Hello, I'm planning to design a small board that receives Gigabit ethernet data and saves the data to CFAST 2.0 Compact Flash card using the SATA interface. In the event that main power is cut I need to close the data file on the Compact Flash correctly. How can I provide a backup power supply for my board that will provide at least a minute of power for the AM3874 processor and the CFAST card? What options do I have to provide a small amount of power so the file that I am writing to on the memory card can be closed correctly?
Thank you
