4k EPROM Cart

[khryssun]

I plan to build an EPROM 4k cart.

 

I don't want to build a multicart such as Bob Colbert's one with dipswitches.

 

For my first attempt I'd like to work on a very elementary circuit.

 

I see the stuff like this :

- Build a simple circuit with a 2732 EPROM and a 7404 Invertor.

 

Anyone got an EPROM cart and may to help me ?

 

Furthermore, If you have some EPROM cart or Prototype EPROM Cart (4Ko only) out of their box and a SCANNER please email me a 2 sided scan (scale 1:1 - not a photo). This may help.

 

khryssun@aol.com

 

I wondering about on thing :

 

Is it possible to replace the 2732 EPROM with an EEPROM ?

 

Thanks

[Marc Oberhäuser]

Check this site:

 

Hozer

 

Best

MaO

[eluccas]

quote:

---

Originally posted by khryssun:

I plan to build an EPROM 4k cart.

 

I don't want to build a multicart such as Bob Colbert's one with dipswitches.

 

For my first attempt I'd like to work on a very elementary circuit.

...

I wondering about on thing :

Is it possible to replace the 2732 EPROM with an EEPROM ?

Thanks

---

 

Hi !!!

Yes, is perfectly possible, and is not much difficult.

 

Take the cartdrige slot pinout. The pinout is exactly the pinout of a 2732 EPROM, except by the chip select line, this is need to inverted.

So, follow pin-to-pin connections between cartdrige slot and EPROM, except for A12. Take A12 line and use 1 74LS04 gate to invert this line and connect to pin 18 of 2732 (/CE). Your cart is ready !!!

 

Of course you need to burn the EPROM with a game program. And you need to build a PCB with a 24 pin edge connector to plug in 2600.

 

 

I hope this helps.

[khryssun]

Sure ! any help is welcome