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Altera_Forum's avatar
Altera_Forum
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11 years ago

gpio input stuck on high level '1'

HI, i'm make a project using DE0-nano board. in my project i build a uart that recieve a signals from external bluetooth device and translate their ascii code to turn of the leds of the DEO-Nano. i d...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

You can double check the board schematic to see if there is any signal pulling that input pin to high. Also, check the Fitter report to see if it has internal pull up set or tied to vcc?