I created a simple test case using the ATG generating random read patterns, and I am seeing a problem after about 300 us in the simulation.
The Zynq BFM stops asserting ARREADY.
If I Run the simulation for 400 us after the 300 us mark the BFM stops responding.
When I tried this in Vivado 2014.3, ARREADY stops asserting after about 5361 us.
This is a bug with the AXI BFM simulation models.
There is a patch issued to workaround the issue.
The fix is included in Vivado 2015.2.
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