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Altera_Forum's avatar
Altera_Forum
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7 years ago

JTAG and AS configuration on Cyclone IV

Hi, I am making a circuit with Cyclone IV and I see various schematics. I would like to understand if I can only use the AS connector in my circuit, and in this case, can I leave the lines...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
7 years ago

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I would like to understand if I can only use the AS connector in my circuit, and in this case,

can I leave the lines TDI TDO TMS and TCK free?

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It's possible to omit JTAG interface, but you can neither use JTAG debug functions nor boundary scan for in circuit test then. Why not implement JTAG only and program AS flash through JTAG using jic method?