Ralphy Rocket Posted March 25, 2020 Share Posted March 25, 2020 (edited) I totally forgot I did this a long time ago...1 meg dynamic ram (dont ask me what scheme) and a IDE interface for my 800... you can just see the decoded address being intercepted from the other 2 slots Edited March 25, 2020 by Ralphy Rocket 9 1 Quote Link to comment Share on other sites More sharing options...
TGB1718 Posted March 25, 2020 Share Posted March 25, 2020 Nice to see what we got up to all those years ago, but more importantly did it work ? and do you have any circuit diagrams/scetches of what you built ? Quote Link to comment Share on other sites More sharing options...
ClausB Posted March 26, 2020 Share Posted March 26, 2020 Looks like that 74HC373 latch has 6 output bits wired, so it's probably 64 banks of 16K. Quote Link to comment Share on other sites More sharing options...
Ralphy Rocket Posted March 26, 2020 Author Share Posted March 26, 2020 21 hours ago, TGB1718 said: Nice to see what we got up to all those years ago, but more importantly did it work ? and do you have any circuit diagrams/scetches of what you built ? Yup it worked. when i do these things its just for fun. i dont have any diagrams. there was also modifications to the mother board , thats not shown. but i will re build it and post the schematics. 1 Quote Link to comment Share on other sites More sharing options...
Ralphy Rocket Posted March 26, 2020 Author Share Posted March 26, 2020 3 hours ago, ClausB said: Looks like that 74HC373 latch has 6 output bits wired, so it's probably 64 banks of 16K. hahaha! CLAUS you have influence on this!!! i know i read your article and ran with it!!! If i remember correctly...yes!..16k banks and I split the PIA address space and used it for bank select...you can see the 373 select line hanging off the board, it went to other decoding inside the 800 ('138???) i didnt open it yet..... again..just for shits and giggles. I would love to replicate this setup with static ram...may I reach out to you for technical advise sir?? 1 Quote Link to comment Share on other sites More sharing options...
ClausB Posted March 26, 2020 Share Posted March 26, 2020 Which article was that? Sure, I'll help. 3 Quote Link to comment Share on other sites More sharing options...
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.