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Altera_Forum
Honored Contributor I
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Flex&QuartusⅡVer9.0 [JTAG chain problem detected]

Hello, 

Please refer to attached file. 

 

I have a FlexSeries[EPF6024AQC240-2&EPC1441PCB] on Board,USB Blaster,Quartus software Ver9.0,Install Program[pof file&sof file] 

 

And I want to Install Program file to [EPF6024AQC240-2&EPC1441PCB]. 

But appear error. 

Error:JTAG chain problem detected 

Error:No device detected 

Error:The TD0 connection to the download cable might be shorted to GND or is an open circuit 

Error:The TCK and TMS connections to the last device might have problem 

 

Maybe It's in the state that ,can't communicate. 

Is special setting needed there? 

 

Please give me your advice.
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