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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| within ; | ||
| model MDD_test | ||
|
|
||
| model Packager "Create a package which allows to add signals of various types" | ||
| import | ||
| Modelica_DeviceDrivers.Blocks.Packaging.SerialPackager.Internal.DummyFunctions; | ||
| import Modelica_DeviceDrivers.Packaging.SerialPackager; | ||
| import Modelica_DeviceDrivers.Packaging.alignAtByteBoundary; | ||
|
|
||
| parameter Boolean enableExternalTrigger = false | ||
| "true, enable external trigger input signal, otherwise use sample time settings below" | ||
| annotation (Dialog(tab="Advanced", group="Activation"), choices(checkBox=true)); | ||
| parameter Boolean useBackwardSampleTimePropagation = true | ||
| "true, use backward propagation for sample time, otherwise switch to forward propagation" | ||
| annotation(Dialog(enable = not enableExternalTrigger, tab="Advanced", group="Activation"), choices(checkBox=true)); | ||
| parameter Modelica.SIunits.Period sampleTime=0.01 | ||
| "Sample time if forward propagation of sample time is used" | ||
| annotation (Dialog(enable = (not useBackwardSampleTimePropagation) and (not enableExternalTrigger), tab="Advanced", group="Activation")); | ||
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| constant Boolean useBackwardPropagatedBufferSize = false | ||
| "true, use backward propagated (automatic) buffer size for package, otherwise use manually specified buffer size below" | ||
| annotation(Dialog(tab="Advanced", group="Buffer size settings"), choices(checkBox=true)); | ||
| parameter Integer userBufferSize = 16*1024 | ||
| "Buffer size for package if backward propagation of buffer size is deactivated" | ||
| annotation (Dialog(enable = not useBackwardPropagatedBufferSize, tab="Advanced", group="Buffer size settings")); | ||
| Modelica_DeviceDrivers.Blocks.Interfaces.PackageOut pkgOut(pkg = SerialPackager(if useBackwardPropagatedBufferSize then bufferSize else userBufferSize), dummy(start=0, fixed=true)) | ||
| annotation (Placement(transformation(extent={{-20,-128},{20,-88}}))); | ||
| Modelica.Blocks.Interfaces.BooleanInput trigger if enableExternalTrigger | ||
| annotation (Placement(transformation(extent={{-140,-20},{-100,20}}))); | ||
| protected | ||
| Modelica.Blocks.Interfaces.BooleanInput internalTrigger; | ||
| Modelica.Blocks.Interfaces.BooleanInput conditionalInternalTrigger if not enableExternalTrigger; | ||
| Modelica.Blocks.Interfaces.BooleanInput actTrigger | ||
| annotation (HideResult=true); | ||
| Integer backwardPropagatedBufferSize; | ||
| Integer bufferSize; | ||
| equation | ||
| /* Condional connect equations to either use external trigger or internal trigger */ | ||
| internalTrigger = if useBackwardSampleTimePropagation then pkgOut.backwardTrigger else sample(0,sampleTime); | ||
| connect(internalTrigger, conditionalInternalTrigger); | ||
| connect(conditionalInternalTrigger, actTrigger); | ||
| connect(trigger, actTrigger); | ||
|
|
||
| when initial() then | ||
| /* If userPkgBitSize is set, use it. Otherwise use auto package size. */ | ||
| backwardPropagatedBufferSize = if pkgOut.userPkgBitSize > 0 then | ||
| alignAtByteBoundary(pkgOut.userPkgBitSize) else | ||
| alignAtByteBoundary(pkgOut.autoPkgBitSize); | ||
| bufferSize = if useBackwardPropagatedBufferSize then backwardPropagatedBufferSize | ||
| else userBufferSize; | ||
| end when; | ||
|
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||
| pkgOut.trigger = actTrigger; | ||
| when pkgOut.trigger then | ||
| pkgOut.dummy = DummyFunctions.clear(pkgOut.pkg, time); | ||
| end when; | ||
|
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| annotation (Icon(coordinateSystem(preserveAspectRatio=true, extent={{-100, | ||
| -100},{100,100}}), graphics={Bitmap(extent={{-70,-70},{70,70}}, | ||
| fileName="Modelica://Modelica_DeviceDrivers/Resources/Images/Icons/package.png")}), Documentation(info="<html> | ||
| <p> | ||
| The <code>Packager</code> block creates a packager object to which payload can be added by subsequent blocks. | ||
| </p> | ||
| <h5>Advanced parameter settings</h5> | ||
| <p> | ||
| With the default parameter settings the buffer size (size of the serialized package), as well as the sample time of the block is determined automatically by | ||
| backward propagation. However, that values may also be set manually. An example there this functionality is used is the <a href=\"modelica://Modelica_DeviceDrivers.Blocks.Examples.TestSerialPackager\"><code>TestSerialPackager</code></a> model. In that model the parameter <code>sampleTime</code> is explicitly set, since backward propagation is not possible in that case. | ||
| </p> | ||
| <h4>Examples</h4> | ||
| <p> | ||
| The block is used in several examples, e.g. in, | ||
| <a href=\"modelica://Modelica_DeviceDrivers.Blocks.Examples.TestSerialPackager_UDP\"><code>TestSerialPackager_UDP</code></a>. | ||
| The figure below shows an arrangement in which a <code>Packager</code> object is created and after that a payload of three Real values | ||
| and one Integer value is added, serialized and finally sent using UDP. | ||
| </p> | ||
| <p><img src=\"modelica://Modelica_DeviceDrivers/Resources/Images/TestSerialPackager_UDP_model.png\"/></p> | ||
| </html>")); | ||
| end Packager; | ||
|
|
||
| Modelica_DeviceDrivers.Blocks.Packaging.SerialPackager.ResetPointer | ||
| resetPointer(nu=1) | ||
| annotation (Placement(transformation(extent={{-46,20},{-26,40}}))); | ||
| Modelica_DeviceDrivers.Blocks.Packaging.SerialPackager.PackUnsignedInteger | ||
| packInt(nu=1, width=32) | ||
| annotation (Placement(transformation(extent={{-122,38},{-102,58}}))); | ||
| Packager packager(useBackwardSampleTimePropagation=false, | ||
| sampleTime=0.1, | ||
| userBufferSize=32) | ||
| annotation (Placement(transformation(extent={{-122,78},{-102,98}}))); | ||
| Modelica.Blocks.Sources.IntegerExpression integerExpression(y=123) | ||
| annotation (Placement(transformation(extent={{-162,38},{-142,58}}))); | ||
| Modelica_DeviceDrivers.Blocks.Packaging.SerialPackager.GetInteger getInteger | ||
| annotation (Placement(transformation(extent={{-46,-10},{-26,10}}))); | ||
| equation | ||
|
|
||
| connect(packager.pkgOut, packInt.pkgIn) annotation (Line( | ||
| points={{-112,77.2},{-112,58.8}}, | ||
| color={0,0,0}, | ||
| smooth=Smooth.None)); | ||
| connect(packInt.pkgOut[1], resetPointer.pkgIn) annotation (Line( | ||
| points={{-112,37.2},{-112,-26},{-70,-26},{-70,46},{-36,46},{-36,40.8}}, | ||
| color={0,0,0}, | ||
| smooth=Smooth.None)); | ||
| connect(integerExpression.y, packInt.u) annotation (Line( | ||
| points={{-141,48},{-124,48}}, | ||
| color={255,127,0}, | ||
| smooth=Smooth.None)); | ||
| connect(resetPointer.pkgOut[1], getInteger.pkgIn) annotation (Line( | ||
| points={{-36,19.2},{-36,10.8}}, | ||
| color={0,0,0}, | ||
| smooth=Smooth.None)); | ||
| end MDD_test; |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,31 @@ | ||
| // name: MDD_test | ||
| // keywords: MDD_test | ||
| // status: correct | ||
| // teardown_command: rm -rf MDD_test_* | ||
| // | ||
| // Checks that external object aliases are recognized properly. Otherwise the system has too many equations. | ||
| // | ||
|
|
||
| loadModel(Modelica,{"3.2.2"});getErrorString(); | ||
| loadModel(Modelica_Synchronous); getErrorString(); | ||
| loadModel(Modelica_DeviceDrivers); getErrorString(); | ||
| loadFile("MDD_test.mo"); getErrorString(); | ||
| buildModel(MDD_test); getErrorString(); | ||
| // Result: | ||
| // true | ||
| // "" | ||
| // true | ||
| // "" | ||
| // true | ||
| // "" | ||
| // true | ||
| // "" | ||
| // {"MDD_test","MDD_test_init.xml"} | ||
| // "Warning: Alias equations of external objects are not Modelica compliant as in: | ||
| // getInteger.pkgIn.pkg = resetPointer.pkgOut[1].pkg | ||
| // packInt.pkgOut[1].pkg = resetPointer.pkgIn.pkg | ||
| // packInt.pkgIn.pkg = packager.pkgOut.pkg | ||
| // packInt.pkgOut[1].pkg = packInt.pkgIn.pkg | ||
| // resetPointer.pkgOut[1].pkg = resetPointer.pkgIn.pkg | ||
| // " | ||
| // endResult |
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