使用sam-ba调试的初始步骤..doc

使用SAM-BA调试的初始步骤AT91SAM7S板可以使用SAM-BA?软件通过DBGU或者USB口编译。但是AT91SAM7S系列芯片,出厂后并没有将SAM-BABoot固件复制到FLASH存储器的头两个区,所以当第一次通过USB连接目标板和PC机的时候,需要按照“以下的步骤来复制SAM-BABoot固件到FLASH并运行。;;;;;;;:插上USB线,将提示“无法识别的硬件”,“SAM-BAGUI”,就可以接着使用USB口下载文件到AT91SAM7S板。SAM-BA调试的硬件要求:-DBGUG的硬件要求使用3~20MHz的石英震晶(软件自调适);-;USB的PIOA16口需要上拉电阻;/SAM-BA%--May2005Thebelowprocedureisapplicableto:AT91SAM7S32&AT91SAM7S64startingfromrevE(productID:58814E)AT91SAM7S128&AT91SAM7S256startingfromrevC(productID:58818C)GettingStartedwithSAM-BAon the SAM7S-EKEvaluationKitTheAT91SAM7S-EKisreadytousetheSAM-BA™-BA,arecoveryprocedurewhichconsists ofcopyingtheSAM-BABootAssistantintoFlashmustbeperformedasfollows:PowerdowntheSAM7S-EKClosetheJumperJP5namedTSTPoweruptheSAM7S-EKWait10sPowerdown theSAM7S-EKRemovetheJumperJP5namedTSTPoweruptheSAM7S-EKSAM-BABootAssistantisnowavailableinthefirsttwosectorsoftheon-chipflashandreadytouse. Then,youcanstartusingtheSAM-BAGUItointerfacewiththeSAM-BABootAssistantasdescribedintheSAM-BAUserGuideavailableinthe"on-line" SAM-BAon your AT91SAM7S-baseddevicesapplication?TheAT91SAM7S devicesfeaturetheSystemRecoveryprocedurewhich restorestheSAM-BA™