trumpcard 768 questions
trumpcard 768 questions
I am looking for some info regarding the floppy controller and pic's on the boards .
any change over versions to the pic 1 and 2 ?
latest firmware 1.37 ?
any schematics available ?
regarding the memory , is it possible to add tms41256 to a 4256 pcb ?? as 1 bank is missing all its chips
hope you can help me with this nfo .
any change over versions to the pic 1 and 2 ?
latest firmware 1.37 ?
any schematics available ?
regarding the memory , is it possible to add tms41256 to a 4256 pcb ?? as 1 bank is missing all its chips
hope you can help me with this nfo .
Zx80-1/3k exp.-zx81-16k exp.- Spectrum 48 - Spectrum+ -Spectrum 128- Interface 1 - DIVide - Zx flashcard- Zx printer - Ram turbo - Velleman interface system - Currah microspeech - Ql - Miracle 512k exp.- Ql printer - Cst Qdisk interf.- Qubide - Double 3.5 floppy- Minerva - Ice 1.9 - Ql Usb mouse adapter - Qimi-and much more .
Re: trumpcard 768 questions
If you board has the three rows of RAM chips - then you can just add a complete row if one is missing.
The newer board was redesigned to have a lot fewer RAM chips by using 4 bit RAM's I believe, but still as 3 lots of 256K
The newer board was redesigned to have a lot fewer RAM chips by using 4 bit RAM's I believe, but still as 3 lots of 256K
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Re: trumpcard 768 questions
i thought it were pic's ,
turned out to be PAL's ( pal16l8anc ) --> , not pictures
are there any changes made in their contents ?
turned out to be PAL's ( pal16l8anc ) --> , not pictures
are there any changes made in their contents ?
Zx80-1/3k exp.-zx81-16k exp.- Spectrum 48 - Spectrum+ -Spectrum 128- Interface 1 - DIVide - Zx flashcard- Zx printer - Ram turbo - Velleman interface system - Currah microspeech - Ql - Miracle 512k exp.- Ql printer - Cst Qdisk interf.- Qubide - Double 3.5 floppy- Minerva - Ice 1.9 - Ql Usb mouse adapter - Qimi-and much more .
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- Location: Sunny Runcorn, Cheshire, UK
Re: trumpcard 768 questions
Hi,
Ahhh.... Pics of Pals...
Why not take the PAL out of the socket and try and read the code, unless the protect option is programmed in,it is little harder to crack the PAL security.
Ahhh.... Pics of Pals...
Why not take the PAL out of the socket and try and read the code, unless the protect option is programmed in,it is little harder to crack the PAL security.
Regards,
Derek
Derek
Re: trumpcard 768 questions
no pal programmer here ( only pic and gal )
hence my question
hence my question
Zx80-1/3k exp.-zx81-16k exp.- Spectrum 48 - Spectrum+ -Spectrum 128- Interface 1 - DIVide - Zx flashcard- Zx printer - Ram turbo - Velleman interface system - Currah microspeech - Ql - Miracle 512k exp.- Ql printer - Cst Qdisk interf.- Qubide - Double 3.5 floppy- Minerva - Ice 1.9 - Ql Usb mouse adapter - Qimi-and much more .
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- Location: Sunny Runcorn, Cheshire, UK
Re: trumpcard 768 questions
Hi,
Is the Trump Card in question v1 or v2
I have got PAL JED files for both.
Is the Trump Card in question v1 or v2
I have got PAL JED files for both.
Regards,
Derek
Derek
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Re: trumpcard 768 questions
shematics are from tetroid
pal 1 & 2 JEDEKS i dont remember... tetroid has meke a clone with extras all off this is in the forum...
this is the logic for memmory and this the logic for dickdrive....(is the only think i designed)
for 2 versionpal 1 & 2 JEDEKS i dont remember... tetroid has meke a clone with extras all off this is in the forum...
this is the logic for memmory and this the logic for dickdrive....(is the only think i designed)
Re: trumpcard 768 questions
Thanks for all info !!
very helpfull to get this old material working again.
@Derek_Stewart ,
both cards are version one , can you share the pal's please
techy
very helpfull to get this old material working again.
@Derek_Stewart ,
both cards are version one , can you share the pal's please
techy
Zx80-1/3k exp.-zx81-16k exp.- Spectrum 48 - Spectrum+ -Spectrum 128- Interface 1 - DIVide - Zx flashcard- Zx printer - Ram turbo - Velleman interface system - Currah microspeech - Ql - Miracle 512k exp.- Ql printer - Cst Qdisk interf.- Qubide - Double 3.5 floppy- Minerva - Ice 1.9 - Ql Usb mouse adapter - Qimi-and much more .
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- Over Heated PSU
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Re: trumpcard 768 questions
i believe pal jedek is from version 1 i post (any one to confirm here....) the version 2 has only les chips on memory