Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

output GPIO on DE2

Hello I m trying to use the output GPIO on the DE2 board and cannot even get the clock to output. I have pin one out of a breakout board running through a 1k and then to Comm. My code was imme...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

--- Quote Start ---

Do I assign like this?

GPIO_1(1) <=clock_27;

--- Quote End ---

Yep, like that.

Perhaps clock_27 has an issue.

Why not start with 


GPIO_1(0) <= '0';
GPIO_1(1) <= '1';

And see if you get the two different voltage levels on your GPIO pins.

If you don't want to probe with a voltmeter or scope, use the LEDs.

Cheers,

Dave