FPGA读写EPCS内容

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1、WhitePaperSRUNNER:AnEmbeddedSolutionforSerialConfigurationDeviceProgrammingIntroductionSRunnerisastandaloneWindowsbasedsoftwaredriverthatallowsusertoprogramAlteraSerialConfigurationDevices(EPCS1,EPCS4andEPCS16),usingByteblasterIIdownloadcable.ThecodeisdevelopedandtestedinWindowsXPplatform.SRunn

2、ersoftwarecanbeeasilymodifiedandportedtoothersystemorembeddedsystemforprogrammingtheEPCS.TheinputfiletoSRunnerisRawProgrammingData(RPD)file,whichisgeneratedbyQuartusIIversion2.2SP2andabove.SRunnerreadstheRPDfileandprogramsthedatatoEPCSviaserialinterface.Figure1.1:SRunnerConceptSRunnerFeaturesSR

3、unnersoftwaredriverhastwobasicfeaturesto:1.ProgramEPCSwithRPDfileBeforeprogramming,SRunnerwillchecktheEPCSsiliconIDtodeterminetheEPCSdevicemaximummemorysize.ThisistoensurethattheRPDfilesizedonotexceedEPCSmaximunmemorysize.AlltheEPCSdataiserasedusing“EraseBulk”operationcodebeforetheprogrammingst

4、age.Duringprogrammingprocess,SRunnerwillreadtheconfigurationdatafromtheRPDfileandsendthedatatotheEPCSviatheparallelport.ConfigurationdataisprogrammedintoNovember2004,ver.3.01WP-CYCEPCS-3.0SRUNNER:AnEmbeddedSolutionforSerialConfigurationDeviceProgrammingAlteraCorporationtheEPCSusing“WriteBytes”o

5、perationcode.DataiswrittenbytebybyteintotheEPCSfromtheRPDfile.OncealltheconfigurationdataisprogrammedintotheEPCS,SRunnerwillverifyEPCSdataagainsttheRPDfiledatabydoingbytebybytecomparisonofbothdata.EPCSdataisreadoutbyusing“ReadBytes”operationcode.2.ReadbackofEPCSdataWiththisfeature,SRunnerwillcr

6、eateafiletostorethedatafromEPCS.SRunnerwillreadtheEPCSdatabyusing“ReadBytes”operationcodeandstorethedatabytefromEPCSinthisfile.ExecutingSRunnerUserhavetoentersomecommandinstructionwhenexecutingtheSRunnersoftwaredriver:Table3.1:InstructionforSRunnerInstructionActionsrunner-program.rpd

7、Toopen.rpdfileandprogramthedataintherpdfileintoEPCSsrunner-read.rpdToreadoutEPCSdataandsaveinthe.rpdfileFigure3.1:ProgrammingEPCSwiththe“srunner–program.rpd”command2AlteraCorporationSRUNN