Mux

A mux (or multiplexer) taking one of several input lines, and then routing the selected input to a combined output std::vector.

Collaboration diagram for Mux:

The "Mux" is a signal multiplexer which merges several input signals into a single std::vector signal. The input signal are stacked in the output signal: First input signal first element of the output. This Mux object is defined through its parameters, which gives both the number of input ports and the width of these. The sum of all Input port widths must be equal to the output port width.

A figure illustrating the principles of multiplexing.

Author

Karl-Johan Reite

Date

02.03.2007 KJR: Initial version.

20.07.2011 KGA: Ported to 2.0

Example configuration excerpt

<Lib
  LibName      = "fhsim_base"
  SimObject    = "Signal/Mux"
  Name         = "A"
  NumInput     = "3"
  InPortWidth1 = "1"
  InPortWidth2 = "1"
  InPortWidth3 = "1"
/>
...
<Connection
  A.In1 = "1"
  A.In2 = "2"
  A.In3 = "3"
/>

Input Ports

Name	Width	Description
In1 .. In<NumInput>	<InPortWidth1> .. <InPortWidth<NumInput>>	The input port. Numbering starts at 1 (the parameters InPortWidth1 .. too).

Output Ports

Name	Width	Description
Out	sum of <InPortWidth1> .. <InPortWidth<NumInput>>	The input signals multiplexed into a single signal

Configuration parameters

Name	Width	Description
NumInput	-	The number of input signals. Required.
InPortWidth1 .. InPortWidth<NumInput>	-	The number of elements in each individual input signal

Initial conditions

There are no initial conditions for this function.

Full example file

<Contents>
  <OBJECTS>
    <Lib
        LibName="base" 
        SimObject="Signal/Mux"  
        Name="A" 
        NumInput="3"
        InPortWidth1="1"
        InPortWidth2="1"
        InPortWidth3="1"
    />
    <Lib
        LibName="base" 
        SimObject="Src/Sine"  
        Name="S1" 
        Amplitude="1"
        Bias="0"
        StartTime="0"
        PeriodS="4"
        PhaseDeg="0"
    />
    <Lib
        LibName="base" 
        SimObject="Src/Sine"  
        Name="S2" 
        Amplitude="2"
        Bias="0"
        StartTime="0"
        PeriodS="4"
        PhaseDeg="0"
    />
    <Lib
        LibName="base" 
        SimObject="Src/Sine"  
        Name="S3" 
        Amplitude="3"
        Bias="0"
        StartTime="0"
        PeriodS="4"
        PhaseDeg="0"
    />
 
  </OBJECTS>
  
  <INTERCONNECTIONS>
    <Connection
    A.In1="S1.Out"
    A.In2="S2.Out"
    A.In3="S3.Out"
    />
  </INTERCONNECTIONS>
 
  <INITIALIZATION>
    <InitialCondition
    />
  </INITIALIZATION>
 
  <SIMULATION>
    <Timing TStart="0" TEnd="6.0"/>
    <Integrator Method="RK45_i" NumCores="1" LogStates="1" UseRSSNorm="0">
      <StepControl StepMax="0.002" StepMin="0.00000001" AbsTol="1e-3" RelTol="1e-3"/>
    </Integrator>
    
  </SIMULATION>
 
<OBSERVERS>
    <FileOutput TOutput="0, 0,1,2,3,4, 5, 30" Select="objects:all"/>
  </OBSERVERS>
</Contents>

This SimObject is referred to as Signal/Mux