B_PCIE_3_0: CFGPHYLINKSTATUS keep low

[southernduck]

Hi,

I am simulating pcie3_7x_0_ex in VCSMX and the CFGPHYLINKSTATUS of B_PCIE_3_0 keeps low which results in user_reset asserted and failed to pass the test.

The same test passed in Vivado simulation.

Any suggestions?

thanks.

[venkata]

which vivado version are you using?

can you check by changing VCS command line args DEBUG_PP to DEBUG or DEBUG_ALL?

[southernduck]

Hi,

I'm using Vivado 2016.4.
And I am using -debug_all as command line arg.

Thanks

[southernduck]

Vivado 2016.3 failed, too.
Could you please help to take a look?

[venkata]

Can you please share the .xci file of the IP?

[southernduck]

Where should I upload it to?

[southernduck]

You can generate the .xci file by simply using default settings.

[venkata]

I tried the simulation of IP example design with the default options of the GUI. The simulation has successfully completed with VCS simulator 2016.06. I have attached .xci file of the IP used to test. 

If you can give the .xci file of the IP with you, it can help to use the same IP that you are using.

[southernduck]

Attached, thanks in advance.

[venkata]

apologies for the long delay in responding. I find the issue you have reported is specific to VCS simulator. The IP example design is simulating successfully with Questasim simulator.

I find RP is stuck and serial lines are not toggling with VCS simulator.

Is it possible for you to use the latest vivado release?

[venkata]

I am checking for any known issues specific to the vivado release you are using. I will update you with my findings.

[southernduck]

Hi Venkata,

Thank you for reply.
2018.2 tested, failed.
Could you please take a look?

Thanks & Best Regards,

[venkata]

Can you check the solution mentioned in the AR#67172? I found the simulation is running fine after updating the options during the elaborate stage. I checked this in 2016.3 and 2018.2.
https://www.xilinx.com/support/answers/67172.html

If you are using the GUI flow, try to do the setting as shown in the snapshot below.

One more thing to note, please check the OS support for the VCS simulator version you are using. When I tried the simulation in Ubuntu 16.04.03 OS, I got a warning message saying the OS is not supported in the vlogan.log file.