Sum

Performs a simple summation of the input signals.

Collaboration diagram for Sum:

A general summation object. It is assumed that the width of all ports are equal. The number of input ports and the width of the ports are decided by input parameters at run-time.

Author

Karl-Johan Reite

Date

21.11.2006 KJR: Initial version.

Example configuration excerpt

<Lib
  LibName   = "fhsim_base"
  SimObject = "Math/Sum"
  Name      = "A"
  PortWidth = "2"
  NumInput  = "3"
/>
...
<Connection
  A.In1 = "10,4"
  A.In2 = "-10,42"
  A.In3 = "0,-46"
/>

Input Ports

Name	Width	Description
In1 .. In<NumInput>	<PortWidth>	The input port

Output Ports

Name	Width	Description
Out	<PortWidth>	The elementwise sum of the input signals

Configuration parameters

Name	Width	Description
PortWidth	1	The number of elements in the input and output ports
NumInput	1	The number of input signals

Initial conditions

There are no initial conditions for this function.

Full example file

<Contents>
  <OBJECTS>
    <Lib
        LibName="base" 
        SimObject="Math/Sum"  
        Name="A" 
        PortWidth="5"
        NumInput="2"
    />
    </OBJECTS>
  
  <INTERCONNECTIONS>
    <Connection
    A.In1="1,2,3,4,5"
    A.In2="5,4,3,2,1"
    />
  </INTERCONNECTIONS>
 
  <INITIALIZATION>
    <InitialCondition
    />
  </INITIALIZATION>
 
  <SIMULATION>
    <Timing TStart="0" TEnd="2.0"/>
    <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, 1, 30" Select="objects:all"/>
  </OBSERVERS>
</Contents>

This SimObject is referred to as Math/Sum