6124 - Modelsim: Why do I get an error in license when using Modelsim in VirtualBox?

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• 7327 - ModelSim / QuestaSim: simulation error using a node-locked license in a remote desktop connection

  Description: The following errors may appear: # ** License Issue: License request for latticemsim feature failed # ** License Issue: No such feature exists. (C:\ispLEVER_Classic2_1\license\license.dat) # ** License Issue: Cannot find license file. ...

• What are the considerations when simulating Lattice Diamond devices with VHDL test bench?

  Description: This knowledge database will provide an aided guide when considering simulating Lattice Diamond devices with VHDL test bench top file. Problem: Simulation errors as shown below: Unresolved reference to 'GSRNET' in GSR_INST.GSRNET. ...

• 7733 - ECP5 / Diamond 3.14: Why does my design get a Map device oversize error related to PLL for LFE5U-12F in with Diamond 3.14, but completes map successfully in earlier releases of Diamond software?

  In Diamond version 3.14, there is a bug where it incorrectly limits the number of PLLs in the device to 0 for LFE5U-12F. Example error message: ERROR - (device oversize error). The number of PLL components needed (1) exceeds the number available. ...

• 1242 - Simulation: Modelsim: What does "Fatal : Obsolete library format for design unit" Modelsim error mean?

  Simulation: Modelsim: If the simulation libraries or your design files are compiled with an older version of Modelsim (for example, Modelsim 6.3) and are now being loaded (VSIM) into a newer version of Modelsim (for example, Modelsim 6.5), you will ...

• 2385 - Modelsim:  After executing the orc_cmpl.bat ModelSim VHDL library compilation script, why do I get errors about unexpanded library elements when I compile my design?

  The following online software documents explain how to compile the VHDL source library files for the stand-alone ModelSim flow: from the Lattice Diamond software tool: select Help-> Lattice Diamond Help. In the new pop-up web browser, select ...