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Home Forums 68kMLA Designing a portable RAM card — #129
Post #129 by techknight
Source Forum68kMLA
CategoryHardware
Post DateWed, 5 Nov 2014 - 01:49
Original URLhttps://68kmla.org/bb/threads/designing-a-portable-ram-card.314/
Post
you can try it, but i doubt itll work.

So what I did was setup 2 CPLD firmwares, one for 9MB, and one for 8MB. I built my 2nd card, and flashed it with 9MB. 

But its giving me a chime loop so I think one of the RAM ICs trag sent is bad. my connections are ok. 

So once I get that fixed, I can dick around and see if I can max the backlit model to 9MB. the non-backlit cannot exceed 8MB ever. unless ROM is moved.

Trying to do this without using the PDS slot, because my next goal is to attach a 68020 to the PDS.  

mp.ls