+selgus Posted October 14, 2022 Share Posted October 14, 2022 As I am finishing up an ATARI 8-bit Portable project, which has been in development for a long time, I started doing some initial work on an SEGA Genesis Portable system. It is based on the SEGA Genesis Model 2, VA1 schematics and uses harvested chips and components from a real Genesis. It has a built-in LCD display (same as I'm using on the ATARI) and a similar LiPo powering/charging USB-C setup. I have started laying out the PCB and have created devices for all the custom SEGA ICs/components. The schematic is about 95% wired, with just some passives still needed to be added to the board.. I am taking a few liberties with my design, like not implementing mono audio, the edge connector or the SEGA CD/32X audio mixing. It takes standard SEGA cartridges inserted into the top and will have stereo speakers, along with a built-in stereo amp. As you can see from the PCB, I am using the Genesis controller as the basis for the shape of the portable, with a built-in joypad (I think I am going to do a 6-button controller for the built-in) along with a second db-9 controller port. I started mocking up the enclosure so I can get some of the proportions right.. More to come... 3 Quote Link to comment Share on other sites More sharing options...
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