Magnetically suspended flywheel (MSFW) serves as actuator in the high precision attitude control of spacecrafts such as satellites.Magnetically suspended flywheel (MSFW) for space application requires fault-tolerant and highly adaptive real-time controller. Field programmable gate array (FPGA)

owing to its high reliability and flexibility

offers a flexible platform the development of space applications. This paper use the idea of on-chip hardware and software co-design and presented an FPGA-based digital controller with LEON soft core processor subsystem for active magnetic bearing (AMB) of space MSFW. A prototyping platform is designed to test algorithms and verify system performance. At last

a self-repairing FPGA-based AMB controller is proposed

which in theory can significantly improve system reliability.