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General Category => Amstrad CPC hardware => Topic started by: VintageAdvantage on 01:55, 16 April 21

Title: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 01:55, 16 April 21
https://youtu.be/DykFhtNbgGk (https://youtu.be/DykFhtNbgGk)

Anybody got a stock of NOS Gate Arrays somewhere?
Title: Re: RetroManCave loves JustCPC...
Post by: pelrun on 07:41, 16 April 21
Piotr is claiming in the video comments that he just got them from UTSource...

I have doubts.
Title: Re: RetroManCave loves JustCPC...
Post by: tjohnson on 11:01, 16 April 21
UTSource

You think he strip parts from actual machines?
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 11:37, 16 April 21
He had to have taken the GA's from original machines. UTSource don't offer them and there's is no known source for them anywhere else.

Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: eto on 11:57, 16 April 21
He had to have taken the GA's from original machines. UTSource don't offer them and there's is no known source for them anywhere else.

Bryce.

Not too long ago he posted a picture on Facebook with 10 (or so) 40010. It would be a pity to get them from working machines to build new working machines.

Title: Re: RetroManCave loves JustCPC...
Post by: Ygdrazil on 12:10, 16 April 21
Hi There

It's a crazy case of cannibalism if the Zaxxon dude simply takes old gatearrays and put them into new motherboards :picard: And this only  for cosmetic gains...

This stuff will not be something for me, before there is a real GA raplacement!

Just my opinion

/Ygdrazil



He had to have taken the GA's from original machines. UTSource don't offer them and there's is no known source for them anywhere else.

Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: Sykobee (Briggsy) on 14:30, 16 April 21
I thought the GA logic was decoded, so could a small FPGA or microcontroller (with enough I/O for the GA I/O including three analogue pins for RGB out to replace the tristate outputs on the GA) be used these days (counted on a compatible package)? Obviously someone would have to do the work, which is probably a bit of a pain.
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 16:50, 16 April 21
I thought the GA logic was decoded, so could a small FPGA or microcontroller (with enough I/O for the GA I/O including three analogue pins for RGB out to replace the tristate outputs on the GA) be used these days (counted on a compatible package)? Obviously someone would have to do the work, which is probably a bit of a pain.

I think it's already being worked on, but I forget who is doing it.

Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: thomas on 17:39, 16 April 21
watched RMCs video last night. Was a bit disappointed when - to the end of the video - he revealed the GA was coming from another CPC. So yes, he (Z., not RMC) seems to butcher working or at least repairable machines, unless he somehow found ten CPCs in the woods lying there for 30 years. Z. also advertised the "Just CPC 2" (a replica 464 MB) on FB, but left my question concerning the ULA unanswered ... :-(


 Here on the wiki there is a 10 pages long thread "somewhere" discussing an FPGA replacement, but I can't find it either at the moment and couldn't yet grasp it completely,  since the relevant information is scattered ...

Title: Re: RetroManCave loves JustCPC...
Post by: eto on 17:48, 16 April 21
but I can't find it either at the moment

here it is:
https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/gate-array-decapped!/

Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 18:12, 16 April 21
To the RetroCaveMan's credit, he might not know about how serious this issue of CPC
for Gate Array butchering is (and how essential these chips are to keep real CPCs working!).
Please send any leftover GA to Bryce so he can do his work!

IF the chips are from real CPCs, then I think it is a violation of the Code of Conduct for Vintage Computer Collectors, and I would have assumed that prominent figures such as RCM would be aware and more sensitive to this:

http://www.sinasohn.com/clascomp/ccccc.htm (http://www.sinasohn.com/clascomp/ccccc.htm)

But then, it is of course up to JustCPC buyers to simply swap in their own Gate Array from their real CPC. Not sure I would want to do this though.

I think the JustCPC is an impressive piece of engineering, but I also think it comes with some problems, and I would have expected a more critical and insightful discussion from the RetroCaveMan rather than just waving the Zaxon Fan Boy Flag.

Title: Re: RetroManCave loves JustCPC...
Post by: thomas on 19:17, 16 April 21
Full ack!
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 21:14, 16 April 21
Is it this one???

https://www.utsource.net/itm/p/8648279.html (https://www.utsource.net/itm/p/8648279.html)

A mislabeled / miscategorized part?? 

I have sent an inquiry for the price... it doesn't show.
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 21:42, 16 April 21
Is it this one???

https://www.utsource.net/itm/p/8648279.html (https://www.utsource.net/itm/p/8648279.html)

A mislabeled / miscategorized part?? 

I have sent an inquiry for the price... it doesn't show.

No unfortunately that's a screamingly obvious example of a chip that has been sanded down and reprinted with a part number that attracts high prices. If you are in any doubt, ask them for a picture of the whole stock and you'll see that they were all somehow produced in the same week.That example is actually worse, because they didn't even go to the bother of hiding the sanded surface.

Thanks for the recommendation above too, but to be honest, it's extremely rare that the GA is the cause of a non-working CPC. They are surprisingly robust for an ASIC. I have a "stock" of one working 40007 and 40010 which I use to confirm that that's not the issue when I am diagnosing CPC's. But I don't think I've ever had to swap one other than in cases of over-voltage.

Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 21:49, 16 April 21
Thanks for the recommendation above too, but to be honest, it's extremely rare that the GA is the cause of a non-working CPC. They are surprisingly robust for an ASIC. I have a "stock" of one working 40007 and 40010 which I use to confirm that that's not the issue when I am diagnosing CPC's. But I don't think I've ever had to swap one other than in cases of over-voltage.

That's good to hear.

Well, then these GAs that go into JustCPC are stripped from other (hopefully, not repairable) CPCs it seems.

His YouTube comments indeed mention UTSource so you are saying he is just bullshitting us, right? To the RetroCaveMan's credit, he could not have known that.

That also explains the "inquiry" process - I guess they fabricate a fake one for you on request. Like "fake on demand" or something  :D

By now, I managed to get fake GAL22V10s, SIDs, AY's, SP0256-ALs, and even Z80a's from China.  The Z80a was especially nasty, since it resulted in complete RAM destruction of the CPC. I should have known better...

Way to go!
Title: Re: RetroManCave loves JustCPC...
Post by: tjohnson on 10:42, 17 April 21
To the RetroCaveMan's credit, he might not know about how serious this issue of CPC
for Gate Array butchering is (and how essential these chips are to keep real CPCs working!).
Please send any leftover GA to Bryce so he can do his work!

IF the chips are from real CPCs, then I think it is a violation of the Code of Conduct for Vintage Computer Collectors, and I would have assumed that prominent figures such as RCM would be aware and more sensitive to this:

http://www.sinasohn.com/clascomp/ccccc.htm (http://www.sinasohn.com/clascomp/ccccc.htm)

  • I will do my damnest to find a home for any classic or unwanted computer.   
  • I will return or destroy any personal or commercially sensitive data I find on a machine I acquire, and will keep it in the strictest confidence, should I find it necessary to view it.   
  • I will aid users in the decomissioning of their machines, should they require assistance. 
  • I will respect active software and publication copyrights. 
  • I will, whenever possible, repair the computers in my collection and maintain them in working order, and will assist others in doing the same, to the best of my ability.  I will actively encourage the repair, maintenance, and use of older computers, in preference to the irreversable alteration of machines and parts for non-computer applications. 
  • I will actively promote the exchange of computers, parts, and information among collectors, and will refrain from hoarding multiple examples of any item.   
  • I will actively promote ethical collecting.
But then, it is of course up to JustCPC buyers to simply swap in their own Gate Array from their real CPC. Not sure I would want to do this though.

I think the JustCPC is an impressive piece of engineering, but I also think it comes with some problems, and I would have expected a more critical and insightful discussion from the RetroCaveMan rather than just waving the Zaxon Fan Boy Flag.


I get your point but code of conduct?  I don't like seeing good repairable computers or even working computers stripped but ultimatly if someone owns something it's their property and they can do what they like with it.  I don't agree but that's life.  I hate seeing mature trees being cut down so some dickhead can build and extension or to save them having to sweep up the leaves, I'd rather set a few plastic amstrad stripped than having decade or century old trees cut down but still it happens alot.  Sorry to rant and change subject.
Title: Re: RetroManCave loves JustCPC...
Post by: gerald on 11:21, 17 April 21
No unfortunately that's a screamingly obvious example of a chip that has been sanded down and reprinted with a part number that attracts high prices. If you are in any doubt, ask them for a picture of the whole stock and you'll see that they were all somehow produced in the same week.That example is actually worse, because they didn't even go to the bother of hiding the sanded surface.
Well, the picture is not that different from the 40010 I have on my CPCs  ;)

As a general note, may I remind you all that China is doing a good job at harvesting the pile of electronic waste we ship them for extracting the component.
While they may rewrite the references on the chip, or send a totally different IC, is not a general rule.
It's usually an effect of the reduced offer on high demand components. I don't think the 40010 is in that category yet.

Regarding the 40010 at utsource, they are clearly marked as used. So if you have  someone to blame for ripping a CPC, it's the one that ditched the CPC it came from  :D .


Title: Re: RetroManCave loves JustCPC...
Post by: pelrun on 12:14, 17 April 21
His YouTube comments indeed mention UTSource so you are saying he is just bullshitting us, right?

Before I edited it, my original comment above absolutely contained the word "bullshit".

When sending an inquiry for one of these, you should mention you're going to decap it and post photos of the insides. Wonder how long it'll be before they come back saying they no longer have any stock :D
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 17:23, 17 April 21
I get your point but code of conduct?  I don't like seeing good repairable computers or even working computers stripped but ultimatly if someone owns something it's their property and they can do what they like with it.  I don't agree but that's life.  I hate seeing mature trees being cut down so some dickhead can build and extension or to save them having to sweep up the leaves, I'd rather set a few plastic amstrad stripped than having decade or century old trees cut down but still it happens alot.  Sorry to rant and change subject.

Well, trees (and dickheads) grow back - 40010's don't  :laugh: But I see your point.  ;)
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 17:45, 17 April 21
Regarding the 40010 at utsource, they are clearly marked as used. So if you have  someone to blame for ripping a CPC, it's the one that ditched the CPC it came from  :D .

PROVIDED they are really the source of Zaxon's Gate Arrays... I am actively trying to purchase one or two of these. Maybe let's assume for now that these are indeed real working Gate Arrays from this source that Zaxon is using. But so far, my "inquiry request" for a quote has not yielded any response... we will see. In any case, there is no way that they have a stock *33951*  (yes, almost thirty four thousand!) 40010... how many old CPCs do you think have been dumped to China? That HAS to be B***S***.
Title: Re: RetroManCave loves JustCPC...
Post by: pelrun on 18:17, 17 April 21
Zaxon's history with making CPC hardware up to this point has been consistently poor. And his explanation for his source is too damn convenient, given that every other attempt by the community to find NOS GA's over the past decade or more has been a failure.
Until he provides actual proof to the contrary, I'm going to stay convinced that he deliberately ripped the chips out of working CPC's in order to sell his products, and lied about it.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 18:56, 17 April 21
He also claims that he sold > 400 JustSpeccys... which is of course an entirely different story, because the Spectrum community has a reengineered ULA (SLAM ULA). So great for him - but please stay away from our beloved CPCs and their GAs for your zombie creations - UNTIL we have an (FPGA) GA replacement for the CPC.

EDIT: It's actually more like Frankenstein creation  ;)
EDIT2:  I admire his skills - but I will not be getting a JustCPC before we have a GA replacement.
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 21:11, 17 April 21
He also claims that he sold > 400 JustSpeccys... which is of course an entirely different story, because the Spectrum community has a reengineered ULA (SLAM ULA). So great for him - but please stay away from our beloved CPCs and their GAs for your zombie creations - UNTIL we have an (FPGA) GA replacement for the CPC.

EDIT: It's actually more like Frankenstein creation  ;)
EDIT2:  I admire his skills - but I will not be getting a JustCPC before we have a GA replacement.

What skills exactly? He "copy / pastes" existing schematics together and then messes up the routing. I've repaired several of these due to one particular routing fiasco.

Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: TotO on 21:35, 17 April 21
Exactly. copy, clone, burn, no support... But peoples looks happy to deal with that.
Title: Re: RetroManCave loves JustCPC...
Post by: arkive on 12:47, 18 April 21
Seems this thread is turning into a bit of a witchhunt. Zaxxon has an account here, so perhaps it's worth slowing down a bit unless he presents his side of the story.

Personally I'm also not a big fan of people harvesting old machines for parts to build something new, if they could be repaired instead. But I'll withhold my judgement until  I hear what he has to say or there is a concrete evidence of some foolery.

As for the other, completely unrelated to the issue at hand stuff, I can only say that I've dealt with Zaxxon multiple times, his gadgets/repairs  were always solid, and he was always helpful enough. He also has 100% positive feedback both on the "Polish ebay" (allegro.pl) and also 99.9% on sellmyretro, from thousands of customers. So that's also something to consider.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 21:00, 18 April 21
Seems this thread is turning into a bit of a witchhunt. Zaxxon has an account here, so perhaps it's worth slowing down a bit unless he presents his side of the story.
...

He also has 100% positive feedback both on the "Polish ebay" (allegro.pl) and also 99.9% on sellmyretro, from thousands of customers. So that's also something to consider.

There we go again... if he wanted to do that and share his source then he should do so. We would be happy. My inquiry to UTsouce has not yielded anything. Maybe the 34000 NOS GAs are sold out by now, he bought them a few years ago ;) Maybe I'll get an email from them next week, I will keep you updated.

Besides, I think we know his side of the story and if he wanted to substantiate it he has a chance to do it here  :)   

I agree with you that some of his equipment is great, and I am using it on a daily basis as well, but that has nothing to do with this thread and topic.
Title: Re: RetroManCave loves JustCPC...
Post by: arkive on 21:54, 18 April 21
I agree with you that some of his equipment is great, and I am using it on a daily basis as well, but that has nothing to do with this thread and topic.

It does, because the thread went from the issue of harvesting parts to "he has no skills" jibes.  This thread is also 2 days young, so perhaps we should allow a bit more time for responses.

Also, while I know next to nothing about hardware repairs, I also have a feeling this might not be as clear cut as Evil Zaxon hunting poor ol' CPCs for his nefarious projects. He's well known in my neck of the woods for saving countless faulty micros (and charging very reasonable prices for it). Could be that sometimes it's more fesible to create something new than try to save the old.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 23:04, 18 April 21
It does, because the thread went from the issue of harvesting parts to "he has no skills" jibes.  This thread is also 2 days young, so perhaps we should allow a bit more time for responses.

Yes, I didn't say that though, and I didn't mean to steer the discussion into that direction. I'd appreciate if these derogatory comments be removed by the moderator.

I agree with some of what you said - after all, if somebody has a Gate Array from a spare real CPC, or a source that does not require dissassembling working (or repairable) CPCs, I have no issue whatsoever. Every (Just) CPC that get's into the hands of people is a win to the CPC community.

In the sense of community, I ask people to not sit on excessive stock piles of rare parts such as GAs though, because it will create a shortage of parts for folks seeking to repair their machines otherwise.
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 23:10, 18 April 21
Wow, nice shitstorm ;)

About ULA, link where i was order 50 pieces some time ago, https://www.utsource.net/itm/p/8648279.html ,( i can show invoices for it)  Z80 too, 8255, also UT source, d765 controlers, also in stock, AY 38912 from ebay.

What the rest, I do interfaces, sell, people are happy, I really don't have to explain anything to you. Sorry.....
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 23:20, 18 April 21
About ULA, link where i was order 50 pieces some time ago, https://www.utsource.net/itm/p/8648279.html (https://www.utsource.net/itm/p/8648279.html) ,( i can show invoices for it)  Z80 too, 8255, also UT source, d765 controlers, also in stock, AY 38912 from ebay.

Thanks, I found that link myself, and I am trying to get some of these... one has to do an "inquiry", and then they respond with a quote... or not  :) They claim to have a stock of 34000, at least THAT has to be bullshit  :) I hope they still have some, I am curious to see if maybe you got the last "real" ones, and everything else is sanded down / relabled "fake" chip, as @Bryce (https://www.cpcwiki.eu/forum/index.php?action=profile;u=225)  suggested. Will see!

Nobody asks for invoices... we are asking for a real source of REAL Gate Arrays...

UPDATE: Just logged into my UTSource account, and my "Inquiry" for the

https://www.utsource.net/itm/p/8648279.html (https://www.utsource.net/itm/p/8648279.html)

was "answered" with an offer for

https://www.utsource.net/itm/p/10287538.html (https://www.utsource.net/itm/p/10287538.html)
(for ~6 USD). This is of course not what I want. So I started another inquiry, this time with the comment that I REALLY want the

https://www.utsource.net/itm/p/8648279.html (https://www.utsource.net/itm/p/8648279.html)

and not another "40010" chip. More soon!
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 23:43, 18 April 21
My ULA working ok , and i was build over 30 new Amstrad using on it. ;) So blame me about "destroy" working machines is really funny for me. I not destroy, i build more ;)

Also, i really good remember, when i found it , 40010  i was  give info here, on CPC WIKI  about it.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 23:50, 18 April 21
My ULA working ok , and i was build over 30 new Amstrad using on it. ;) So blame me about "destroy" working machines is really funny for me. I not destroy, i build more ;)

I am very glad to hear that! Now let's hope that they still have some more 40010 for other users too... I will keep you updated.
You have to understand though that if you WERE the only one capable of aquiring real working 40010's from that source that it raised some suspicion...
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 00:21, 19 April 21
I have been repairing computers for many years. I have years of practice and contacts in finding and acquiring "out-of-date" parts. Example. When we needed a ULA for the ZX Spectrum, Mark sat down and designed it. I assemble them, I make them, and we have them. Similarly with the processor replacement for the Commodore +4. A few days ago I bought ULA replacements for ORICA in Bulgaria. Everything can be bought. Well, some people prefer to jump on my back in the forum instead of doing your job and making some nice interface  ;D 
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 00:27, 19 April 21
When we needed a ULA for the ZX Spectrum, Mark sat down and designed it.

Folks the redesign / reengineer ULAs / Gate Arrays have my highest admiration. We really need something along the lines of the JustSpeccy SLAM ULA for the CPC. It seems a great deal of progress has been made along the lines here:

https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/gate-array-decapped!/ (https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/gate-array-decapped!/)

Unfortunately, I lack the skills and knowledge to understand why this is still not available to CPC users, or what the current road blocks are that prevent it from being available. 
Title: Re: RetroManCave loves JustCPC...
Post by: Skunkfish on 23:55, 19 April 21
I believe what happens is, some of the 3 million Amstrad CPC's that have been have found their way to the far east for 'recycling'.
The boards are then stripped of their components and these find their way onto UTsource as used. So, it's not really the stripping of 'working' CPC's, more the rescuing of parts from scrap.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 00:13, 20 April 21
I believe what happens is, some of the 3 million Amstrad CPC's that have been have found their way to the far east for 'recycling'.
The boards are then stripped of their components and these find their way onto UTsource as used. So, it's not really the stripping of 'working' CPC's, more the rescuing of parts from scrap.

Yes, maybe, maybe not  :)
So far I haven't gotten a GA quote.. whenever I request a quote, they come back after 12 hours with a link to the Bosch 40010 which is of course useless.
https://www.utsource.net/itm/p/10287538.html (https://www.utsource.net/itm/p/10287538.html)

I then request another quote telling them that I REALLY want the

https://www.utsource.net/itm/p/8648279.html (https://www.utsource.net/itm/p/8648279.html)

but they either don't speak English or they don't understand, because 12 hours later they come back yet again with the BOSCH 40010.

I have played this ping pong game 3 times by now. Anybody else wanna try?

So, no luck so far  ;D
The first person than can get a real 40010 GA from UTsource (verified) gets a price from me.

I guess what happened is - Zaxon got all of the remaining GAs 5 years ago, and that was it. Now every body has to fit the BOSCH 40010 into their CPC  :laugh: You can get the BOSCH GA for ~ 7 $ though, good deal  ;)
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 09:46, 20 April 21
I believe what happens is, some of the 3 million Amstrad CPC's that have been have found their way to the far east for 'recycling'.
The boards are then stripped of their components and these find their way onto UTsource as used. So, it's not really the stripping of 'working' CPC's, more the rescuing of parts from scrap.

So you think that random CPC's discarded from different households around the UK/EU (mainly during a time when electronics went to landfills) somehow managed to all end up at the same Chinese component recycling company?

McBryce.
Title: Re: RetroManCave loves JustCPC...
Post by: revaldinho on 10:28, 20 April 21
Here's another possible 40010 source via a UK Electronics company


https://www.ellison-electronics.com/partner-search?part=amstrad&Submit1=Search#Start


.. with a couple of thousand available through their partner network according to the search.



Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 11:02, 20 April 21
.. with a couple of thousand available through their partner network according to the search.

Wow... they must be kidding... somebody try and order some please :-) Maybe they get their stuff from UTsource umm BOSCH  :D
Title: Re: RetroManCave loves JustCPC...
Post by: TotO on 11:23, 20 April 21
While there is not a price, it is just a part listing... The quantity and availability status are fake.
Title: Re: RetroManCave loves JustCPC...
Post by: Skunkfish on 11:27, 20 April 21
So you think that random CPC's discarded from different households around the UK/EU (mainly during a time when electronics went to landfills) somehow managed to all end up at the same Chinese component recycling company?

McBryce.
Disgarded Electronics from Europe and the States have been exported to developing countries for decades.... I'm sure there's some specific channels that these chips go through to end up on UTsource.

https://www.bbc.co.uk/news/world-europe-10846395 (https://www.bbc.co.uk/news/world-europe-10846395)
https://www.pbs.org/newshour/science/america-e-waste-gps-tracker-tells-all-earthfix (https://www.pbs.org/newshour/science/america-e-waste-gps-tracker-tells-all-earthfix)
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 11:49, 20 April 21
Disgarded Electronics from Europe and the States have been exported to developing countries for decades.... I'm sure there's some specific channels that these chips go through to end up on UTsource.

https://www.bbc.co.uk/news/world-europe-10846395 (https://www.bbc.co.uk/news/world-europe-10846395)
https://www.pbs.org/newshour/science/america-e-waste-gps-tracker-tells-all-earthfix (https://www.pbs.org/newshour/science/america-e-waste-gps-tracker-tells-all-earthfix)

I've been buying components from UTSource for many years. Almost everything I've bought from them was surplus stock that they had bought from manufacturing companies inside China. I'm not sure that they deal with any "real recycled" parts.


Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 18:20, 20 April 21
Well, in a last attempt I actually contacted them via email explaining in detail again and again what I want and what I do not want (the BOSCH), providing the links to what I want and what I do not want, so EVERYBODY even with minimal English understanding would be able to understand it - this morning I found an email saying that my quote was ready! Imagine my surprise when I logged into my UTsource account to look at my UTsource inquiry / quotation inbox to find.... the BOSCH 40010   :laugh: I am giving up now.
Title: Re: RetroManCave loves JustCPC...
Post by: GUNHED on 18:46, 20 April 21
Well, the result is more clear and obvious than ever before now. Thanks for trying everything.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 18:48, 20 April 21
Well, the result is more clear and obvious than ever before now. Thanks for trying everything.     

Well, the next step would be to try @revaldinho (https://www.cpcwiki.eu/forum/index.php?action=profile;u=1776) source

https://www.ellison-electronics.com/partner-search?part=amstrad&Submit1=Search#Start (https://www.ellison-electronics.com/partner-search?part=amstrad&Submit1=Search#Start)

But I am a bit frustrated now, maybe somebody else with an account there can try.
Title: Re: RetroManCave loves JustCPC...
Post by: GUNHED on 19:21, 20 April 21
Yes, let's hope for the best.  :) :) :)
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 19:31, 21 April 21
Hmm, so i do magic... i buy working CPC on Ebay or somewhere for 100-200 GBP plus postage costs . Later i  dissasembly working computer for parts, . In next day i assembly  and sell full working Just CPC2  board for 150 GBP... Really , good buissnes for me ;) 


Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 21:50, 21 April 21
Hmm, so i do magic... i buy working CPC on Ebay or somewhere for 100-200 GBP plus postage costs . Later i  dissasembly working computer for parts, . In next day i assembly  and sell full working Just CPC2  board for 150 GBP... Really , good buissnes for me ;)
Well, I didn't say that (besides, CPC hardware business has always been a red number business for me - overall, never made a single dollar, not even close to hardware development costs by selling stuff). Just saying that your UTsource doesn't work for me. Maybe they are out of stock by now. As I suggested - let's try @revaldinho (https://www.cpcwiki.eu/forum/index.php?action=profile;u=1776) 's source, but I am out of patience for now, I tried numerous times to no avail. Maybe they don't sell to US customers  :) Who knows! At least, my impression is that the NOS 40010 GA's are not available to everyone... to put it that way.

I am sure pretty soon somebody will show up here telling us that she / he too was able to get NOS 40010's on UTsource and other channels. These thinks usually happen on the CPC Fakebook channel. It's unfortunate (for myself) that this person won't be me though it seems. I could really use a 40010 - but not from BOSCH  :'(
Title: Re: RetroManCave loves JustCPC...
Post by: Skunkfish on 22:34, 21 April 21
I made an inquiry at Ellison Electronics a few days ago regarding the 40010, but they've not responded at all...
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 00:22, 22 April 21
I made an inquiry at Ellison Electronics a few days ago regarding the 40010, but they've not responded at all...

They have to reach out to Zaxon first, he has all the NOS GA's :P You gotta give them some time.  Well, at least they are not trying to screw you over by giving you some random other (BOSCH) 40010! That's a good sign actually.  ;D
Title: Re: RetroManCave loves JustCPC...
Post by: pelrun on 09:22, 22 April 21
Hmm, so i do magic... i buy working CPC on Ebay or somewhere for 100-200 GBP plus postage costs . Later i  dissasembly working computer for parts, . In next day i assembly  and sell full working Just CPC2  board for 150 GBP... Really , good buissnes for me ;)
And sell the now non-working CPC on Ebay to make the profit, because we know even those fetch stupidly high prices these days. Still unconvinced.
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 09:44, 22 April 21
My UT Source order ...One from few...And yes, i know, you say, is fake... :picard:
Title: Re: RetroManCave loves JustCPC...
Post by: TotO on 11:25, 22 April 21
They have to reach out to Zaxon first, he has all the NOS GA's :P
Piotr has found the 40010 on this website (like some Amiga peoples have found Paula on it, and more), because I have asked if they can try to source those unlisted circuits. UtSource has added next the Amstrad 40010 references and I was able to order ten of them to fix some CPC. Piotr got the opportunity to order them while it was available.
Title: Re: RetroManCave loves JustCPC...
Post by: TotO on 11:31, 22 April 21
My UT Source order ...
You have payed them expensive... It was around 9$ for the Gate Array and 5$ for Paula in 2014/2015.  :(
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 19:44, 22 April 21
UtSource has added next the Amstrad 40010 references and I was able to order ten of them to fix some CPC.

And that was - when? Can you try again to get a quote please? If you still have the account. Just make sure they are not giving you the Bosch 40010...
Title: Re: RetroManCave loves JustCPC...
Post by: TotO on 20:14, 22 April 21
And that was - when? Can you try again to get a quote please? If you still have the account. Just make sure they are not giving you the Bosch 40010...
It was more than 5 years ago.
Last year, I have asked a quotation again because no more price was displayed for the Amstrad 40010 IC and I have received a quotation for the Bosh 40010 IC too...
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 22:01, 22 April 21
It was more than 5 years ago.
Last year, I have asked a quotation again because no more price was displayed for the Amstrad 40010 IC and I have received a quotation for the Bosh 40010 IC too...
So Zaxon's (UT)source has run dry in the last 4 years... wondering on how many GA's he is sitting for his JustCPCs...
Title: Re: RetroManCave loves JustCPC...
Post by: TotO on 22:07, 22 April 21
wondering on how many GA's he is sitting for his JustCPCs...
As many as CPCs that can no longer be repaired.
Title: Re: RetroManCave loves JustCPC...
Post by: tjohnson on 22:13, 22 April 21
Hmm, so i do magic... i buy working CPC on Ebay or somewhere for 100-200 GBP plus postage costs . Later i  dissasembly working computer for parts, . In next day i assembly  and sell full working Just CPC2  board for 150 GBP... Really , good buissnes for me ;)



Why did you pay 100gbp or more?  plenty of 464 on the last go for 25 maybe less. I haven't looked in a while but it was easy to grab them for still little money only a shortwhile ago.
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 00:22, 23 April 21
Well, btw, i have also oryginal  NOS HAL ram controller for 6128 ;) Approx 50 pieces in my storage ;) 


Title: Re: RetroManCave loves JustCPC...
Post by: tjohnson on 01:08, 23 April 21
Well, btw, i have also oryginal  NOS HAL ram controller for 6128 ;) Approx 50 pieces in my storage ;)


I think the original question in the debate was where did you get your 40010 gate arrays from for all the justcpc you sold.  How many did you buy and where from.   For example did you get them by taking them from actual cpc machines or did you buy them NOS from another supplier.  Maybe you answer that question and I didn't see it.
Title: Re: RetroManCave loves JustCPC...
Post by: GUNHED on 03:16, 23 April 21
Why did you pay 100gbp or more?  plenty of 464 on the last go for 25 maybe less. I haven't looked in a while but it was easy to grab them for still little money only a shortwhile ago.


From one of my personal files...


How much does CPC464 cost in Ebay / Germany?



Amstrad / Schneider CPC 464, nur Computer, ohne Monitor
-   2019.10.26: 57,50 Euro
-   2019.12.17: 61,00 Euro
-   2019.12.07: 41,50 Euro
-   2020.01.12: 83,00 Euro (funktioniert, mit Vortex SP512 - BOS 2.1 RAM Erweiterung)
-   2020.03.31: 182 Euro (funktioniert, mit DDI-1 + 3,5“ Floppy, Disks, Joystick, TV-Kabel)
-   2020.04.05: 87 Euro (Tape Play Taste defekt)
-   2020.04.07: 42,50 Euro (funktioniert)
-   2020.04.07: 45,50 Euro (funktioniert)
-   2020.04.08: 45,50 Euro (LED geht an)
-   2020.04.12: 112 Euro (funktioniert, neuer Tape-Riemen)
-   2020.05.02: 53 Euro (mit eingebauter serieller Schnittstelle, Tastaturabdeckung)
-   2020.05.03: 83 Euro
-   2020.05.08: 25,50 Euro (ungetested)
-   2020.05.10: 81 Euro (funktioniert)
-   2020.05.10: 61 Euro (funktioniert, neue Riemen)
-   2020.05.15: 94 Euro (funktioniert)
-   2020.05.17: 99 Euro (funktioniert, Handbuch, Pascal-Box)
-   2020.05.17: 57 Euro (Originalverpackung)
-   2020.05.28: 126 Euro (mit DDI-1 und 3“ Floppy)
-   2020.05.31: 103 Euro (LED leuchtet)
-   2020.06.08: 40,50 Euro (funktioniert, CAPS-Taste fehlt)
-   2020.06.13: 107 Euro (funktioniert, neuer Riemen, Netzteil, Handbuch,  Demo-Tape)
-   2020.06.14: 152 Euro (funktioniert, neuer Riemen)
-   2020.06.16: 36,50 Euro (ungetestet)
-   2020.06.21: 86 Euro (LED leuchtet)
-   2020.07.12: 93 Euro (funktioniert, Vortex 512 KB BOS 2.0)
-   2020.07.14: 53 Euro (ungetestet)
-   2020.09.06: 104 Euro (2x Tastatur, ungetestet)
-   2020.09.13: 67,50 Euro (funktioniert, Vortex 512 KB Erweiterung, drei Handbücher)
-   2020.09.13: 51 Euro (funktioniert, neuer Kassettenriemen)
-   2020.10.11: 72,60 Euro (funktioniert, neuer Kassettenriemen)
-   2020.10.18: 68,30 Euro (ungetestet)
-   2020.10.25: 85,60 Euro (funktioniert, neuer Kassettenriemen, mit Verpackung)
-   2020.11.01: 60 Euro (ungetestet)
-   2020.11.01: 93 Euro (nur 464 Platine, mit Data Media Speichererweiterung SP64)
-   2020.11.08: 101 Euro (funktioniert, neuer Kassettenriemen)
-   2020.11.13: 72,90 Euro (ungetestet)
-   2020.11.22: 76 Euro (ungetestet, 6 Kassetten)
-   2020.11.22: 86,50 Euro (funktioniert, neuer Kassettenriemen)
-   2020.11.26: 77 Euro (defekt, mit MP1 TV Modulator)
-   2020.12.06: 41,50 Euro (funktioniert, Data-Becker Buch CPC)
-   2020.12.06: 101 Euro (funktioniert, neuer Kassettenriemen)
-   2020.12.13: 124 Euro (funktioniert, OVP Tastatur, 1 Buch, 1 Spiel)
-   2020.12.20: 86 Euro (funktioniert, neuer Kassettenriemen)
-   2020.01.03: 71 Euro (funktioniert, neuer Kassettenriemen)
-   2021.01.09: 45 Euro (funktioniert)
-   2021.01.09: 44,50 Euro (ungetestet)
-   2021.01.12: 55 Euro (ungetestet)
-   2021.01.17: 66 Euro (funktioniert, Tape ohne Plastikscheibe, Zählwerk defekt)
-   2021.01.23: 112 Euro (funktioniert, neuer Kassettenriemen, SCART-Kabel, Netzteil, 10 Spiele auf Kassette)
-   2021.01.24: 57,80 Euro (ungetestet)
-   2021.01.26: 38,50 Euro (defekt, vermutlich RAM)
-   2021.01.29: 99 Euro (funktioniert, restauriert)
-   2021.01.31: 52,50 Euro (CPC funktioniert, Tape defekt, DEL durch ESC Taste ersetzt)
-   2021.01.32: 62 Euro (funktioniert, neuer Kassettenriemen)
-   2021.02.01: 45,50 Euro (defekt, vermutlich RAM Chip)
-   2021.02.13: 46,60 Euro (CPC funktioniert, Tape defekt)
-   2021.02.19: 98 Euro (funktioniert, + weiteter CPC mit defektem Tape)
-   2021.03.05: 44 Euro (defekt)
-   2021.03.19: 55 Euro (ungetestet)
-   2021.03.20: 76 Euro (funktioniert, Handbuch,  3x Schneider Silberboxen Software auf mit Kassetten, z.B. Easy Top Calc)
-   2021.03.24: 56 Euro (ungetestet)
-   2021.03.28: 45,50 Euro (CPC funktioniert, Tape ungetestet)
-   2021.04.01: 69 Euro (funktioniert, Handbuch, 4 Kassetten)
-   2021.04.04: 53 Euro (ungetestet)
-   
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 09:23, 23 April 21
Wow, nice record / journal...  8)
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 09:25, 23 April 21
Quote from: piotr
Well, btw, i have also oryginal  NOS HAL ram controller for 6128 (https://www.cpcwiki.eu/forum/Smileys/SoLoSMiLeYS1/wink.gif) Approx 50 pieces in my storage (https://www.cpcwiki.eu/forum/Smileys/SoLoSMiLeYS1/wink.gif) 

And how many GA's 40010 do you have "in stock"?
Title: Re: RetroManCave loves JustCPC...
Post by: arkive on 12:15, 23 April 21
It must be a lot of fun waving these pitchforks around, they seem to be hard to put down.

This thread really is quite something, even when judged by usual standards of pointless retro-drama.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 16:38, 23 April 21
Well, btw, i have also oryginal  NOS HAL ram controller for 6128 (https://www.cpcwiki.eu/forum/Smileys/SoLoSMiLeYS1/wink.gif) Approx 50 pieces in my storage (https://www.cpcwiki.eu/forum/Smileys/SoLoSMiLeYS1/wink.gif)   

And how many GA's 40010 do you have "in stock"?  Would you mind selling 2 or 3 to me, for repairing some CPCs? Please PM me if so, thanks!  I would put the repaired CPCs on Ebay for reasonable price, so it would benefit the community.
Title: Re: RetroManCave loves JustCPC...
Post by: GUNHED on 22:11, 23 April 21
It must be a lot of fun waving these pitchforks around, they seem to be hard to put down.

This thread really is quite something, even when judged by usual standards of pointless retro-drama.

Well, let me explain that to you. Of course the great CPC contains many standard components for reliability and availability. But it also has some great custom chips for its absolute power. One of them it Garry the Gate Array, also called 40010 in CPC6128 for example.

Now what we try to find out here is: Are these Amstrad 40010 custom chips available somewhere - and this means without taking them from CPCs themselves.
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 23:01, 23 April 21
Ok, well...I can open web shop with rare  parts for Amstrad. I have lot. But problem will be back ;) in next shitstorm .Becouse if China man sell 40010 , we  say this,  is good, we have source of components. But .... if i start selling it,  will be bad. People start screaming Piotr (Zaxon) trying do profit on community !!!  Let's burn him at the stake. Who has the pitchfork?
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 00:17, 24 April 21
Ok, well...I can open web shop with rare  parts for Amstrad. I have lot. But problem will be back ;) in next shitstorm .Becouse if China man sell 40010 , we  say this,  is good, we have source of components. But .... if i start selling it,  will be bad. People start screaming Piotr (Zaxon) trying do profit on community !!!  Let's burn him at the stake. Who has the pitchfork?
Well let's see it that way - since you are already the bad guy of the CPC community  :laugh: what do you have to lose?  8) It can only get better!  :D Just sell us your NOS components and no shit will storm anymore  :laugh: Just kidding. 
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 00:46, 24 April 21
SorrSorry, im busy, delivery was... Let's dissasembly it....
Title: Re: RetroManCave loves JustCPC...
Post by: pelrun on 08:37, 24 April 21
It's hardly pitchforks; such a situation is going to be controversial regardless of who did it, and a robust discussion here is entirely reasonable. We're not actively trying to drag him through the mud elsewhere, and it was entirely Piotr's choice to engage here.
Extraordinary claims need extraordinary proof after all, and it seems like Piotr has supplied enough. Only to then deliberately raise doubts about his own honesty, which was entirely unnecessary. Don't go complaining about your poor reputation when you actively sustain it, FFS.
Title: Re: RetroManCave loves JustCPC...
Post by: Gryzor on 08:51, 24 April 21
Early riser? 😀
Title: Re: RetroManCave loves JustCPC...
Post by: arkive on 13:52, 24 April 21
robust discussion
:laugh:

You've been slinging mud from the beginning of this witchhunt thread, then ended up with egg on your face, and yet still insist on doing so. That's the only "extraordinary" thing here.

Smh. Time to take a break from this toxicity, good thing it's spring out there...
Title: Re: RetroManCave loves JustCPC...
Post by: pelrun on 14:37, 24 April 21
I started this conversation saying only "I have doubts." And Piotr obviously enjoys jerking us around. Not knowing exactly how big a jackass he's being is hardly "egg on my face".
But you've obviously decided you know everything. Must be nice.
Title: Re: RetroManCave loves JustCPC...
Post by: villain on 14:50, 24 April 21
I'm bored...
Title: Re: RetroManCave loves JustCPC...
Post by: zhulien on 07:37, 25 April 21
I think it is a bit sad so many people critical of taking an existing gate array chip.  Offering such a board gives us choices, we can buy it or not but I'd rather the choice of such a board than not.  Ideally no keyboard membrane issue alternative form factor modern components...
Title: Re: RetroManCave loves JustCPC...
Post by: TotO on 11:05, 25 April 21
Ok, well...I can open web shop with rare  parts for Amstrad. I have lot. But problem will be back ;) in next shitstorm .Becouse if China man sell 40010 , we  say this,  is good, we have source of components. But .... if i start selling it,  will be bad. People start screaming Piotr (Zaxon) trying do profit on community !!!  Let's burn him at the stake. Who has the pitchfork?
I have sold cpc parts through centpourcent.net at the price I have bought them during years. No problem with that, while it is for the interrest of the community and not to make profits. Each peoples contribute on his free time by doing games, demo, tools, website, ... To avoid "unknown" peoples abusing about custom parts quantity, it is simple to ask them to ship the defective one to be eligible to get them.
Title: Re: RetroManCave loves JustCPC...
Post by: zhulien on 11:32, 25 April 21
What would be good is if someone made cpc and plus to tower conversion kits with everything but the psus and tower. All extension cables ps2 keyboard adapter gotek or 3.5" drive cables etc... from my experience I have more good cpc main boards than keyboards drives etc.


Rescuing individual chips is a good thing and making new cpc boards even if butchering old cpcs is still better than having older unreliable or partially dead cpcs if it keeps another member of the community active.


I cant wait for Toto's new cpc... please send me one!!! Hurry  :)
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 19:19, 25 April 21

Toto, but I do the same. I moved to Poland 3 years ago. Amstrad is not very popular here but I am trying to change it.  :D
Unfortunately, here I operate as a company, so it is associated with many obligations. VAT, taxes, business license, environmental fees and many other things that I have to pay for. I am very happy to sell someone a part at cost ... But then regulations and bureaucrats come in and I have to explain it.
Well, the law requires me to add costs and the € 1 item becomes € 20 inc TAX, VAT, shipping. It's really not my fault.

In addition, during the last 6 years of my activity ... I have sold over 1000 disk drive emulators in various versions for Amstrad. I think thanks to this many users have come back and are using Amstrad again. It's rather good ?

I am mischievous and ironic when replying to posts ? Well, well, what I get is what I give back. ;D 
Title: Re: RetroManCave loves JustCPC...
Post by: Duke on 21:16, 25 April 21
I am mischievous and ironic when replying to posts ? Well, well, what I get is what I give back.
Or maybe it is "what you give, is what you get back" ? - self reflection!
Title: Re: RetroManCave loves JustCPC...
Post by: Gryzor on 10:10, 26 April 21
Hands up anyone who thinks this thread contributes something new as it is...
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 17:55, 26 April 21
Hands up anyone who thinks this thread contributes something new as it is...

I am not sure what your intent of asking such a question is. Are you trying to "moderate" something here, close the thread, tell people to close the thread, ... something else?

Currently, this thread doesn't require moderation, and we are still figuring out how to source Gate Arrays. Btw, previously this thread did require moderation, when some derogatory comments have been made by MODERATORS and other well-known members, but the only one that ended up in the HOS was me, pointing that out. So, in this forum, it still matters more WHO says something rather than what is being said.  Anyhow.

But since you asked for it - yes, there is an interesting update here.

I actually managed to get a quote for the AMSTRAD 40010 from UTSource.
*After* having paid,  I then received a cancelation and reimbursement. 2 days later. Invoice cancelation and reimbursement email attached.

So, the source is dry. Anybody had success with the second source from @revaldinho (https://www.cpcwiki.eu/forum/index.php?action=profile;u=1776) ?

So yes, @Gryzor (https://www.cpcwiki.eu/forum/index.php?action=profile;u=1) please keep the thread open.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 01:25, 27 April 21
Well, well, what I get is what I give back. ;D 

Well, I hope not, because otherwise you will be getting Tantalum capacitors installed incorrectly in your CPC extension hardware (and those get very hot before they blow up), and no support - just saying :P
But that was years ago so let's just forget about it and start fresh  :) I hope you don't mind the humorous anecdote from the past, I couldn't resist.
Title: Re: RetroManCave loves JustCPC...
Post by: RetroCPC on 03:49, 27 April 21

Unfortunately, here I operate as a company, so it is associated with many obligations. VAT, taxes, business license, environmental fees and many other things that I have to pay for.

Well, the law requires me to add costs and the € 1 item becomes € 20 inc TAX, VAT, shipping. It's really not my fault.


While in China......

How can companies in Europe compete with China when we dont have a level playing field??? !

Piotr - I feel for you!
Title: Re: RetroManCave loves JustCPC...
Post by: zhulien on 05:26, 27 April 21
is there a reason a GODIL FPGA cannot be used?


http://www.oho-elektronik.de/ (http://www.oho-elektronik.de/)


Yes, a bit expensive for the purpose, but perhaps it can be enhanced with new gfx modes etc and other things?  ASIC functionality? v9990 functionality? perhaps a new better custom hardware sprites functionality and SID emulation?  really no limits is there?


Since there are Amstrad CPC cores in FPGA already, shouldn't it be fairly easy to pull out the GA logic of those and map them into the GODIL FPGA?
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 10:00, 27 April 21
GODIL isn't an FPGA it's a dev board with a Spartan 3 FPGA on it. What exactly is the advantage of using this exact board?

Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 17:53, 27 April 21
What would be good is if someone made cpc and plus to tower conversion kits with everything but the psus and tower.

Personally, I really dislike all "after market re-housing" kits. Like these terrible things that put an Amiga 500 board in an ugly, badly designed, wimsy and cheap looking plastic tower. With tons of wobbely shakey adapters to pimp the thing up and patch things together. Extra blinds, screws that don't really fit, and maybe some plastic cutting involved to forcefully fit the thing in. Horrible.  Efectively destroys all character and signature of the original designs.

It's like taking a nicely designed car strip the motor out and put it in a plastic box with wheels to get some extra space inside.

I can see the point of a big "expansion box interface" for the CPC - 8 MX4 slots, PSU, decent housing. But please keep the CPCs as they are :-)
Title: Re: RetroManCave loves JustCPC...
Post by: zhulien on 18:10, 27 April 21
GODIL isn't an FPGA it's a dev board with a Spartan 3 FPGA on it. What exactly is the advantage of using this exact board?

Bryce.


The purpose is multiple, it is to make an FPGA solution that fits into a standard DIL socket.  It can plug into a 6502, a Z80, and of course likely the Gate Array also (their sockets I mean) - of course you have to make your core for it.


Ice T runs on it already - some Spectrums will run fine, some won't.  Not sure if CPC will be hit and miss also.


FPGA is really a modern version of a GA which we can program ourselves.
Title: Re: RetroManCave loves JustCPC...
Post by: revaldinho on 22:21, 27 April 21
The GODIL's a good idea for prototyping. It's definitely large enough and the 40 pin DIL footprint, 5V level shifters and clever system of power/ground jumpers make it potentially a plug-in replacement for most 40 pin ICs. Unfortunately I'm pretty sure that board has been out of production for quite a while now, so it's not a long term solution.


As it happens, I have got one which @bigEd and I used many years ago to reimplement the Acorn Tube IC and run in a BBC Master. It has a broken pin frame, so I need to repair or replace that but it's definitely a candidate for trying out the MiST GA reimplementation.







Title: Re: RetroManCave loves JustCPC...
Post by: zhulien on 08:30, 28 April 21
The GODIL's a good idea for prototyping. It's definitely large enough and the 40 pin DIL footprint, 5V level shifters and clever system of power/ground jumpers make it potentially a plug-in replacement for most 40 pin ICs. Unfortunately I'm pretty sure that board has been out of production for quite a while now, so it's not a long term solution.


As it happens, I have got one which @bigEd and I used many years ago to reimplement the Acorn Tube IC and run in a BBC Master. It has a broken pin frame, so I need to repair or replace that but it's definitely a candidate for trying out the MiST GA reimplementation.


https://github.com/hoglet67/AtomBusMon/wiki/ICE-T80
https://www.xcharitybox.com/index.php?main_page=product_info&products_id=263439
http://www.oho-elektronik.de/pics/UM_GODIL.pdf


If an FPGA is in general good for general computing (Terasic T-Rex, Mister, Vampire cards), then why would it be not so good for prolonged use in a CPC if the packaging of the FPGA suited the CPC (such as a GODIL)?


I am sure that other's here could make a small Z80 piggypack card more suited and better priced than GODIL too - I think it is a very worthwhile way to replace the Z80 as well as the existing Gate Array.  Make a Super Gate Array or... support HDMI natively with edge to edge picture more colours etc in all modes?
Title: Re: RetroManCave loves JustCPC...
Post by: revaldinho on 15:19, 28 April 21
Quote
If an FPGA is in general good for general computing (Terasic T-Rex, Mister, Vampire cards), then why would it be not so good for prolonged use in a CPC if the packaging of the FPGA suited the CPC (such as a GODIL)?


I'm not arguing against using FPGAs to build CPC components.  I'm just saying that the GODIL board specifically is not in production anymore and hasn't been for quite some time now.


It's not available for sale new, but if you can find one somewhere then, yes, it's almost ideal for proof-of-concept type work in emulating old chips because it can plug right into a 40 DIP socket without modification.


Once you're satisfied that the code works on the GODIL you'd need to port it to a new FPGA board if you want to make it more widely available. So, good for prototyping if you have one, but not a long-term solution for hard-to-find gate arrays or other vintage peripherals.





Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 22:52, 30 April 21
Uff,  nice evening...  Let's dissasembly some brand new GX 4000 from my attic and  recover few  ULA for CPC PLUS ;)  Cash $$$$$$$  waiting  ;D
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 00:03, 01 May 21
I do what I can . Thanks for motivating me to further work. :) 
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 11:45, 01 May 21
Uff,  nice evening...  Let's dissasembly some brand new GX 4000 from my attic and  recover few  ULA for CPC PLUS ;)  Cash $$$$$$$  waiting  ;D

You're not doing yourself any favours with posts like this. Next time you wonder why people treat you like they do, come back and re-consider your actions here.

Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: rexbeng on 14:27, 01 May 21
I believe Piotr is being sarcastic with his 'gx4000 massacre' post. :)
Say, in search of CRTC, I stumbled upon this. Wasnt it used in KCC's?  https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=HD6845P&_sacat=159680
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 15:25, 01 May 21
I believe Piotr is being sarcastic with his 'gx4000 massacre' post. :)
Say, in search of CRTC, I stumbled upon this. Wasnt it used in KCC's?  https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=HD6845P&_sacat=159680 (https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=HD6845P&_sacat=159680)

The 6845 is the CRT chip used in the CPC too. They are extremely common and still easy to find as they were also the chip used for almost every CGA card too.

Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: rexbeng on 15:31, 01 May 21
So, the 40010 was a CPC only thing, then? Wasnt it used in any other computer/component?
Title: Re: RetroManCave loves JustCPC...
Post by: Bryce on 16:54, 01 May 21
The 40007, 40008 and 40010 are custom chips that Amstrad had made to reduce the chip count in the CPC. It's not a general purpose chip.

Bryce.
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 17:02, 02 May 21
Next beatifull weekend, next Amstrad boards  arrived and waiting  for dissasembly of course ....  :picard:   ....

Yes , i'm ironic and sarcastic. ;)

Also i extend my offer.  I painlessly remove the poles in your asses  ;D




Title: Re: RetroManCave loves JustCPC...
Post by: zhulien on 18:09, 02 May 21
Uff,  nice evening...  Let's dissasembly some brand new GX 4000 from my attic and  recover few  ULA for CPC PLUS ;)  Cash $$$$$$$  waiting  ;D


Actually if you got them for $10 each back in the day, you could still profit doing that. 
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 19:12, 02 May 21
Uff,  nice evening...  Let's dissasembly some brand new GX 4000 from my attic and  recover few  ULA for CPC PLUS ;)  Cash $$$$$$$  waiting  ;D
I actually don't care what you do with GX 4000s. I don't even consider that a CPC or worth preserving. Just haul them to the dump. I don't know what folks like about them. The GX 4000 is such a bad piece of gear... emberassing that Amstrad ever came up with that. Honestely, what were they thinking... being that late to the game with that kind of hardware. The whole thing has zero appeal to a computer hobbyist who needs a keyboard and BASIC, and minus one appeal to a gamer in 1990. What were they thinking.  :picard2:
Title: Re: RetroManCave loves JustCPC...
Post by: Gryzor on 19:24, 02 May 21
Oh wow someone realized what the rest of us realized 30 years ago, just wow.

Still for one reason or the other we may like it. What we don't like it's self righteous guys dissing others, so if you feel so strongly you can keep it to yourself.
Title: Re: RetroManCave loves JustCPC...
Post by: VintageAdvantage on 19:29, 02 May 21
Still for one reason or the other we may like it. What we don't like it's self righteous guys dissing others, so if you feel so strongly you can keep it to yourself.

Dude, why don't you s*** u* and just bann me to the HOS, that's the only contributions you are making recently to YOUR :D forum.

What makes you think that YOU speak for the CPC community and feel entiteld to say what WE THE CPC COMMUNITY like AND DO NOT LIKE? Please enlighten us.
Title: Re: RetroManCave loves JustCPC...
Post by: Gryzor on 19:31, 02 May 21
Oooh buuuuurn...
Title: Re: RetroManCave loves JustCPC...
Post by: robcfg on 20:50, 02 May 21
Dude, why don't you s*** u* and just bann me to the HOS, that's the only contributions you are making recently to YOUR :D forum.

What makes you think that YOU speak for the CPC community and feel entiteld to say what WE THE CPC COMMUNITY like AND DO NOT LIKE? Please enlighten us.


It may be because only administrators and/or moderators can ban people on the forum, you know…


Anyway, no need to be that rude.
Title: Re: RetroManCave loves JustCPC...
Post by: Gryzor on 20:57, 02 May 21
Best not think much about it, I'm sure the lockdown has been hard for all of us.
Title: Re: RetroManCave loves JustCPC...
Post by: Piotr on 21:29, 05 May 21
Last weekend was busy, i disasembly lot of Amstrads  ;D ;D ;D   Anyway is new week,  courier delivered  today, 10x  NOS  CPC 464 ... So i give info ;)
Memory was removed,  not by me.., shame  ;D But when i install new all 10 boards up and running well. Let's dissasembly it for parts ... ;D
Title: Re: RetroManCave loves JustCPC...
Post by: Gryzor on 21:40, 05 May 21
Presumably from service stock?