Do you mean that you have your framebuffers in SDRAM and that works?
Then this is only using 16bit access (assuming you have 16 bit colors) and maybe only is large chunks.
Try to see if you can read and write chars in the first addresses of the frame...
Hello Cleonb322
You should start by testing your SDRAM. Write a program that write bytes, shorts, and words to different addresses in the SDRAM. Then read the values to check that it is correct.
It is important that you can write bytes in all address...
BTW, what is the reason to move the heap to SDRAM? How big is your heap?Maybe you can move just one big element to SDRAM. E.g. if you have a big array in Model.