Channel board I/O

Hi,

I would use the I / O card, DE1SoC.

By following the guide provided by altera, I realized that I have to use interfaces/channel that are in the file "board_spec.xml". However, in this file there are neither interfaces nor the channels that interest me.

I wanted to know if I have to create them to modify the .xml file and therefore also changes the QSYS or before I go to change the QSYS and after updating the .xml.

Thanks