Keyword: Initialization, startup, link status, monitoring
How do I know if my VLYNQ Core has initialized properly?
It is recommended that you monitor the Status Register at address 0x08 to make sure that the VLYNQ core has initialized, and that the link has been established before you attempt to transmit data across the VLYNQ interface.
You can see an example of this by looking at the provided reference design, described in the Getting Started User Guide (UG171):
For a detailed list of LogiCORE VLYNQ Release Notes and Known Issues, see (Xilinx Answer 23509).