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Author Topic: Creating EXDOS card clone (Read 140937 times)

Offline Tutus

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Re: Creating EXDOS card clone
« Reply #210 on: 2021.January.14. 09:48:53 »
Then I have a sales box for version 2.0
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Offline Allf

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Re: Creating EXDOS card clone
« Reply #211 on: 2021.January.14. 10:22:00 »

You already have the box, you need to add a new version that knows more ...
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Offline szalai56

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Re: Creating EXDOS card clone
« Reply #212 on: 2021.January.14. 10:29:14 »
Quote from: Tutus on 2021.January.14. 09:48:53
Then I have a sales box for version 2.0
Nekem jöhetne, ha eladó lenne.
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Offline Moving4x4

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Re: Creating EXDOS card clone
« Reply #213 on: 2023.July.20. 12:57:38 »
Hello everyone!
I am a newer in this topic and with this wonderful computer "Enterprise" I am familiar with just a couple of months. Now I will do the expansion of memory up to 1.5MB. All parts and PCB are ordered and are on the way.
My next step will be to expand the capability to EXDOS.  The project that the respected Pear has developed has caught my attention.  But it's not realistic to find 1772 chips now.  But I found 1770 and bought them.  There is only one question that worries me.  Will the 1770 work on an EXDOS v.2.0 board?  If not, then what board should I to asembl? 
Regards to all who read!
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Offline Zozosoft

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Re: Creating EXDOS card clone
« Reply #214 on: 2023.July.20. 13:51:00 »
Quote from: Moving4x4 on 2023.July.20. 12:57:38
But I found 1770 and bought them.  There is only one question that worries me.  Will the 1770 work on an EXDOS v.2.0 board?  
Yes, it will work. The only important difference is the step rates, with the 1770 6,12,20,30ms is possible, with 1772 6,12,2,3.
Only some drives can work with fastest 2ms (for example Teac FD55F or GF), but near all of them work with 3ms, with faster and quieter operation than the 6ms.
So the original EXDOS ROM modified for using 3ms for 1772 (variable 73 set to 3). If you only have a 1770 then you should use the rom which uses 6ms setting (variable 73 set to 0).
« Last Edit: 2023.July.20. 15:21:04 by szipucsu »
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Offline Moving4x4

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Re: Creating EXDOS card clone
« Reply #215 on: 2023.July.26. 10:00:51 »
Ok, thanks for your reply Zozosoft.
I desided try to do this version of FDC.
It was made by Wilco2009. Its more simplest for me.

https://enterpriseforever.com/interface/creating-exdos-card-clone/msg69488/#msg69488
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Offline gflorez

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Re: Creating EXDOS card clone
« Reply #216 on: 2023.July.26. 11:18:46 »
Yes, Wilco's EXDOS clone only uses discrete components. Except for the EPROM, you will not need to  program other chips.

If you need some advice on trimming the EDGE connector, please don't hesitate to ask. Also, I advice you to use a Traco or similar 7805 regulator clone to avoid the use of a big heat-sink. Take the +5V from the voltage regulator output to feed your HxC clone. Can you show it here? It can be interesting for other users.
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Offline Moving4x4

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Re: Creating EXDOS card clone
« Reply #217 on: 2023.July.26. 12:00:33 »
Yes. I have this one HxC.
Fotos of it you could see below.
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Offline Zozosoft

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Re: Creating EXDOS card clone
« Reply #218 on: 2023.July.26. 12:58:14 »
Funny to see сделано в СССР chips on it :ds_icon_cheesygrin:
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Offline Moving4x4

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Re: Creating EXDOS card clone
« Reply #219 on: 2023.July.26. 13:39:39 »
O yes! Its still working good. )))
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Offline Moving4x4

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Re: Creating EXDOS card clone
« Reply #220 on: 2023.August.09. 16:41:53 »
Hi everyone!
I was get the PCB of EXDOS controller version by wilco2009!
And wd1770 too!
It remains to wait a few chips and I will start to creating!
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Offline Zozosoft

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Re: Creating EXDOS card clone
« Reply #221 on: 2023.August.09. 21:06:33 »
Nice!
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Offline gflorez

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Re: Creating EXDOS card clone
« Reply #222 on: 2023.August.10. 01:58:33 »
It seems that Wilco has released all the information about his Enterprise EXDOS controller design.

Maybe it can have a place on the Enterprise Wiki.
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Offline Moving4x4

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Re: Creating EXDOS card clone
« Reply #223 on: 2023.August.18. 00:27:47 »
My friends!
I have been done soldering pcb exdos. Help me please to find a rom file for it with support the wd1770.
« Last Edit: 2023.August.18. 00:31:10 by Moving4x4 »
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Offline SlashNet

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Re: Creating EXDOS card clone
« Reply #224 on: 2023.August.18. 07:07:26 »
If I not mistaken, in this archive must be desired EXDOS14UK-1770.ROM file (or better EXDOS14ISDOS10UK-1770.ROM).

But let more knowledgeable people say it.
« Last Edit: 2023.August.18. 07:11:00 by SlashNet »
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