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Visitor ellinni1
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Registered: ‎09-02-2015

Link Training State Machine Stuck in Polling for TRN PCIe on ml605

I'm using xapp1052 to implement a PCIe endpoint design (v1.7), x4 gen 2, 250MHz on the ml605.  During link training, the ltssm state machine seems to be stuck at b0100, or polling.   Occasionally it will get to b1000, still polling. 

 

this Xilinx solution and also AR#63182 document similar problems using the PCIe over AXI, in V6 and V7 which required a bug fix in one of the Xilinx-generated verilog files.  Perhaps there is a similar fix for TRN on V6? 

http://www.xilinx.com/support/answers/63182.html

 

 

Help, please!

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