Xilinx zcu102 build failure

[Liana Koleva]

Upon running command litex-boards/litex_boards/targets/xilinx_zcu102.py --build, I experience a failure during the placement step:
# place_design -directive default Command: place_design -directive default Attempting to get a license for feature 'Implementation' and/or device 'xczu9eg' INFO: [Common 17-349] Got license for feature 'Implementation' and/or device 'xczu9eg' INFO: [DRC 23-27] Running DRC with 4 threads INFO: [Vivado_Tcl 4-198] DRC finished with 0 Errors INFO: [Vivado_Tcl 4-199] Please refer to the DRC report (report_drc) for more information. Running DRC as a precondition to command place_design INFO: [DRC 23-27] Running DRC with 4 threads ERROR: [DRC BIVB-1] Bank IO standard Support: Bank 47 has incompatible IO(s) because: The LVDS I/O standard is not supported for banks of type High Density. Move the following ports or change their properties: clk125_p INFO: [Vivado_Tcl 4-198] DRC finished with 1 Errors ERROR: [Vivado_Tcl 4-23] Error(s) found during DRC. Placer not run. INFO: [Vivado_Tcl 4-199] Please refer to the DRC report (report_drc) for more information. INFO: [Common 17-83] Releasing license: Implementation 8 Infos, 0 Warnings, 0 Critical Warnings and 2 Errors encountered. place_design failed place_design: Time (s): cpu = 00:00:10 ; elapsed = 00:00:05 . Memory (MB): peak = 4947.023 ; gain = 0.000 ; free physical = 3857 ; free virtual = 8858 ERROR: [Common 17-39] 'place_design' failed due to earlier errors. while executing "place_design -directive default" (file "xilinx_zcu102.tcl" line 49) INFO: [Common 17-206] Exiting Vivado at Fri Sep 22 16:58:49 2023... Traceback (most recent call last): File "/home/liana/git/litex_main/litex-boards/litex_boards/targets/xilinx_zcu102.py", line 59, in <module> main() File "/home/liana/git/litex_main/litex-boards/litex_boards/targets/xilinx_zcu102.py", line 52, in main builder.build(**parser.toolchain_argdict) File "/home/liana/git/litex_main/litex/litex/soc/integration/builder.py", line 367, in build vns = self.soc.build(build_dir=self.gateware_dir, **kwargs) File "/home/liana/git/litex_main/litex/litex/soc/integration/soc.py", line 1332, in build return self.platform.build(self, *args, **kwargs) File "/home/liana/git/litex_main/litex/litex/build/xilinx/platform.py", line 85, in build return self.toolchain.build(self, *args, **kwargs) File "/home/liana/git/litex_main/litex/litex/build/xilinx/vivado.py", line 140, in build return GenericToolchain.build(self, platform, fragment, **kwargs) File "/home/liana/git/litex_main/litex/litex/build/generic_toolchain.py", line 123, in build self.run_script(script) File "/home/liana/git/litex_main/litex/litex/build/xilinx/vivado.py", line 396, in run_script raise OSError("Error occured during Vivado's script execution.") OSError: Error occured during Vivado's script execution.

I have attached the whole console output: out.txt.

[Liana Koleva]

Resolved by changing IOStandard from "LVDS" to "LVDS_25" in litex-boards/litex_boards/platforms/xilinx_zcu102.py. Submitted PR to litex-boards repo.