Hi. I designed a board with LPC1788 and external sdram (K4s 32MB 16Bit)and all parts work correct. so, I use RTX keil in my project and because of the some tasks which require big stack (I use emWIN), MCU SRAM is almost full. I defined some variables in ext. SDRAM. my question is that can I use SDRAM for define stack memory? (Can I use SDRAM for stack memory)? Thanks.
If it works as normal RAM it will work as stack, you should however benchmark as it will likely be slower and impact the speed of execution.
How can the manufacturer verify that the SDRAM is eternal?
I think they map testing into the ethereal plane and use a transform.