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8k games into a 4k CHIPS???? How is it possible??? (ATARI 2600)


pcrock

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2 hours ago, Pilot99 said:

I start the tests with the 4 in 1 "27C256_Phoenix_Hero_Kangaroo_Ms pac man" and only Hero don't worked, so I separeted the 4 games and replaced "Hero" with other "Hero" from the 4x1 dump of the thread above, so the 4 games work.

So the roms I sent you haves the same bankswitch scheme as that weird cart?
Then The other ones I sent you might work too.. All of them works in the same board I tested here, so I think if one of them works all other must work too.

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13 hours ago, Pilot99 said:

I start the tests with the 4 in 1 "27C256_Phoenix_Hero_Kangaroo_Ms pac man" and only Hero don't worked, so I separeted the 4 games and replaced "Hero" with other "Hero" from the 4x1 dump of the thread above, so the 4 games work.

Good Morning
What PCB did you use for these games would you give me?

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8 hours ago, Robson Zandoná said:

Good Morning
What PCB did you use for these games would you give me?

I used the pcb below...
The friend alex_79 member here in the forum, traced the schematics.
I converted this circuit to use a 27C512 adding two more switches and now it is able to run eight 8K games. But the bankswitching is the same.. It was not changed..

WhatsApp Image 2020-09-04 at 23.16.39 (3).jpegWhatsApp Image 2020-09-04 at 23.16.39 (1).jpegboard.jpgschem.png

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6 hours ago, pcrock said:

I used the pcb below...
The friend alex_79 member here in the forum, traced the schematics.
I converted this circuit to use a 27C512 adding two more switches and now it is able to run eight 8K games. But the bankswitching is the same.. It was not changed..

WhatsApp Image 2020-09-04 at 23.16.39 (3).jpegWhatsApp Image 2020-09-04 at 23.16.39 (1).jpegboard.jpgschem.png

Are you Brazilian @pcrock, if you can help me because I don't understand electrical projects and schemes?
I am too
 
 
Edited by Robson Zandoná
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  • 2 months later...
On 9/16/2020 at 6:40 PM, Pilot99 said:

 

Hello my friend, I need games with the same bankswitch of this cartridge, have you done a dump? know where I can find 8k games with the same bankswitch?

Sorry for the delay. Covid-19 time it is been a hard days and hard night here.
I dumped my two carts today an sent zip files here.

Please note that this is a weird strange cart.

It uses a kind of special 16K chip that fits a 32K data content.
So I did two types of reading. Firstly I did a read as a 27128 chip and after I did a read as 27256 chip. Please Keep in mind that the actual chip is a NMC27CP128Q. I sent attached all the data I got. I placed some pics from the board too.
Hope be useful for you.
Once more sorry for the delay on dumping the files...
 

WhatsApp Image 2020-12-07 at 21.19.39 (1).jpeg

WhatsApp Image 2020-12-07 at 21.19.39 (2).jpeg

WhatsApp Image 2020-12-07 at 21.19.39 (3).jpeg

WhatsApp Image 2020-12-07 at 21.19.39 (4).jpeg

WhatsApp Image 2020-12-07 at 21.19.39.jpeg

READ AS 27C128.zipx READ AS 27C256.zipx

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  • 1 year later...
On 12/7/2020 at 10:20 PM, pcrock said:

THE GAMES INSIDE THE ROMS I PLACED ABOVE IS:

E.T

Press Cooker
Robot Tank
Pigs in Space   (ALL BY RENTACON)

H.E.R.O. (By Rentacon)
Pole Position (By Rentacon)
Moon Patrol (By Rentacon)
Beam Raider (By JVP)

Thank you, my friend for your efforts!

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  • 2 weeks later...

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