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Altera_Forum's avatar
Altera_Forum
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16 years ago

Cannot detect device with own JTAG cable

Hello, I have just placed a MAXII on a custom board and am trying to program it with a ByteBlaster cable made following the usual schematics online. The programmer reports: Error: ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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-TMS does nothing (stays high)

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JTAG can't work without toggling TMS. Either the ByteBlaster is defective or you shorted TMS to VCCIO on your board.