Tetroid interfaces hardware info
Tetroid interfaces hardware info
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
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.
I still have my QL items still available, anyone interested, please contact me at tetroid@inbox.ru
Re: Tetroid interfaces hardware info
future
Last edited by tetroid on Tue Aug 29, 2017 9:17 pm, edited 1 time in total.
I still have my QL items still available, anyone interested, please contact me at tetroid@inbox.ru
Re: Tetroid interfaces hardware info
If you find any errors, issues, etc., please inform me.
I will be glad to see any questions and wishes concerning improvement.
I will be glad to see any questions and wishes concerning improvement.
I still have my QL items still available, anyone interested, please contact me at tetroid@inbox.ru
Re: Tetroid interfaces hardware info
Would you be willing to post the PAL equations for the Trump Card clone?
Re: Tetroid interfaces hardware info
Yes, no problem.Nasta wrote:Would you be willing to post the PAL equations for the Trump Card clone?
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
I still have my QL items still available, anyone interested, please contact me at tetroid@inbox.ru
Re: Tetroid interfaces hardware info
Impressive work! Did you re-engineer the whole GoldCard yourself, just from a piece of hardware?
Re: Tetroid interfaces hardware info
I re-engineer full copy of Gold card, very small differents ( battary and 5V adapter ).Peter wrote:Impressive work! Did you re-engineer the whole GoldCard yourself, just from a piece of hardware?
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.
I still have my QL items still available, anyone interested, please contact me at tetroid@inbox.ru
Re: Tetroid interfaces hardware info
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 workstetroid wrote:Yes, no problem.Nasta wrote:Would you be willing to post the PAL equations for the Trump Card clone?
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
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.
Re: Tetroid interfaces hardware info
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
I still have my QL items still available, anyone interested, please contact me at tetroid@inbox.ru