ApolloBoy Posted January 13, 2004 Share Posted January 13, 2004 Is it possible to use a SID chip in a 7800 cart? I'm sure it wouldn't be too much work, right? Quote Link to comment Share on other sites More sharing options...
EricBall Posted January 14, 2004 Share Posted January 14, 2004 From Programming the 7800 Sure, stick a SID (6582) in a 7800 cart. I don't see any reason you couldn't. Several reasosns why it wont work: it needs 2 power currents (5V and 9/12V (depending on the model)) and its maximum clock frequency is 1Mhz. (Btw the model you mentioned is the most hardest to find... ) Better would be something like an OPL2, OPL3 or OPL4 chipset, but i guess it would be too much CPU overhead generating sounds with these devices... But, any memory-mapped sound generator with TTL level analog output should be okay. Quote Link to comment Share on other sites More sharing options...
ApolloBoy Posted January 15, 2004 Author Share Posted January 15, 2004 From Programming the 7800 Sure, stick a SID (6582) in a 7800 cart. I don't see any reason you couldn't. Several reasosns why it wont work: it needs 2 power currents (5V and 9/12V (depending on the model)) and its maximum clock frequency is 1Mhz. (Btw the model you mentioned is the most hardest to find... ) Better would be something like an OPL2, OPL3 or OPL4 chipset, but i guess it would be too much CPU overhead generating sounds with these devices... But, any memory-mapped sound generator with TTL level analog output should be okay. Which means... Quote Link to comment Share on other sites More sharing options...
Bryan Posted January 15, 2004 Share Posted January 15, 2004 It wouldn't be easy. SID isn't like POKEY where you give it 5V and a Clock and all is well. -Bry Quote Link to comment Share on other sites More sharing options...
.thumb.jpg.74d5183f8a8eb1828ba82cf052d5cf85.jpg)
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
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.