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Altera_Forum's avatar
Altera_Forum
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11 years ago

GPIO on Qsys

Hi, I am using the Quartus web edition to program a DEO-Nano board. I intend to use the GPIO header of the board to send data to a DDS. I wanted to use Qsys to design it but I can't find the GP...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Run through these two example designs;

Post#2: de0_nano_basic.zip

http://www.alteraforum.com/forum/showthread.php?t=39765

Post#2: de0_nano_sdram.zip

http://www.alteraforum.com/forum/showthread.php?t=45927

This example contains a Qsys system and uses GPIO, so will have features similar to what you are looking for.

In your case, where you want to communicate with a DDS, you will need to determine what the DDS interface protocol is, eg., is it a serial interface like SPI, or is it a parallel interface. If you have a part number, I can look at the data sheet and comment on what you would need to do.

Cheers,

Dave