BackBit Pro / GX4000

[Titi]

https://youtu.be/tI2wkelVzyw?si=PPz3FHwExC37eCxg

[Gryzor]

A what? 

[andycadley]

Seems to be some sort of multi-system cartridge adapter. Maybe a good solution for anyone who doesn't have a C4CPC?

[poulette73]

https://www.cpcwiki.eu/forum/amstrad-cpc-hardware/who-knows-the-backbit-pro-cartridge/

[Gryzor]

Ah yes that was the thing. I remembered the project but not the name... 

[darksteph]

Really good product, I have it on my GX4000. This is also valid on Amstrad+ and many other systems. The card is a little expensive but it works well.

[Cwiiis]

Does it really require that you open up the machine and solder to something...? Not quite the C4CPC alternative one would've hoped for given how much it costs.

[pelrun]

That's because as a platform-agnostic device, it doesn't have an ACID or NoACID present. Could rather easily add one to the adapter, but the mod is pretty darn simple.

[eto]

That's because as a platform-agnostic device, it doesn't have an ACID or NoACID present. Could rather easily add one to the adapter, but the mod is pretty darn simple.

I think it has the NoAcid-chip on the adapter. The cable seems to be the Reset-line which is not present on the cartridge port. I guess the Backbit loads the ROM into it's RAM and then resets the GX4000 so it properly restarts. 

I'm still curious what microcontroller is used. Too sad nobody did a tear-down yet.