第46卷第3期2023年6月电子器件ChineseJournalofElectronDevicesVol.46No.3June2023收稿日期:2022-03-24修改日期:2022-06-06DesignandImplementationofDualModeFileSystemBasedonMarineInstrumentLIChunqian1,2,ZHANGChenglun2∗,YINHang2,LUZeyu2,LIMeng1(1.FacultyofInformationScienceandEngineering,OceanUniversityofChina,QingdaoShandong266000,China;2.R&DCenterforMarineInstrumentsandApparatuses,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao),QingdaoShandong266000,China)Abstract:TFcardisusuallyusedformarineinstrumentsfordatastorageandthedataarereadfromtheinstrumentthroughasyn⁃chronoustransceivertransmission(UART)mode.However,thereadingspeedisslowandthereliabilityislow.Iftheinstrumentisdisas⁃sembledandtheTFcardistakenoutforreading,itstightnessmaybereducedduetorepeateddisassemblyandassembly,andthereisariskofwateringress.Accordingtotherequirementsofmarineinstrumentfordatatransmissionrate,reliabilityandinstrumentsealing,adual⁃modefilesystemofstoringdataserialperipheralinterface(SPI)modeandreadingdatasecuredigital(...