icemanxp300 Posted July 15, 2017 Share Posted July 15, 2017 Ok so I ran across a few threads here and there about combining 2 roms or more to make multicarts in which the reset changes the game. I found this article showing wiring a 74161 but it does not work for me. http://www.sega-16.com/forum/showthread.php?28939-Guide-Basic-Genesis-Multicart Data sheet: http://pdf1.alldatasheet.com/datasheet-pdf/view/27442/TI/74161.html I have tried so many different things. Now doing what he says which is pulling A19, A18, and A17 from a m27c160 and wiring to the 74161 gets me to the Sega Logo but then freezes. Using the eprom wired normally plays the first game, so the eprom does work to a point. I even pulled A16 for the 4th highest like it shows in his diagram but not in his description. None works. If I have A19 and A18 routed to the 74161 and then A17 connected to cart as normal I get scrambled graphics. I do believe this information is partially correct but I feel something was left out. My next guess is maybe try putting the cart pins for A19, A18, A17 and connect to the other side of the 74161? Any ideas? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.