are a ton of parts from Nikos there. Plat,
microcircuits... They even prop up the legs of machine tools with them :)(:
In the evening Nikos should be fitted in the form of two boards without a housing. Two boards, one -
mother, the second - interface (disk drive, printer). I hope nothing goes wrong.
If there is a ROM in the socket, I’ll count it and post it :)
Hello, All
Today I found out that the Nikos company, which produced a ZX-compatible clone in Tomsk
a computer with a bunch of extensions (floppy drives, hard drives, memory and even something like
network card) is alive.
I called them and talked. It turns out they have (according to them) about 1000(!)
kits for assembling these Spectrums. Today I'll go take a look with my own eyes. They say
You can buy a ready-made computer without any problems. I’ll find out the prices, if it’s not too expensive -
I'll buy it :) Otherwise, my unknown clone completely burned, and the board
soldered-re-soldered...
At one time I had this Nikos-48 - a very good machine. Was
buffering of the AP5-AP6 bus is provided and so on... The only modification is
which I did for compatibility - this is the Kempston port - so that it is older 3
the bit was displayed as zero, otherwise in some places it was not auto-detected. The games all seemed to work.
Among the built-in extensions there was a port for turning off the ROM and typing in its place
lower 16K RAM. Additional video mode - colors were not encoded according to
familiar places, but along the lines. One byte of attributes per byte of pixels,
The video memory occupied exactly 12K. I modified my computer so that when
when this mode was turned on, the screen started not from #4000, but from #C000 (this is also from
done using a pair of wires).
In short - if I manage to purchase this clone, and even in the 128K modification, I will
very happy.
By the way, I don’t understand why this clone has been ignored and is not widespread.
Hello dhau
dha> Photos in the studio! And at the same time, let me know how much this farm costs -
dha> very interesting :)
There are no photos yet for obvious reasons :)
But I remember what mine looked like :)
But it looked assembled like an aluminum Laptop-type box :) And the size is approximately
the same.
The board is an ordinary yellow one, with about 80 microchip housings on it.
The coolest thing is that the case perfectly resonated with the drive when it
drove with heads. The noise was terrible :)
I would especially like to note the convenience of the system connector on the edge of the board. If you want - solder, if you want -
Clamp the board with a special connector-clamp.
Hello, SfS
Photos to the studio! And at the same time let me know how much this farm costs - very
interesting :)
--
I arrived at the field of miracles, Yakubovich is here and he’s great. That's the end of the poem
Christ is risen! [http://www.livejournal.com/users/frumich/39033.html]
Hello, SfS
Is this the same Nikos that is a converted Baltic? Then the same hunt
Look at legible photos on both sides of the scarf (especially without details). And that's it
I'm also interested in the firmware.
Hello fan
fan> Is this the same Nikos that is a converted Baltic? Then the same hunt for
fan> look at legible photos on both sides of the scarves (especially without details). And
fan> all firmware are also of interest.
There will be photos, but a little later - yesterday I arrived home only at 12 o'clock. So wait
- they will.
Hello fan
So everything is in order.
I arrived at the Nikos company. There is complete devastation in terms of repairs, but people are working.
They are now working on things far from computers - such as machine tools and so on.
They dumped me on a guy there. He tried to find Nikos, but found only
a bunch of unfinished boards. I thought everything was a bummer. But here, out of nowhere, loomed
an old lady who said that she has Nikos at home complete with a disk drive. And
she doesn’t mind giving it up for a very reasonable (although depending on how you look at it...) price.
So I went to see her in the evening. And I bought Nikos-48 with a disk drive complete with
keyboard and WTC monitor. Everything is working. The only drawback is
The synchronization was suspiciously bad. Oh well... I opened the house
case and it turned out that the transistor on which the synchro mixture is formed is soldered
on three wires, 20 cm each :) I think if you put it on the board - synchronization
will be normal. However, I'll check it today.
In short, the situation is this (according to the guy who tried to help me at the Nikos company
find a worker): everything is littered with boards and accessories; I don’t want to, but collect
there is no one to do all this. These are the tops.
Now the questions are: is it possible to plug in RU7 instead of RU5 and how is this most correct?
do? and on which ports (except 128) should I install extended memory? If there is
- ready-made diagram.
Hello, SfS
SfS> Now the questions are: is it possible to plug in RU7 instead of RU5 and how is this more correct
SfS> do everything? and on which ports (except 128) should I install extended memory?
SfS> If there is a ready-made diagram.
and x knows him there. It should be possible. Maybe you'll have to confuse the addresses so that
regenerated normally. ports - well, on 7ffd and hang it up, why not? possible 1ffd
Of course, make Scorpokaevsky.
Hello Ronin
And I’m wondering how to properly regenerate RU7 on the Baltic/Nikos. As an option
- ATAS scheme http://zx.pk.ru/showthread.php?t=1422, of course on loose
You can do it on your computer even easier (if you know how ;)).
And as far as I understand, the firmware is being cancelled?
Hello, SfS
General photo. Boards from Nikos on the desktop.
http://www.nedopc.org/nedopc/upload/Nikos_all.jpg
[http://www.nedopc.org/nedopc/upload/Nikos_all.jpg]
CPU board.
http://www.nedopc.org/nedopc/upload/Nikos_CPU.JPG
[http://www.nedopc.org/nedopc/upload/Nikos_CPU.JPG]
Interface board for drive, printer and bus buffers.
http://www.nedopc.org/nedopc/upload/Nikos_IFACE.JPG
[http://www.nedopc.org/nedopc/upload/Nikos_IFACE.JPG]
Hello fan
fan> As far as I understand, the firmware is being cancelled?
Why are they cancelled? :) the drive works there. So TR-DOS and BASIC - download
possible. All that remains is to find a 5-inch drive for the PC. So they will come later.
By the way, there are also PE3 and PT4 as far as I remember. You can also download them - I have them
I got two old unusable boards. I'll try to desolder them and drain them.
But all this is not very fast - I don’t spend much time at home now.
The only problem is the printer firmware. How not to get there without soldering the ROM
- I don’t know yet.
Hello fan
fan> And I’m wondering how to properly regenerate RU7 in the Baltic/Nikos. How
fan> option - ATAS scheme http://zx.pk.ru/showthread.php?t=1422
I looked. I didn't understand one thing. address A8 at RU7 is not used for regeneration
at all?
And are there any links to a document that explains exactly how to expand memory with RU5
on RU7 in the general case. So to speak, theory with examples?
Hello, SfS
SfS> By the way, there are also PE3 and PT4 as far as I remember. You can also download them
They are exactly what we need! And the rest too ;)
SfS> I have two old unusable boards.
Cool, urgently pick out all the little things and take legible portraits of all the headscarves
from both sides! :) Because I'm a maniac about restoring rarities in virtual form.
I was pleased with the photos, I didn’t even know what this monster looked like ;) C
I'm looking forward to continuing the photo shoot (with a higher resolution, times that way)
two :) ).
By the way, there are no diagrams from the subject??? Especially from the floppy controller???
SfS> I looked. I didn't understand one thing. address A8 at RU7 is not used for
SfS> regeneration in general ?
Well, yes ;) It’s just a beast made for all types of mikruhs :D Look on the left
pillars of rulers D21-28. Multiplexers D45 and D46 are probably intended for
regeneration RU7 and I don’t remember what (two mikruhi D29&D30) with four-bit SD.
If Ronin sends photos of ATAS, I’ll make the diagram more legible.
SfS> And are there any links to a document that explains exactly how to expand memory from
SfS> RU5 to RU7 in the general case. So to speak, theory with examples?
Alas, no.
Hello fan
fan> They are exactly what you need! And the rest too ;)
fan> Cool, urgently pick out all the little things and take legible portraits of everyone
fan> scarf on both sides! :) Because I'm a maniac about restoring rarities in
fan> virtual form.
Looking forward to the weekend. I'll take care of PT4 and PE3. I'm now inserting the working boards into the case
I'm trying.
As for “boards on both sides” - the ones I have are not worth taking pictures of -
half the price is not there.
fan> I was pleased with the photos, I didn’t even know what this monster looked like ;) C
fan> I'm looking forward to continuing the photo shoot (with a higher resolution, that way
fan> in two :) ).
This monster came with extensions - memory up to 1MB, mouse, light pen,
Winchester.... Eh... where can I get the circuits for all this now? And especially alive
that's all...
fan> By the way, there are no diagrams from the subject??? Especially from the floppy controller ???
I threw in the circuit from the processor board. Look in other topics. But from
interface board (there is a disk drive, a printer and bus buffers) - alas, there is no one yet. We are looking.
Hello Ronin
Nikos scheme.
I didn’t find it here - so here’s a new box.
The quality is not very good, but there is nothing else.
http://www.nedopc.org/nedopc/upload/nikos1.jpg
[http://www.nedopc.org/nedopc/upload/nikos1.jpg]
Hello, SfS
SfS> And are there any links to a document that explains exactly how to expand memory from
SfS> RU5 to RU7 in the general case. So to speak, theory with examples?
Well, in general, in the younger half (including a multiplexer, obviously - the same as it is there
on other addresses) addresses ru7 (a0-8) you need to push a8 of the video processor into
the highest one is additional bit_memory_1, but additional bit_memory_0 is hung back where it was cut off
a8_video processor (in the sense of not directly there, but to this address. Because cycles
different - CPU and video).
SfS> Search in neighboring topics
give me the link
PS // but in general the most beautiful thing is to make cas before ras through RFSH/MREQ. but in
On a Spectrum with one line of RAM it is easier to use a video controller.
Hello, SfS
SfS> As for the “boards on both sides” - I can’t take pictures of the ones I have
SfS> is worth it - half the price is not there.
In combination with other photos it will be just right!!! (pictures of the Baltic were
finally with soldered micros and a bunch of wires %)).
SfS> I threw the circuit from the processor board. Look in other topics. But from
SfS> interface board (there is a disk drive, a printer and bus buffers) - alas, there is no one yet.
SfS> Looking for.
Yes, I thought that all the diagrams would be included with the new Nikos :(
In general, we are waiting for a photo shoot of everything we have (with higher resolution :)), we need
that's it!!!
Hello Ronin
Ron> and in general the most beautiful thing is to use RFSH/MREQ to make cas before ras
What if I hold the reset for a couple of seconds?