But I don't think this can help...
In fact, it may confuse you even more, since it looks like a rat's nest

https://drive.google.com/open?id=0B0OtM ... ERqVW5NNzQ
https://drive.google.com/open?id=0B0OtM ... U1qN3dmYk0
Moderators: B00daW, Moderators
Fisher wrote:Well, here are some pictures of a UOROM mod I've made a few weeks ago.
But I don't think this can help...
In fact, it may confuse you even more, since it looks like a rat's nest![]()
https://drive.google.com/open?id=0B0OtM ... ERqVW5NNzQ
https://drive.google.com/open?id=0B0OtM ... U1qN3dmYk0
lidnariq wrote:It's evident that you really want someone to just give you a set of no-think instructions.
For your own sake, please bother to learn some basics of digital logic¹. Your UNROM board is a fine place to start. Just because it didn't work doesn't mean it couldn't.
¹: Here's a tutorial from SparkFun, and the class notes from something that looks reasonable.
Then why not just buy a flash cartridge like the Everdrive N8? Why bother with all the soldering and everything if you have no desire to learn this stuff? I don't understand your reasoning there.Tormenter wrote: I want to play the game. I don't want to really spend months learning it just to play it. Would be just as simple to say how that way everyone in the future will have this information here posted on the board. I really do not want to learn logic, electric circuits etc, just want to play the game. Thanks for the help.
getafixx wrote:Then why not just buy a flash cartridge like the Everdrive N8? Why bother with all the soldering and everything if you have no desire to learn this stuff? I don't understand your reasoning there.Tormenter wrote: I want to play the game. I don't want to really spend months learning it just to play it. Would be just as simple to say how that way everyone in the future will have this information here posted on the board. I really do not want to learn logic, electric circuits etc, just want to play the game. Thanks for the help.
With a flash cart you just copy a ROM onto an SD card and you're done, and then you can play whatever game you want. It's much less hassle for you, really, and saves a few donor boards along the way.
Or you can use custom boards so that you don't have to rewire anything at all, just drop your EPROM chips in. Something like RetroStage's or INL's boards
I would like to convert UNROM on UOROM.Ice Man wrote:Really? Pin 30 is lifted up and ONLY connected to pin 8 of the 74'32.
I cannot make it more clear.
UNROM -> UOROM:
Bend up pin 6 of 74'161
Bend up pin 9 and pin 10 from 74'32
Connect pin 9 from 74'32 to pin 2 74'32
Connect pin 11 of 74'161 to pin 10 of 74'32
Connect pin 6 of 74'161 to D3 of PRG ROM (DO NOT LIFT THIS PIN OF PRG ROM!)
Connect pin 8 of 74HC32 to pin 30 (A17) of PRG ROM (LIFT THIS PIN!)
There's really nothing else I can add/do. Schematics already showed how it's soldered.
Otherwise get an UOROM donor or check the connections with a multi meter.