Hello everyone. I'm building a 4 in 1 multicart right now. I know how to hijack the top two address pins of the prom and run it through a 74ls161 to switch between roms with the reset button. What I'm having trouble with is doing the same thing with the sram. I think I've assumed incorrectly thinking I could do the same thing by hijacking the rop two address pins. But that's not working for me. If anyone could give me some advice here I would great,y appreciate it.
I'm trying to use a 256k sram chip and split it into 4 , 64k banks.
And thank you in advance for your help.
I'm trying to use a 256k sram chip and split it into 4 , 64k banks.
And thank you in advance for your help.