Tetroid interfaces hardware info

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tetroid
Chuggy Microdrive
Posts: 57
Joined: Sun Dec 06, 2015 7:36 pm
Location: Novosibirsk, Russia

Tetroid interfaces hardware info

Postby tetroid » Tue Aug 29, 2017 9:11 pm

I start this topic for technical info ( schematic, board layout etc. ).
Because of my hardware page not finished yet.
I think this is may be interesting for some QL users.
I will add new info in future.

I am sorry, schematic in Russian standard.


1. Miracle Trump card 2 768K and my clone.

Original Miracle Trump card 2 768K schematic ( restored )

My Miracle Trump card 2 768K clone ( black board ) schematic

My Miracle Trump card 2 768K clone ( black board ) board layout


2. Tetroid disk interface.

Tetroid disk interface schematic

Tetroid disk interface board layout

Tetroid disk interface photo



3. Miracle Gold card 3 ( red board ) and my clone

Miracle Gold card 3 oiginal schematic ( restored )

Miracle Gold card 3 clone schematic

Miracle Gold card 3 clone board layout

Miracle Gold card 3 clone photo
Last edited by tetroid on Wed Aug 30, 2017 8:29 pm, edited 2 times in total.


tetroid
Chuggy Microdrive
Posts: 57
Joined: Sun Dec 06, 2015 7:36 pm
Location: Novosibirsk, Russia

Re: Tetroid interfaces hardware info

Postby tetroid » Tue Aug 29, 2017 9:14 pm

future
Last edited by tetroid on Tue Aug 29, 2017 9:17 pm, edited 1 time in total.


tetroid
Chuggy Microdrive
Posts: 57
Joined: Sun Dec 06, 2015 7:36 pm
Location: Novosibirsk, Russia

Re: Tetroid interfaces hardware info

Postby tetroid » Tue Aug 29, 2017 9:16 pm

If you find any errors, issues, etc., please inform me.
I will be glad to see any questions and wishes concerning improvement.


Nasta
Trump Card
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Joined: Sun Feb 12, 2012 2:02 am
Location: Zapresic, Croatia

Re: Tetroid interfaces hardware info

Postby Nasta » Wed Aug 30, 2017 11:11 pm

Would you be willing to post the PAL equations for the Trump Card clone?


tetroid
Chuggy Microdrive
Posts: 57
Joined: Sun Dec 06, 2015 7:36 pm
Location: Novosibirsk, Russia

Re: Tetroid interfaces hardware info

Postby tetroid » Thu Aug 31, 2017 9:18 pm

Nasta wrote:Would you be willing to post the PAL equations for the Trump Card clone?


Yes, no problem.
I have 1V4 equation only.
Only PAL1 ( 1V4 ) is important, PAL2 ( 2V4 ) is for DRAM only ( difficult and isn't necessary for modern SRAM memory ).

1V4 PAL16L8 euations and schematic of TC logic


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Peter
Gold Card
Posts: 369
Joined: Sat Jan 22, 2011 8:47 am

Re: Tetroid interfaces hardware info

Postby Peter » Fri Sep 01, 2017 11:47 am

Impressive work! Did you re-engineer the whole GoldCard yourself, just from a piece of hardware?


tetroid
Chuggy Microdrive
Posts: 57
Joined: Sun Dec 06, 2015 7:36 pm
Location: Novosibirsk, Russia

Re: Tetroid interfaces hardware info

Postby tetroid » Fri Sep 01, 2017 8:30 pm

Peter wrote:Impressive work! Did you re-engineer the whole GoldCard yourself, just from a piece of hardware?


I re-engineer full copy of Gold card, very small differents ( battary and 5V adapter ).
Other all parts is identical to original ( I use EP1810JC-35, not EP1810LC-35 ).

I try to disassemble the INGOT5 chip contents, but this is manual work, need some time.
After that we can change old EP1810 to modern chip.


Nasta
Trump Card
Posts: 189
Joined: Sun Feb 12, 2012 2:02 am
Location: Zapresic, Croatia

Re: Tetroid interfaces hardware info

Postby Nasta » Sat Sep 02, 2017 3:35 am

tetroid wrote:
Nasta wrote:Would you be willing to post the PAL equations for the Trump Card clone?


Yes, no problem.
I have 1V4 equation only.
Only PAL1 ( 1V4 ) is important, PAL2 ( 2V4 ) is for DRAM only ( difficult and isn't necessary for modern SRAM memory ).

1V4 PAL16L8 euations and schematic of TC logic


Eh, I was hoping you had the 2V4 equations - the circuit seems a bit odd and I was looking forward to figuring out how it works :)

Re GC and EP1810, it may well be easier measuring and then simply making equivalent, rather than completely copied logic. I suspect the DRAM controller part is the difficult one, the rest should not be problem.


tetroid
Chuggy Microdrive
Posts: 57
Joined: Sun Dec 06, 2015 7:36 pm
Location: Novosibirsk, Russia

Re: Tetroid interfaces hardware info

Postby tetroid » Sat Sep 02, 2017 6:36 am

Nasta wrote:
Eh, I was hoping you had the 2V4 equations - the circuit seems a bit odd and I was looking forward to figuring out how it works :)





2V4 PAL16L8 euations



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