nesdev.org

That's how I'm doing it ) At first I trace all layers of high resolution die photos: http://breaknes.com/files/PPU/2C02G.zip (since I dont have delayered images I took diffusion layer from Quietust site, other layers are traced by myself) Original die photos can be found here: http://uxul.org/~nona...

tepples wrote:Aren't these pictures of the decapped PPU?

Yes, but they are of very low quality, the chip broke during decapsulation, and we don't have a delayered image.

Alright, thanks to willing donators we should soon have enough standard composite units (RP2C02-0) to do a successful decap.

If there is enough interest and someone is willing to sacrifice his/her chip, we might also do one of the RGB units later on, but that lies in the future.

Now what I really, really wish is a visual 2C02. That would be awesome!

If you can, please donate some chips to make that happen (PM me for more info).

Are there any pages on NesDev or others where we are discussing the layouts of the 2A03 or 2C02 (CPU,PPU)? For example, the CPU is certainly interesting, as it looks like (I'm no hardware guy, so correct me if I'm wrong) the audio unit in the top-right corner was basically designed into a separate ...

I am the guy who did the die shot of the 2A03 seen in the visual6502 talk mentioned in the other thread, you can see all the material here: http://uxul.org/~noname/chips/ (here is a 300MB image: http://uxul.org/~noname/chips/stitch-devig-color/1.png). The CPUs destroyed in the process came from Memb...

But, as the video also shows, the 2A03 die is only 1/4 6502...so there's still a lot of potential to gain accuracy by actually doing a visual2A03 project. :D We are in the process of developing distributed tools for drawing the various features on chips. As seen in the above video, we already have ...

have you searched european auction sites? Great! I did not know there were NTSC units in the EU. I have sent you a PM. Still looking for someone in the US to desolder the CPUs from the units I bought there, though (desoldering is easy!). I cannot believe it would be so hard to find someone. Just na...

It looks like those are mostly suspicious China-based IC traders. Anyway, I have gone for the tedious option of bidding on sufficiently many NES units on the free market. Unfortunately, most of them come with extra parts (cables, connectors, accessories, games) I am not interested in. Shipping all o...

I am currently looking to buy a batch (~5) of 2A03s, revision G, for reverse-engineering purposes. Is there an easier way than buying single consoles and ripping out the chips? Because that would mean tremendous shipping costs, me being located in PAL territory.