Software and SpaceWire evaluation of SOI-SOC3: SpaceWire components, short paper

SOI-SOC3 is a radiation hardened space-grade SOC implementing reliable SpaceWire protocol such as SpaceWire-R and SpaceWire-D. SOI-SOC3 realizes high performance in SpaceWire link speed, reliable communication technology such as data division, retransmission control, and real-time communication using time synchronization and scheduling system. These technologies are based on SOI-SOC2 technology that realized high throughput, radiation hardened, and low power consumption using commercial SOI process technology. Since such reliable SpaceWire communications are realized by various middleware, users can use reliable SpaceWire protocols just by calling specific APIs. Due to its reliability, SOI-SOC3 is applicable to not only space-grade products but also wide range of fields requiring high reliability and environment resistance such as power plants and medical devices. We have been planning to port cFE/cFS (Core Flight Executive/Core Flight System) to SOI-SOC3. Before manufacturing ASIC, we have evaluated basic function of SpaceWire on SOI-SOC3 implemented on FPGA. In this paper we describe the evaluation results of SpaceWire function of SOI-SOC3 evaluation board and its software including middleware.