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Altera_Forum
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13 years ago

Cyclone IV - Using high impedance in GPIO

I have a project with 14 bidir. I use to test integrated circuits from college. i use the 36 gpio pins in a protoboard with a flat cable. but when i put the bidir in high impedance, all output...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

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So, why can I do?

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What's the problem?

If you need them low add very high value pull down resistors from each line to gnd.

?

Nial