I am using a FMCommS4 with a Zedboard. I have checked that in the HDL project for this board there are implemented two different SPI. I have noticed that one of them is passed through the FMC conector and it is use to comunicate the PS with the transreceiver. In the other hand, the other SPI it is made external via some GPIO pins.
Has this SPI a specific purpose ?
Can I use this SPI for my own aims ?
How can I use it ? Is there any tutorial?