2 replies to this topic

[landsmarra]

Hey guys,

With the impending release of the CC2, I was thinking...

How about putting one inside a 7800 and wiring it up such that the unit could detect if a cart was in the unit or not and if not, boot the CC2 menu. A slot could be put on the side/back of the 7800 for access to the MMC (in case more ROMs need to be added and such).

Can anyone comment on feasibility? How hard would it be to do the cart detection thing? Could it be done through a OS ROM hack (actually the PAL/NTSC OS ROM that boots Asteroids with no cart inserted must be doing something similar) or through other circuitry?

Thanks,
Steve

[Happy_Dude]

Quote

Can anyone comment on feasibility? How hard would it be to do the cart detection thing? Could it be done through a OS ROM hack (actually the PAL/NTSC OS ROM that boots Asteroids with no cart inserted must be doing something similar) or through other circuitry?

Your thinking too much
All you need to detect a cart is a switch.
Cart in, switch on
Cart out, switch off

And I don't think that would be nesicary because the PAL bios loads Asteroids 3D
if no cart is present. Just check the startup address and if theres nothing there ..... :wink:

[Susuwatari]

Couldn't the switch be tied to CE line? I don't have the schematic of 7800 handy but many cart based console used CE line to enable or disable cart and ROMs