GORF U15 (DATA) IC
- Thread starter RGP
- Start date
Cheers James.
I'd not even google for them Gudd as I was being super lazy
As Gudd says it's definitely more than a bus driver. It must have some internal logic because it takes a bunch of Z80 (ctc?) control signals and makes more from them as well as the video.
It looks like something that could be recreated if you had time, a logic analyser, something to drive the inputs a bit like Macro's PAL dumper and the desire. Is this on an accessible card?
I'd not even google for them Gudd as I was being super lazy
It looks like something that could be recreated if you had time, a logic analyser, something to drive the inputs a bit like Macro's PAL dumper and the desire. Is this on an accessible card?
Yes, all the cards can be re-arranged as will fit.
Most GORF boards are supposed to have the interface card (Game BD) at the top as this has the DIPs on them so can be accessed from the rear of the cab easily.
Most board sets i've seen have fitted heat sinks to the U3 / U15 chips which prevent them going into slot 2.
The backplane is also explodable as all it does is tie edge lines together and feed voltages to the boards.
You could put the CPU board in the front slot so that U15 is accessible and then attach whatever you need to it.
Most GORF boards are supposed to have the interface card (Game BD) at the top as this has the DIPs on them so can be accessed from the rear of the cab easily.
Most board sets i've seen have fitted heat sinks to the U3 / U15 chips which prevent them going into slot 2.
The backplane is also explodable as all it does is tie edge lines together and feed voltages to the boards.
You could put the CPU board in the front slot so that U15 is accessible and then attach whatever you need to it.
ataridude74
Active member
Damn it, there was me getting excited that somebody had reproduced or FPGA'd the Gorf custom ICs. If only.
ataridude74
Active member
All three of them are desperately needed by Gorf, Wizard of Wor, Astrocade, etc owners.
But if there is one to do first I would say U15 which is a C2860D-1, also shown as 0066-116xx.
But if there is one to do first I would say U15 which is a C2860D-1, also shown as 0066-116xx.
DonkeyKongler
Newbie
do you have the knowledge to do this?
that would be great...........DonkeyKongler2020-02-11 18:28:42
this videochip is the complex ic of the three :-(
Multiplexed Adress/data Bus
dual Mode Timing (Astrocade / Arcade)
Magic Write Sequencer
Bus Sequencer (for controlling the whole system)
So this is a frustrating job to start first.
and at least: you have almost no space between the pcb boards in the cage (!)
So piggyback the emulator pcb is very hard (I think)
so If I choose this, I only would implement the Arcade part (Gorf/WoW) because this is the only
platform I can hookup my logic Analyzer at the moment.
and test the whole stuff.
I will never do a home / consumer / Astrocade reproduction.
BTW:
Are there paddles / Pots on the arcade games ?
MarcoZ2020-02-11 21:18:57
Multiplexed Adress/data Bus
dual Mode Timing (Astrocade / Arcade)
Magic Write Sequencer
Bus Sequencer (for controlling the whole system)
So this is a frustrating job to start first.
and at least: you have almost no space between the pcb boards in the cage (!)
So piggyback the emulator pcb is very hard (I think)
so If I choose this, I only would implement the Arcade part (Gorf/WoW) because this is the only
platform I can hookup my logic Analyzer at the moment.
and test the whole stuff.
I will never do a home / consumer / Astrocade reproduction.
BTW:
Are there paddles / Pots on the arcade games ?
MarcoZ2020-02-11 21:18:57
The main pcb with the needed 3 chips like U15 can be put in the cage in any order. That pcb could be at the front so plenty of space.
On a Gorf upright the joystick is on optics but the cocktail and wizard of war are like wico leaf switches.
I too would love these chips to be reproduced like all other Gorf owners.
Please keep us updated if you are able to reproduce them.
Thanks Steve
On a Gorf upright the joystick is on optics but the cocktail and wizard of war are like wico leaf switches.
I too would love these chips to be reproduced like all other Gorf owners.
Please keep us updated if you are able to reproduce them.
Thanks Steve
MarcoZ said:
Extra bases uses a trackball, Seawolf II uses grays binary, Gorf, Robby & Wiz use joysticks (Wow has 2 leaves in each direction rather than the usual 1 - move slightly one way and character turns to face that way, move further and character moves that way)
so if you left the POT functions out of the sound chip that would only upset people who use the Astrocade home unit. (makes that one somewhat easier!)
Arcade collectors are my target because it would be sad for all the not working gorfs/WOW PCBs forget in dumpster at the and...
yes, no lightpen support and no Pots for now because its complicated enough...
Spartan3E board is ready. installing the IDE at the moment.
Logic analyzer is running, time to check the Bussignals.....
yes, no lightpen support and no Pots for now because its complicated enough...
Spartan3E board is ready. installing the IDE at the moment.
Logic analyzer is running, time to check the Bussignals.....
This is excellent Markus, looking forward to seeing some progress on this. You would have a lot of very grateful Midway owners