UVM_DPI_Example

Example of DPI-C usage in UVM with AMD (Xilinx) Vivado Simulator (xsim) and Metrics DSim Desktop (dsim)

Usage

• To compile and run all tests
  > make all

• To run individual test
  > make <Test Name>

dsim is automatically used if it is installed and properly setup on your terminal. xsim is used otherwise.

You can edit dsim.mk and/or xsim.mk to accommodate your environment like tool version, path,etc.

For manual simulator selection.
> make dsim_<command>
> make xsim_<command>

Alternatively,
> make -f dsim.mk <command>
> make -f xsim.mk <command>

Test Description

• simple_test
  Conventional UVM sequence test without DPI-C
• dpi_test1
  C/C++ sequence test with DPI-C
• dpi_test2
  Conventional UVM sequence test which gets values from C/C++ side with DPI-C
• unite_test
  Executes all three sequences above in a row

DPI-C import/export part

"In_Agent/in_agent_pkg.sv"

  import "DPI-C" context function void dpi_get_val(inout int Val_A, Val_B);

 //---------- For C_Program ---------------
  import "DPI-C" context task C_Program();
  export "DPI-C" sv_write = task write;
  export "DPI-C" sv_read  = task read ;