I'm finding it quite difficult to navigate among the copious memory solutions available when selecting a RAM solution for a tiny embedded system I'm developing.
I will run an OS such as PetaLinux on a Zynq-7000 SoC and nothing more than 32 MB is required for this. Additionally, I will run a simple graphical user interface on a small touch screen.
This is a battery powered device and I really don't want any excessive resources on the board because of space and energy consumption. I feel a few GB of RAM might be very unnecessary. I also don't want to utilise any soon-to-be obsolete technology either.
- Are there any energetic downsides with having excessive RAM or are these negligible?
- For lasting technologies, is DDR3 SDRAM the optimal choice?
- How do RAM types deviate in energy consumption?
Any guidance is highly appreciated!