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Namco NA1 & NA2 CONVERSIONS (and multi development)

Still building the romset / ironing out the bugs....
Seems some of the logic chips are not upto scratch.

Anyways progress update video with no keycus hardware:



Also the problematic keycus has arrived and problematic games have been identified.
Patched standard conversion sets for the Quiz setup coming soon ;)
 
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Hammy said:
And for those who think making a multikit from nothing is easy, or enjoy the hammy outtakes / comedy:
all i can say is it's very frustrating!
Click to expand...
As someone said about my multis (no offense taken, cause that statement was true): "It's like automatic romswap".

Yes but along the way you need to:
1 ) understand the hardware (how many banks/busses, etc)
2 ) pinout the connectors
3 ) decrypt/patch games
4 ) concatenate data
5 ) reproduce/RE PALs (S16), security chips (S24) and sometimes custom chips (S18)
6 ) design/program some logic to handle all of that
7 ) route a PCB
8 ) test PCB
9 ) correct design
10 ) repeat 7/8/9 until 100% working

Anyway, great work @Hammy. :thumbup:
 
Apocalypse said:
As someone said about my multis (no offense taken, cause that statement was true): "It's like automatic romswap".
Yes but along the way you need to:
1 ) understand the hardware (how many banks/busses, etc)
2 ) pinout the connectors
3 ) decrypt/patch games
4 ) concatenate data
5 ) reproduce/RE PALs (S16), security chips (S24) and sometimes custom chips (S18)
6 ) design/program some logic to handle all of that
7 ) route a PCB
8 ) test PCB
9 ) correct design
10 ) repeat 7/8/9 until 100% working

Anyway, great work @Hammy. :thumbup:
Click to expand...
Exactly but there's more!
11: don't kill the motherboard
12: roms start to die after a few burns / erases
13: trying to understand your own work from 2 years ago with no documentation.

hehe
 
Darksoft said:
Hammy said:
13: trying to understand your own work from 2 years ago with no documentation.
Click to expand...
That's a killer. I write everything like if it was a novel, so I can take it over again after some time...
Click to expand...
It would not be so bad but there's lots of brain fog about around here at the moment.
The main problem is rom order needed to be perfect or everything is screwed.... the simplest thing not written down.

To be honest it was good to go over everything again, got the chip count down a few for the final.

Next time will get some kind of notepad instead of scraps of paper and text files that get lost / deleted.


___ Hammy opens random text file:
3x8 sprite
3x8 tiles
2x16 oki

jp1
cut 1-2
join 3-2

Sounds good but WTF it for haha ;)
 
Darksoft said:
That's a killer. I write everything like if it was a novel, so I can take it over again after some time...
Click to expand...
Maybe that's the main difference between you, the pro, and us, hobbyists.
At least for me, I'm terrible at taking notes, etc. And on top of that I have a bad memory...
:D

Sometimes I start redoing something only to realise I already completed it months/years ago. It always makes my day.
 
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