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Altera_Forum
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14 years ago

Altera DE0-nano with an LCD connected

Hey everyone, for a project of mine I am using the Altera DE0-nano board. I want to display some text on a 2x16 LCD which is connected via GPIO_0. The controller for the LCD is HD44780 compatib...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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It can also be operated using 3.3V (p. 11), but the GPIO on the board delivers 5V or 3.3V depending on what VCC you use. I'm running it in 5V operation mode. Does this mean that I need at least a voltage of 3.5V in order to get a high signal?

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No, it means you'll damage your DE0-nano board.

Do not operate it at 5V unless you have either level translators or voltage clamps (I'm pretty sure the DE0-nano does not have them).

Cheers,

Dave