Error generated when an invalid DRAM type is entered in the CycleAccurate DRAM block.

Error generated when an invalid DRAM type is entered in the CycleAccurate DRAM block.

The type of the DRAM must be one of the following, SDR, DDR, DDR2, LPDDR, LPDDR2_NV, LPDDR2_S2, LPDDR2_S4, DDR3.
If any other type is chosen then the following error will be generated.

"VisualSim.kernel.util.IllegalActionException: VisualSim.data.expr.UndefinedConstantOrIdentifierException: The ID controller_Type is undefined.
  in .CA_DRAM_invalid_DRAM_Type.CA_DRAM.HW_DRAM
at VisualSim.actor.lib.Virtual_Machine.fire(Unknown Source)
at VisualSim.simulators.de.kernel.DEDirector.fireVisualSim(Unknown Source)
at VisualSim.simulators.de.kernel.DEDirector.fire(Unknown Source)
at VisualSim.actor.CompositeActor.fire(Unknown Source)
at VisualSim.simulators.de.kernel.DEDirector.fireVisualSim(Unknown Source)
at VisualSim.simulators.de.kernel.DEDirector.fire(Unknown Source)
at VisualSim.actor.CompositeActor.fire(Unknown Source)
at VisualSim.actor.Manager.iterate(Unknown Source)
at VisualSim.actor.Manager.execute(Unknown Source)
at VisualSim.actor.Manager.run(Unknown Source)
at java.lang.Thread.run(Thread.java:745)
at VisualSim.kernel.util.VisualSimThread.run(Unknown Source) "


Solution: Make sure to use the supported DRAM type,