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Registered: ‎08-29-2013

Vivado simulation

I'm receiving the following error when trying to simulate a Verilog memory model of a QSPI FLASH device that is provided by Micron.  Has anyone else encountered this error message?


INFO: [USF-XSim-97] Finding global include files...

ERROR: [Common 17-58] '' is not a valid first class Tcl object


    while executing
"list_property $file_obj"
    (procedure "xcs_is_bd_file" line 23)
    invoked from within
"xcs_is_bd_file $vh_file"
    ("foreach" body line 14)
    invoked from within
"foreach vh_file $vh_files {
    set vh_file_obj {}
    if { [info exists a_sim_cache_all_design_files_obj($vh_file)] } {
      set vh_file_obj $a_sim_..."
    (procedure "usf_get_include_file_dirs" line 30)
    invoked from within
"usf_get_include_file_dirs $global_files_str $prefix_ref_dir"
    (procedure "usf_get_other_verilog_options" line 46)
    invoked from within
"usf_get_other_verilog_options $global_files_str other_ver_opts"
    (procedure "usf_get_files_for_compilation_behav_sim" line 29)
    invoked from within
"usf_get_files_for_compilation_behav_sim $global_files_str"
    (procedure "::tclapp::xilinx::xsim::usf_get_files_for_compilation" line 16)
    invoked from within
"::tclapp::xilinx::xsim::usf_get_files_for_compilation global_files_str"
    (procedure "usf_xsim_setup_simulation" line 70)
    invoked from within
    (procedure "tclapp::xilinx::xsim::setup" line 19)
    invoked from within
"tclapp::xilinx::xsim::setup { -simset sim_1 -mode behavioral -run_dir C:/projects/MissleWarningSystems/FPGA_Development/Xilinx/qspi_testbench_verilog/..."
ERROR: [Vivado 12-4473] Detected error while running simulation. Please correct the issue and retry this operation.
ERROR: [Common 17-58] '' is not a valid first class Tcl object.

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1 Reply
Registered: ‎04-24-2013

Re: Vivado simulation


Hi @bdillahuntdra,


Can you provide more information on what you are doing including the following:


What version of the tools that you are running and on what operating system?

What type of simulation you are trying to run?

How are you running the Simulation e.g. from the GUI, generated scripts, your own scripts etc?

Do you have a test case that you can provide that shows the issue?

Which IP are you using?


What steps are required to replicate the issue?


The more information that you can provide about this issue the better we can help.


Best Regards


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