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DFD FXP Simulation with State VI

Digital Filter Design VIs and Functions

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DFD FXP Simulation with State VI

Owning Palette: Fixed-Point Tools VIs

Installed With: Digital Filter Design Toolkit

Simulates the filtering process with initial internal states and generates the filtering statistics report for a fixed-point filter. Wire data to the signal in input to determine the polymorphic instance to use or manually select the instance.

You can use the DFD FXP Simulation Report VI to generate a text report about the performance of quantizers during a simulation.

Use the pull-down menu to select an instance of this VI.

Select an instance DFD FXP Simulation with State (DBL In)DFD FXP Simulation with State (I32 In)DFD FXP Simulation with State (I16 In)

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Find on the Functions palette

DFD FXP Simulation with State (DBL In)

	input range specifies the maximum absolute value of the input signal that the fixed-point integer can represent. For example, the input ranges both are 10 for DAQ devices with ranges of [0, 10V] and [–10, 10V]. The default is 1.
	signal in is the input signal you want to process. You can wire an impulse pattern, step pattern, uniform white noise, or a user-defined signal to this input. The input word length value you set on the DVD FXP Modeling VI determines the range of signal in. The range equals [–2^(input word length–1), 2^(input word length–1)–1]. For example, if you specify 16 as the input word length value, the corresponding range is [–32768, 32767].
	filter in specifies the input filter.
	filtering statistics in specifies the statistical information of quantizers in the filter in input before the simulation. quantizer source specifies the source for the quantizer. 0 Coefficients a/k (default) 1 Input 2 Output 3 Multiplicand 4 Product 5 Sum 6 Delay 7 Coefficients b/v statistical information contains the statistical information for quantizer source. max value contains the maximum value that appeared in quantizer source during simulation. min value contains the minimum value that appeared in quantizer source during simulation. #overflows contains the number of overflows that occurred in quantizer source during simulation. #underflows contains the number of underflows that occurred in quantizer source during simulation. #operations contains the number of operations that occurred in quantizer source during simulation.
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	state in specifies the initial internal states before processing.
	DBL signal out returns the filtered floating-point signal.
	integer signal out returns the output fixed-point integer signal, which is the same as the output signal from a fixed-point target.
	filtering statistics report returns the statistical information of quantizers in the filter in input after the simulation occurs. Use the DFD FXP Simulation Report VI to generate a text report from the filtering statistics report output. quantizer source returns the quantizer source. statistical information contains the statistical information for quantizer source. max value contains the maximum value that appeared in quantizer source during simulation. min value contains the minimum value that appeared in quantizer source during simulation. #overflows contains the number of overflows that occurred in quantizer source during simulation. #underflows contains the number of underflows that occurred in quantizer source during simulation. #operations contains the number of operations that occurred in quantizer source during simulation.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
	state out returns the internal states after processing. You can wire this output to the state in input of the next call to this VI if you want to process data continuously.

DFD FXP Simulation with State (I32 In)

	input range specifies the maximum absolute value of the input signal that the fixed-point integer can represent. For example, the input ranges both are 10 for DAQ devices with ranges of [0, 10V] and [–10, 10V]. The default is 1.
	signal in specifies the input signal that you want to process.
	filter in specifies the input filter.
	filtering statistics in specifies the statistical information of quantizers in the filter in input before the simulation. quantizer source specifies the source for the quantizer. 0 Coefficients a/k (default) 1 Input 2 Output 3 Multiplicand 4 Product 5 Sum 6 Delay 7 Coefficients b/v statistical information contains the statistical information for quantizer source. max value contains the maximum value that appeared in quantizer source during simulation. min value contains the minimum value that appeared in quantizer source during simulation. #overflows contains the number of overflows that occurred in quantizer source during simulation. #underflows contains the number of underflows that occurred in quantizer source during simulation. #operations contains the number of operations that occurred in quantizer source during simulation.
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	state in specifies the initial internal states before processing.
	DBL signal out returns the filtered floating-point signal.
	integer signal out returns the output fixed-point integer signal, which is the same as the output signal from a fixed-point target.
	filtering statistics report returns the statistical information of quantizers in the filter in input after the simulation occurs. Use the DFD FXP Simulation Report VI to generate a text report from the filtering statistics report output. quantizer source returns the quantizer source. statistical information contains the statistical information for quantizer source. max value contains the maximum value that appeared in quantizer source during simulation. min value contains the minimum value that appeared in quantizer source during simulation. #overflows contains the number of overflows that occurred in quantizer source during simulation. #underflows contains the number of underflows that occurred in quantizer source during simulation. #operations contains the number of operations that occurred in quantizer source during simulation.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
	state out returns the internal states after processing. You can wire this output to the state in input of the next call to this VI if you want to process data continuously.

DFD FXP Simulation with State (I16 In)

	input range specifies the maximum absolute value of the input signal that the fixed-point integer can represent. For example, the input ranges both are 10 for DAQ devices with ranges of [0, 10V] and [–10, 10V]. The default is 1.
	signal in specifies the input signal that you want to process.
	filter in specifies the input filter.
	filtering statistics in specifies the statistical information of quantizers in the filter in input before the simulation. quantizer source specifies the source for the quantizer. 0 Coefficients a/k (default) 1 Input 2 Output 3 Multiplicand 4 Product 5 Sum 6 Delay 7 Coefficients b/v statistical information contains the statistical information for quantizer source. max value contains the maximum value that appeared in quantizer source during simulation. min value contains the minimum value that appeared in quantizer source during simulation. #overflows contains the number of overflows that occurred in quantizer source during simulation. #underflows contains the number of underflows that occurred in quantizer source during simulation. #operations contains the number of operations that occurred in quantizer source during simulation.
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	state in specifies the initial internal states before processing.
	DBL signal out returns the filtered floating-point signal.
	integer signal out returns the output fixed-point integer signal, which is the same as the output signal from a fixed-point target.
	filtering statistics report returns the statistical information of quantizers in the filter in input after the simulation occurs. Use the DFD FXP Simulation Report VI to generate a text report from the filtering statistics report output. quantizer source returns the quantizer source. statistical information contains the statistical information for quantizer source. max value contains the maximum value that appeared in quantizer source during simulation. min value contains the minimum value that appeared in quantizer source during simulation. #overflows contains the number of overflows that occurred in quantizer source during simulation. #underflows contains the number of underflows that occurred in quantizer source during simulation. #operations contains the number of operations that occurred in quantizer source during simulation.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
	state out returns the internal states after processing. You can wire this output to the state in input of the next call to this VI if you want to process data continuously.

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