Updated schematics

A project log for Atari 2600 Bankswitch Cartridge

A ROMless cartridge with internal selectable bankswitch for 8/16/32K games and a DIY ROM friendly connector.

danjovicdanjovic 08/04/2016 at 02:340 Comments

Updated the schematics to allow bankswitch selection from external logic levels on BS0,BS1 pins instead of simple wired-or configuration. One chip was added but 4 diodes and three resistors were eliminated.

A PLD version is also being considered. It will be considerably simpler to implement, but without the same retro appeal.