请问6455的Jtag Emulator问题

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 楼主| gongfutea 发表于 2007-2-5 12:15 | 显示全部楼层 |阅读模式
dsp进不了Enulator&nbsp;请问以下是什么原因造成的,请高人指点<br /><br />(测到:sysClk正常,tck&nbsp;tdi正常,无tdo,而且clkout不稳定)<br /><br />Error&nbsp;connecting&nbsp;to&nbsp;the&nbsp;target:<br />Error&nbsp;0x80000240/-291<br />Fatal&nbsp;Error&nbsp;during:&nbsp;Initialization,&nbsp;OCS,&nbsp;<br />This&nbsp;error&nbsp;was&nbsp;generated&nbsp;by&nbsp;TI's&nbsp;USCIF&nbsp;driver.<br /><br />SC_ERR_TST_MEASURE&nbsp;&lt-291&gt<br />The&nbsp;built-in&nbsp;scan-path&nbsp;length&nbsp;measurement&nbsp;has&nbsp;failed.&nbsp;This&nbsp;indicates<br />that&nbsp;the&nbsp;JTAG&nbsp;controller&nbsp;cannot&nbsp;reliably&nbsp;communicate&nbsp;with<br />the&nbsp;target&nbsp;DSP's&nbsp;and&nbsp;micro-controllers&nbsp;at&nbsp;that&nbsp;frequency.<br />Try&nbsp;specifying&nbsp;the&nbsp;scan-path&nbsp;lengths&nbsp;in&nbsp;the&nbsp;board&nbsp;configuration<br />file&nbsp;because&nbsp;the&nbsp;built-in&nbsp;scan-path&nbsp;reliability&nbsp;tests&nbsp;cannot&nbsp;be<br />performed&nbsp;without&nbsp;knowledge&nbsp;of&nbsp;the&nbsp;scan-path&nbsp;length.<br /><br /><br />Sequence&nbsp;ID:&nbsp;0<br />Error&nbsp;Code:&nbsp;-291<br />Error&nbsp;Class:&nbsp;0x80000240<br /><br />Board&nbsp;Name:&nbsp;C6455&nbsp;XDS560&nbsp;Emulator<br />Cpu&nbsp;Name:&nbsp;C6400PLUS_0<br /><br />Abort:&nbsp;&nbsp;Close&nbsp;Code&nbsp;Composer&nbsp;Studio.<br />Retry:&nbsp;&nbsp;Try&nbsp;to&nbsp;connect&nbsp;to&nbsp;the&nbsp;target&nbsp;again.<br />Cancel:&nbsp;&nbsp;Remain&nbsp;disconnected&nbsp;from&nbsp;the&nbsp;target<br />Diagnostic:&nbsp;Run&nbsp;diagnostic&nbsp;utility.<br />
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