hdlcosim

R2026b

Create HDLCosimulation System object

Syntax

hdlc = hdlcosim

hdlc = hdlcosim(HDLSimulator=Simulator)

hdlc = hdlcosim(HDLSimulator='Vivado Simulator')

hdlc = hdlcosim(___, Name=Value)

Description

hdlc = hdlcosim creates an hdlverifier.HDLCosimulation System object™ with default properties. This System object provides an interface to your HDL simulation in your MATLAB^® workspace.

hdlc = hdlcosim(HDLSimulator=Simulator) creates an hdlverifier.HDLCosimulation to use with HDL simulator of choice and default properties.

hdlc = hdlcosim(HDLSimulator='Vivado Simulator') creates an hdlverifier.VivadoHDLCosimulation System object with default properties.

hdlc = hdlcosim(___, Name=Value) specifies additional properties using one or more name-value arguments.

Examples

Create System Object for VCS

Create a System object to use with Synopsys^® VCS^®. Set input and output signals, and specify a socket connection with port number 1234.

To run a cosimulation, see Verify Viterbi Decoder Using MATLAB System Object and HDL Simulator.

hdlc = hdlcosim(HDLSimulator='VCS', ... 
              InputSignals={'/viterbi_block/In1','/viterbi_block/In2'}, ...
              OutputSignals={'/viterbi_block/Out1'}, ...
              OutputSigned=false, ...
              OutputFractionLengths=0, ...
              Connection={'Socket',1234}, ...
              PreRunTime={10,'ns'}, ...
              SampleTime={10,'ns'});

Create System Object for Modelsim

Create a System object to use with the ModelSim™ simulator. Set input and output signals.

To run a cosimulation, see Verify Viterbi Decoder Using MATLAB System Object and HDL Simulator.

obj = hdlcosim( ...
  HDLSimulator='ModelSim', ...
  InputSignals={'/viterbi_block/In1','/viterbi_block/In2'}, ...
  OutputSignals={'/viterbi_block/Out1'}, ...
  OutputSigned=false, ...
  OutputDataTypes={'fixedpoint'}, ...
  OutputFractionLengths=0, ...
  PreRunTime={0,'ps'}, ...
  SampleTime={10,'ps'});

Note

To configure and create a System object for the Vivado^® simulator, use the Cosimulation Wizard.

Input Arguments

HDLSimulator — HDL Simulator for cosimulation

ModelSim | Xcelium | VCS | Vivado Simulator

HDL simulator for cosimulation, specified as one of the following:

• ModelSim — Returns an hdlverifier.HDLCosimulation System object.

• Xcelium — Returns an hdlverifier.HDLCosimulation System object.

• VCS — Returns an hdlverifier.HDLCosimulation System object.

• Vivado Simulator — Returns an hdlverifier.VivadoHDLCosimulation System object.

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Example: hdlc = hdlcosim(HDLSimulator='VCS',InputSignals='in1')

For a complete list of property names and values, see the properties of the returned System object, HDLCosimulation or VivadoHDLCosimulation.

Output Arguments

hdlc — Interface to HDL DUT

HDL Cosimulation System object

Interface to the HDL DUT, returned as an HDL Cosimulation System object, For example:

• hdlverifier.HDLCosimulation

• hdlverifier.VivadoHDLCosimulation

Version History

Introduced in R2012b

R2025a: Create HDLCosimulation System object for use with VCS simulator

To create an HDLCosimulation System object for the Synopsys VCS simulator, use this function and specify VCS for the HDLSimulator property.

R2022a: Create HDLCosimulation System object for use with Vivado simulator

To create an HDLCosimulation System object for the Vivado simulator, use this function and specify Vivado Simulator for the HDLSimulator property.