curtis Posted September 6, 2019 Share Posted September 6, 2019 So, I've been playing with the ROM board from Retro Innovations and am quite impressed with it. However, I'm curious. There are several components not needed for the ROM version and am wondering if this same board could be used for a RAM upgrade. It looks like it could given there is a place for a 3v battery. If this can be used for a RAM upgrade, what components would be used and what is the max RAM that can be installed? Would all the RAM be available or would it be paged? Curtis Quote Link to comment Share on other sites More sharing options...
+arcadeshopper Posted September 6, 2019 Share Posted September 6, 2019 So, I've been playing with the ROM board from Retro Innovations and am quite impressed with it. However, I'm curious. There are several components not needed for the ROM version and am wondering if this same board could be used for a RAM upgrade. It looks like it could given there is a place for a 3v battery. If this can be used for a RAM upgrade, what components would be used and what is the max RAM that can be installed? Would all the RAM be available or would it be paged? CurtisThere's a ram board also but they are separate.. It has battery backed RAMSent from my LM-G820 using Tapatalk Quote Link to comment Share on other sites More sharing options...
brain Posted September 7, 2019 Share Posted September 7, 2019 The RAM cart design is good for 512kB RAM (AS6C4008 or similar) with 16 banks of 32kB RAM). If there is interest, I can make a design with a soft banking scheme, so you can use all 512kB at one time from program control Jim 3 Quote Link to comment Share on other sites More sharing options...
curtis Posted September 7, 2019 Author Share Posted September 7, 2019 21 hours ago, brain said: The RAM cart design is good for 512kB RAM (AS6C4008 or similar) with 16 banks of 32kB RAM). If there is interest, I can make a design with a soft banking scheme, so you can use all 512kB at one time from program control Jim I, for one, would be interested. Quote Link to comment Share on other sites More sharing options...
brain Posted September 27, 2019 Share Posted September 27, 2019 OK, let me clear a few projects off the bench... 1 Quote Link to comment Share on other sites More sharing options...
curtis Posted September 27, 2019 Author Share Posted September 27, 2019 Why clear the bench? That's the way to lose stuff. Just shove it into a corner. Ask me how I know!!! 2 Quote Link to comment Share on other sites More sharing options...
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