On the 2560 I loved the feature to add external RAM, but it had to be bankswitched.
On the DUE now, I do have speed and a good basis for RAM but I cannot extend (behold some SPI RAMs which are ... small ... by all means).
We got 24bit address range but no wire to plug the RAM in, right?
All that remains is to use a software library to interface some static RAM??
I could cry! =(
Anybody having a clue on alternatives (do LARGE SPI RAMs exist maybe in the range of 512kB or anything else I can do with reasonable effort?)
I am not sure what kind of RAM you mean, but you can use ordinary parallel RAM (and ROM), if you have some IO pins left and multiplex them to drive what the memory needs. Was that what you meant by banking?