Atari Mega STe PALS sources ?

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sporniket
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Atari Mega STe PALS sources ?

Post by sporniket »

Hello,

I am curious about the PALS used throughout the Mega STe to implement the various features that makes it "Mega" (especially 16Mhz mode, cache, fpu)

Some of these PALS have their sources availables in the "Atari HQ CD1", that's great :
  • RSTBS.DOC: U002
  • SYSCTL.DOC: U011
  • CCTL.DOC: U012
  • CLKCTL16.DOC: U407
  • VME2.DOC: U904
  • SCCCTL.DOC: UA03
  • FPUCTL.DOC: UB01
But I do not find such reference material for the other PALS (U003, U006, U903 and UA02, if memory serves me right). To some extent, I can find out what are the input and output thanks to the schematics, but if someone has the formulas, that would be great to satisfy my curiosity.

(But then, I will be able to more easily make something like this :

mste_u002.png
mste_u002.png (54.04 KiB) Viewed 1004 times
)
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exxos
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Re: Atari Mega STe PALS sources ?

Post by exxos »

I have these..

BUT IIRC these were floating around the net and might not be final versions as I never got them to work right.

MSTE_GALS.zip
(5.12 KiB) Downloaded 37 times
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
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People should find solutions to problems, not find problems with solutions.
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sporniket
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Re: Atari Mega STe PALS sources ?

Post by sporniket »

:thumbup:

Thanks, although not human readable, the MSTE_UA2 file seems to designate one of the missing PALS, the 3 others seems already covered by what I have.
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Re: Atari Mega STe PALS sources ?

Post by exxos »

Found this also.

MSTE_PALS.zip
(77.27 KiB) Downloaded 34 times
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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exxos
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Re: Atari Mega STe PALS sources ?

Post by exxos »

sporniket wrote: Mon Jun 13, 2022 3:30 pm Those are the files from the Atari HQ CD, I already have them, thanks.
Could have been where they came from. I think those were the only ones which were ever found. Like I say, I think they were BETA versions or something as they were buggy.

My be an idea to upload stuff into the library section for future generations to puzzle over :lol:
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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frank.lukas
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Re: Atari Mega STe PALS sources ?

Post by frank.lukas »

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sporniket
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Re: Atari Mega STe PALS sources ?

Post by sporniket »

Danke shön. :goodpost:

I quicky saw equations U003 and U006 at page 5 :yay2: , and all the thread looks effectively promising... :coffee:
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Re: Atari Mega STe PALS sources ?

Post by frank.lukas »

Idek (Nova Driver) has final all JED files work out with the right checksum ...

It was hard work from pakman and idek
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