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Altera_Forum's avatar
Altera_Forum
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11 years ago

Use different voltages on GPIO

Hi, Small summary: I am using GPIO ports on a Stratix-IV based board to interface it with a PCB that has an optical switch. I am using the GPIO ports to dynamically control the switches, by app...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

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Let`s say, define a logical 0 to be 0.7 V and a logical 1 to be 3.3V?

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You can't do this, you can select from preset logical levels throught I/O standards but voltage on the board (VCCIO) should be compatible