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Altera_Forum's avatar
Altera_Forum
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15 years ago

JTAG and/or IO pin usage

Hello all, I'm new to CPLDs but I'm very keen on getting a little project up and running soon. The basic question is: is it possible to program a EPM3064 through the JTAG pins, then use th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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http://www.altera.com/literature/dp/max3k/epm3064a.pdf

The JTAG pins are dedicated pins that cannot be used as I/O afterwards.

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Oops, my bad, I didn't read note (1) :)

It looks like you can use them as I/O. But perhaps as FvM suggests, its only if you disable JTAG. In that case, you can use the scheme I mentioned.

Cheers,

Dave