Most of the examples expect the simulator to support several VHDL 2008 features.
This is made explicit by using
context instead of multiple
However, some vendors do support enough VHDL 2008 features in order to run some of the examples, but they cannot
In those cases, replacing
context vunit_lib.vunit_context with the content of vunit/vhdl/vunit_context.vhd
and vunit/vhdl/data_types/src/data_types_context.vhd might work.
com message passing package which can be used
to communicate arbitrary objects between processes. Further reading
can be found in the com user guide.
JSON-for-VHDL library which can be used to parse JSON content.
The content can be read from a file, or passed as a stringified generic.
This is an alternative to composite generics, that supports any depth in the content structure.
A more realistic test bench of an UART to show VUnit VHDL usage on a typical module.
Demonstrates the AXI read and write slave verification components as well as the AXI-lite master verification component. An AXI DMA is verified which uses an AXI master port to read and write data from external memory. The AXI DMA also has a control register interface via AXI-lite.
VHDL User Guide#
The most minimal VUnit VHDL project covering the basics of the User Guide.
Demonstrates generating multiple test runs of the same test bench
with different generic values. Also demonstrates use of
to create test bench output files in location specified by VUnit python runner.
Demonstrates compiling and performing behavioral simulation of Vivado IPs with VUnit.
Demonstrates VUnit’s support for logging.
integer_array_t data type, which can be used to
handle dynamically sized 1D, 2D and 3D data as well as storing and
loading it from csv and raw files.
Demonstrates the VUnit check library.
Demonstrates the VUnit run library.
Array and AXI4 Stream Verification Components#
Shows how to use
A CSV file is read, the content is sent in a row-major order to an AXI Stream buffer
(FIFO) and it is received back to be saved in a different file. Further information can
be found in the verification component library user guide,
in subsection Stream and in
A more realistic test bench of an UART to show VUnit SystemVerilog usage on a typical module.
SystemVerilog User Guide#
The most minimal VUnit SystemVerilog project covering the basics of the User Guide.