最新csr蓝牙固件（firmware介绍课件ppt.ppt

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1、CSR蓝牙固件（FirmWare）介绍FirmwareCategoriesSeveralvariantsoftheBlueCorefirmwareareavailable.Thesetargetdifferentapplicationareasandmarketsegments.Allthevariantsareproducedfromthesamesourcecodetree.FirmwareCategories-HCIBuildThetraditionalarchitecturesplitsfunctionalitybetweentheBluetoothmoduleandaho

2、stattheHCIlevel.Thisoffersthemosthardwareflexibility.Aseparatemicroprocessorisrequiredtoimplementthe“higherlayers”.HCIUpperLayerDriverL2CAPSDPRFCOMMTCS-BINAdaptedProtocols(TCP/IP,WAP)ApplicationCodeandUserInterfaceBluetoothRadioBluetoothBaseband(LinkController)LinkManager(LM)HCILowerLayerDrive

3、rHostHardwareBluetoothModuleFirmwareCategories-HostTransportBlueCoresupportsseveraltransportsbetweenitselfandthehost:H:2(HCIUSBTransportLayer)H:4(HCIUARTTransportLayer)BCSP(BlueCoreSerialProtocol)RawUART(enablescustomprotocolsfromVMapplications)CombiningsupportforallofthesetransportswithRFCOMM

4、requiresmorethan4Mbitofprogrammemory.Hence,somefirmwarebuildsonlycontainsupportforasinglehosttransport.Supportforself-testinproductionmaybeomittedfromsomebuildsforthesamereason.FirmwareCategories-BlueCoreVariantSeparatefirmwarebuildsarerequiredfordifferentmembersoftheBlueCorefamily.Currentlytw

5、ovariantsaresupported:BlueCore01bBlueCore2-ExternalAdditionalbuildvariantswillbeproducedasrequired.FirmwareCategories-EncryptionSomecountriesplacerestrictionsonthelengthofkeysthatmaybeusedforencryption.Tocomplywiththeserestrictions,theBlueCorefirmwarecanbesuppliedwithalimitofeither56bitsor128b

6、itsonthemaximumlengthofencryptionkeys.Thislimitisabsolute;itoverridesanysettingsinpersistentstore.FirmwareCategories-MatrixofBuildsThebasicfirmwarebuildvariantsarecurrently:Allofthesecanbecombinedwiththefollowing:BlueCore01borBlueCore2-External56bitor128bitencryptionFirmwareCategories-CurrentC

7、ombinationsThefollowingfirmwarebuildcombinationsarecurrentlyproduced:HCIwithDFUforBC01b56bitencryptionHCIwithDFUforBC01b128bitencryptionHCIwithDFUforBC2-External56bitencryptionHCIwithDFUforBC2-External128bitencryptionRFCOMMforBC01b56bit