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Altera_Forum
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18 years ago

JTAG configuration protocol specification

Hello, We're in the process of debugging a JTAG configuration problem (Quartus doesn't recognize the chain that consists of a single CycII device). We try to look at the TDI, TMS, TCK, TDO line...
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Altera_Forum
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18 years ago

Please have a look e.g. at Cyclone III manual chapter 14 BSDL. It's describing very detailed, how the IDCODE instruction is performed at the JTAG interface.