The Design Of Solid-state Storage System Having A Power Off To Storage Function

In order to meet the rapid development of space science and technology,solid-statestorage system technology must continue to improve.At present, China has developed the ourcountry having developed the solid-state memory can meet the needs of the majority ofaerospace systems. According to the need of having power off to storage function ofsolid-state memory in space system presents a new hardware design ideas and coding modeThe solid-state storage system having Survivor function with power off is completedbased on the third generation FPGA maked by Xilinx company as the main control chip.Based on the design requirements, Selecting the RS422communication interface to completethe reception of various parameters in space system; Selecting low-voltage differential LVDScommunication interface to complete the receive to image data fragments collected byaerospace systems.At the same time, In order to ensure the confidentiality of the dataadopting the new encoding technology of the dual-channel mixing to enable data stored inshared area of the one flash, The selected flash K9WBG08U1M is manufactured by Samsung.According to the requirements that the original data storage on the re-power solid-statestorage system after a power failure and split treatment, A dual chip select alternate biplanepage programming is innovative used.In shell’s design, the system ensure the reliability of solid-state storage system forreceiving data through multiple protection for the storage board. The solid state storagesystem designed through the high G shock and vibration test, having successfully meet therequirements of aerospace systems about the technology of solid state storage system.