Hello Guys, I downloaded xapp1052 example zip file, and wnat to simulate it. We are planning to design one DAQ card by using K7 devices, and the xapp1052's PCIex8 example exactly fit our requirements. However, we encountered several problems when we simulated it. We are using vivado 2018.3, and ModelSim64 10.7 for developing. We opened the example project after unzip xapp1052.zip, and updated it into new vivado version, and we updated the pcie ip from v3.0 to v3.3 too. The project is in folder of "\xapp1052\dma_performance_demo\pcie_7x_0_example". The default simultor is vivado simulator, so we change the simulator to ModelSim. Then compiled the simulation lib for ModelSim. We got "Test FAILED" message after simulation, which is "Test FAILED --- Data Error Mismatch, Write Data 01020304 != Read Data 00020304". Can anybody tell me how to fix this issue? Thanks in advacne!