Which microcontroller or FPGA if any is preferred for satellite applications? i.e. cubesat.
I have a similar question ( see the detailed explanations here: Easy to use microcontroller for a beginner in Cubesats ). AMSAT is not of much help. They are dealing more with equipments for ground stations.
What I need for my cubesat project is something like an extremely tiny Arduino, the size of a Z80 processor made 30 years ago.