📄 dds_n256.mdl
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InitialOutput "[]"
}
Block {
BlockType Product
Inputs "2"
Multiplication "Element-wise(.*)"
InputSameDT on
OutDataTypeMode "Same as first input"
OutDataType "sfix(16)"
OutScaling "2^0"
LockScale off
RndMeth "Zero"
SaturateOnIntegerOverflow on
SampleTime "-1"
}
Block {
BlockType RelationalOperator
Operator ">="
InputSameDT on
LogicOutDataTypeMode "Logical (see Configuration Parameters: Optimiza"
"tion)"
LogicDataType "uint(8)"
ZeroCross on
SampleTime "-1"
}
Block {
BlockType Rounding
Operator "floor"
SampleTime "-1"
}
Block {
BlockType Scope
Floating off
ModelBased off
TickLabels "OneTimeTick"
ZoomMode "on"
Grid "on"
TimeRange "auto"
YMin "-5"
YMax "5"
SaveToWorkspace off
SaveName "ScopeData"
LimitDataPoints on
MaxDataPoints "5000"
Decimation "1"
SampleInput off
SampleTime "0"
}
Block {
BlockType "S-Function"
FunctionName "system"
SFunctionModules "''"
PortCounts "[]"
}
Block {
BlockType StateSpace
A "1"
B "1"
C "1"
D "1"
X0 "0"
AbsoluteTolerance "auto"
Realization "auto"
}
Block {
BlockType SubSystem
ShowPortLabels on
Permissions "ReadWrite"
PermitHierarchicalResolution "All"
SystemSampleTime "-1"
RTWFcnNameOpts "Auto"
RTWFileNameOpts "Auto"
SimViewingDevice off
DataTypeOverride "UseLocalSettings"
MinMaxOverflowLogging "UseLocalSettings"
}
Block {
BlockType Sum
IconShape "rectangular"
Inputs "++"
InputSameDT on
OutDataTypeMode "Same as first input"
OutDataType "sfix(16)"
OutScaling "2^0"
LockScale off
RndMeth "Floor"
SaturateOnIntegerOverflow on
SampleTime "-1"
}
Block {
BlockType ToWorkspace
VariableName "simulink_output"
MaxDataPoints "1000"
Decimation "1"
SampleTime "0"
FixptAsFi off
}
Block {
BlockType TriggerPort
TriggerType "rising"
StatesWhenEnabling "inherit"
ShowOutputPort off
OutputDataType "auto"
SampleTimeType "triggered"
SampleTime "1"
ZeroCross on
}
}
AnnotationDefaults {
HorizontalAlignment "center"
VerticalAlignment "middle"
ForegroundColor "black"
BackgroundColor "white"
DropShadow off
FontName "Helvetica"
FontSize 10
FontWeight "normal"
FontAngle "normal"
}
LineDefaults {
FontName "Helvetica"
FontSize 9
FontWeight "normal"
FontAngle "normal"
}
System {
Name "dds_n256"
Location [190, 351, 823, 637]
Open on
ModelBrowserVisibility off
ModelBrowserWidth 200
ScreenColor "white"
PaperOrientation "landscape"
PaperPositionMode "auto"
PaperType "A4"
PaperUnits "centimeters"
ZoomFactor "100"
ReportName "simulink-default.rpt"
Block {
BlockType Reference
Name "Analog\nFilter Design"
Ports [1, 1]
Position [240, 82, 305, 138]
SourceBlock "dsparch4/Analog\nFilter Design"
SourceType "Analog Filter Design"
method "Butterworth"
filttype "Lowpass"
N "4"
Wlo "15*RF*K/16777216"
Whi "RF*8/16"
Rp "2"
Rs "40"
}
Block {
BlockType SubSystem
Name "Calculate \nfrequency\n"
Ports [1, 1]
Position [350, 176, 390, 214]
TreatAsAtomicUnit off
MinAlgLoopOccurrences off
RTWSystemCode "Auto"
System {
Name "Calculate \nfrequency\n"
Location [517, 386, 867, 618]
Open off
ModelBrowserVisibility off
ModelBrowserWidth 200
ScreenColor "white"
PaperOrientation "landscape"
PaperPositionMode "auto"
PaperType "A4"
PaperUnits "centimeters"
ZoomFactor "100"
Block {
BlockType Inport
Name "In1"
Position [30, 28, 60, 42]
Port "1"
IconDisplay "Port number"
LatchInput off
}
Block {
BlockType Constant
Name "Constant1"
Position [25, 100, 55, 130]
Value "0"
}
Block {
BlockType SubSystem
Name "Frequency of\nsingle tone"
Ports [1, 1]
Position [165, 153, 270, 207]
ShowName off
TreatAsAtomicUnit off
MinAlgLoopOccurrences off
RTWSystemCode "Auto"
MaskDisplay "disp('Single Tone\\nFrequency Estimator');"
MaskIconFrame on
MaskIconOpaque on
MaskIconRotate "none"
MaskIconUnits "autoscale"
System {
Name "Frequency of\nsingle tone"
Location [181, 209, 446, 413]
Open off
ModelBrowserVisibility off
ModelBrowserWidth 200
ScreenColor "white"
PaperOrientation "landscape"
PaperPositionMode "auto"
PaperType "A4"
PaperUnits "centimeters"
ZoomFactor "100"
Block {
BlockType Inport
Name "In1"
Position [110, 25, 140, 40]
Orientation "down"
Port "1"
IconDisplay "Port number"
LatchInput off
}
Block {
BlockType SubSystem
Name "Calculate single tone \nfrequency"
Ports [1, 1, 0, 1]
Position [90, 73, 165, 127]
TreatAsAtomicUnit on
MinAlgLoopOccurrences off
RTWSystemCode "Auto"
System {
Name "Calculate single tone \nfrequency"
Location [99, 524, 780, 705]
Open off
ModelBrowserVisibility off
ModelBrowserWidth 200
ScreenColor "white"
PaperOrientation "landscape"
PaperPositionMode "auto"
PaperType "A4"
PaperUnits "centimeters"
ZoomFactor "100"
Block {
BlockType Inport
Name "Time"
Position [40, 63, 70, 77]
Port "1"
IconDisplay "Port number"
LatchInput off
Port {
PortNumber 1
Name "Time of current edge"
RTWStorageClass "Auto"
DataLoggingNameMode "SignalName"
ShowSigGenPortName on
}
}
Block {
BlockType TriggerPort
Name "Trigger"
Ports []
Position [75, 110, 95, 130]
ZeroCross off
}
Block {
BlockType Constant
Name "Constant"
Position [270, 110, 300, 140]
ShowName off
Value "0"
}
Block {
BlockType Memory
Name "Memory"
Position [125, 55, 155, 85]
InheritSampleTime on
Port {
PortNumber 1
Name "Time of previous edge"
RTWStorageClass "Auto"
DataLoggingNameMode "SignalName"
ShowSigGenPortName on
}
}
Block {
BlockType Product
Name "Product"
Ports [1, 1]
Position [375, 24, 405, 56]
ShowName off
Inputs "/"
RndMeth "Floor"
Port {
PortNumber 1
Name "Frequency"
RTWStorageClass "Auto"
DataLoggingNameMode "SignalName"
ShowSigGenPortName on
}
}
Block {
BlockType RelationalOperator
Name "Relational\nOperator"
Position [365, 102, 395, 133]
ShowName off
Operator "~="
Port {
PortNumber 1
Name "Gating signal"
RTWStorageClass "Auto"
DataLoggingNameMode "SignalName"
ShowSigGenPortName on
}
}
Block {
BlockType Product
Name "Set to Zero\nif previous time\nwas "
"zero"
Ports [2, 1]
Position [535, 32, 565, 63]
RndMeth "Floor"
}
Block {
BlockType Sum
Name "Sum"
Ports [2, 1]
Position [305, 30, 325, 50]
ShowName off
IconShape "round"
Inputs "|+-"
Port {
PortNumber 1
Name "Period"
RTWStorageClass "Auto"
DataLoggingNameMode "SignalName"
ShowSigGenPortName on
}
}
Block {
BlockType Outport
Name "Freq"
Position [615, 43, 645, 57]
IconDisplay "Port number"
BusOutputAsStruct off
InitialOutput "0"
}
Line {
Name "Gating signal"
Labels [2, 0]
SrcBlock "Relational\nOperator"
SrcPort 1
Points [55, 0; 0, -65]
DstBlock "Set to Zero\nif previous time\nwas "
"zero"
DstPort 2
}
Line {
SrcBlock "Constant"
SrcPort 1
DstBlock "Relational\nOperator"
DstPort 2
}
Line {
SrcBlock "Set to Zero\nif previous time\nwas "
"zero"
SrcPort 1
DstBlock "Freq"
DstPort 1
}
Line {
Name "Time of previous edge"
Labels [1, 1]
SrcBlock "Memory"
SrcPort 1
Points [155, 0]
Branch {
Points [0, 40]
DstBlock "Relational\nOperator"
DstPort 1
}
Branch {
DstBlock "Sum"
DstPort 2
}
}
Line {
Name "Frequency"
Labels [1, 0]
SrcBlock "Product"
SrcPort 1
DstBlock "Set to Zero\nif previous time\nwas "
"zero"
DstPort 1
}
Line {
Name "Period"
Labels [-1, 1]
SrcBlock "Sum"
SrcPort 1
DstBlock "Product"
DstPort 1
}
Line {
Name "Time of current edge"
SrcBlock "Time"
SrcPort 1
Points [35, 0]
Branch {
DstBlock "Memory"
DstPort 1
}
Branch {
Labels [2, 0]
Points [0, -30]
DstBlock "Sum"
DstPort 1
}
}
Annotation {
Name "Ensure frequency calculation\nonly "
"for full period"
Position [507, 151]
}
}
}
Block {
BlockType Clock
Name "Clock"
Position [25, 90, 45, 110]
Decimation "1"
}
Block {
BlockType Outport
Name "Out1"
Position [190, 93, 220, 107]
IconDisplay "Port number"
BusOutputAsStruct off
}
Line {
SrcBlock "Calculate single tone \nfrequency"
SrcPort 1
DstBlock "Out1"
DstPort 1
}
Line {
SrcBlock "Clock"
SrcPort 1
DstBlock "Calculate single tone \nfrequency"
DstPort 1
}
Line {
SrcBlock "In1"
SrcPort 1
DstBlock "Calculate single tone \nfrequency"
DstPort trigger
}
}
}
Block {
BlockType RelationalOperator
Name "Relational\nOperator"
Position [95, 27, 125, 58]
Operator ">"
LogicDataType "double"
ZeroCross off
}
Block {
BlockType Outport
Name "Out1"
Position [295, 173, 325, 187]
IconDisplay "Port number"
BusOutputAsStruct off
}
Line {
SrcBlock "Constant1"
SrcPort 1
Points [0, -65]
DstBlock "Relational\nOperator"
DstPort 2
}
Line {
SrcBlock "Relational\nOperator"
SrcPort 1
Points [20, 0]
DstBlock "Frequency of\nsingle tone"
DstPort 1
}
Line {
SrcBlock "In1"
SrcPort 1
DstBlock "Relational\nOperator"
DstPort 1
}
Line {
SrcBlock "Frequency of\nsingle tone"
SrcPort 1
DstBlock "Out1"
DstPort 1
}
}
}
Block {
BlockType Constant
Name "Control\nWord"
Position [20, 110, 50, 140]
Value "K"
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