R2024a Prerelease Key Known Issues

Simulink: Opening DSP & Communications Toolbox Scope Block Windows Could Result in an Error Message

Description: The Spectrum Analyzer, Array Plot, Constellation Diagram and Eye Diagram visualization blocks will present an error message, if the visuals are opened while a Simulink parallel simulation (par-sim) is running.

Workaround: Scopes should remain closed during parallel simulations. If enabled, disable the 'Open at Simulation Start' parameter. Alternatively, to use these scopes, simulate the model without enabling parallel simulation.

Wireless Testbench: Port Data Type Casting

Description: Data type casting for data and register ports on NI USRP Targeting Workflow Simulink models will not behave as expected for many datatypes.

Workaround: Use uint32 type for data and register ports in Simulink, MATLAB host RFNoCRegister interface, and MATLAB host RFNoCStream interface.

Wireless Testbench: Program Target Device from Simulink

Description: Program device from Simulink will fail to program the bitstream.

Workaround: Use the "programFPGA" function in MATLAB as shown in the generated host interface script.

Wireless Testbench: Pure Combinatory DUTs

Description: NI USRP Targeting Workflow will fail to generate a bitstream for a DUT containing only combinatory logic.

Workaround: Connect an input or output port on the DUT to a synchronous element. For example, add a "delay" block, connected to a read register.

Wireless Waveform Generator: Use of 300-series USRPs

Description: 300-series USRPs (X3xx and N3xx) now require Wireless Testbench Support Package for NI USRP Radios. In the R2024a Prerelease, an error will occur when trying to use them in the Wireless Waveform Generator, saying Communications Toolbox Support Package for USRP Radio is required.

Workaround: Install Communications Toolbox Support Package for USRP Radio.

For more information on bugs potentially fixed in the prerelease, view the Bug Reports.

Questions?

If you have any questions, please submit a service request or call Technical Support at 508-647-7000.

Content updated: December 13, 2023