Curious

[eanema]

I recently bought my daughter one of these projectors for her birthday and my first thought after looking at it was: let's hack this. Anyways, I skimmed your log and it seems you've been able to dump the contents of a cart. Your pictures answered a few questions for me, first this is just a simple SPI Flash part with most of the pins broken out. Write protect and reset are not but that's fine.

It should be easy enough to connect a cart to a PC using a suitable connector and a USB/SPI adapter. This would allow to read and write the cart. Although to write to the cart you'd have to lift the WP pin. Internal pull-ups would like mean you would not actually need to connect WP pin to ground. If there are no internal pull ups then you'd need to lift the pin and then connect to ground. Pretty straight forward mod.

As I'm sure you've figured out, the real hard part is deciding the contents.

I am a hardware/digital engineer with plenty of experience and an interest in this project. Maybe I'll be able to help. Can you point me towards the images of your successful cart dumps?

[mtkimmins]

Apologies for the response delay. I have dumped some binary files in under Binary/MyBins/DoubleQuint
In there you will see a series of titles of cartridges, which I have dumped several copies of since I have noticed that each dump comes with some noise. I have attempted to amalgamate them into an agreed "gold-standard" dump. I have 1 gold standard available under BigSharkLittleSharkBabyShark. Both files within "GS" are the same as they are purified files from two separate series of dumps from two separate copies of the same cartridge. All binary files are held under MyBins. The diffsheet.xlsx under "Binary" is a record of the changes during purification. The labels "M" and "F" are arbitrary to delineate which copy I dumped that specific series from.
TL;DR:

• the path to the pure binary dump is: Binary/MyBins/DoubleQuint/BigSharkLittleSharkBabyShark/+BSLSBS-GS.
• Both files within that folder are identical.
• This should be a purified copy compiled from multiple crappy dumps from two separate, but same story, cartridges.

[eanema]

Awesome! Thanks for this. Hopefully I will find a few minutes to have a look at this next weekend.