SinkProperties
Overview
Copies the data at the input pin and stores it in an internal buffer.
Discussion
The sink module copies the floating point data at the input pin to an internal buffer, value. The copy operation occurs at each block process and thus the data continuously updates. This module is used to store the value of a wire and make it available to the control code, or to a host processor.
The module supports floating-point values and handles both real and complex data. The inspector window shows the data using a plot. In the inspector window, there are two edit boxes for maximum(Ymax) and minimum(Ymin) limits for plotting amplitude. If the user gives Ymax less than Ymin then the range [Ymax Ymin] will be automatically set by MATLAB.
Additionally, this module makes the wire information available as internal variables. Block size, channel number, sample rate and signal complexity can be accessed in MATLAB code, source code, or in a layout using the ParamGet module.
Type Definition
typedef struct _ModuleSinkProperties
{
ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure
INT32 BlockSize; // Block Size
INT32 NumChannels; // Number of Channels
FLOAT32 SampleRate; // Sample Rate
INT32 IsComplex; // Is Complex
INT32 enable; // To enable or disable the plotting.
FLOAT32* value; // Captured values.
FLOAT32* yRange; // Y-axis range.
} ModuleSinkPropertiesClass;
Variables
Properties
Name | Type | Usage | isHidden | Default value | Range | Units |
BlockSize | int | const | 0 | 32 | Unrestricted | |
NumChannels | int | const | 0 | 1 | Unrestricted | |
SampleRate | float | const | 0 | 48000 | Unrestricted | |
IsComplex | int | const | 0 | 0 | Unrestricted | |
enable | int | parameter | 1 | 0 | Unrestricted | |
value | float* | state | 0 | [32 x 1] | Unrestricted | |
yRange | float* | parameter | 0 | [1 x 2] | Unrestricted |
Pins
Input Pins
Name: in
Description: audio input
Data type: float
Channel range: Unrestricted
Block size range: Unrestricted
Sample rate range: Unrestricted
Complex support: Real and Complex
MATLAB Usage
File Name: sink_properties_module.m
M=sink_properties_module(NAME)
Creates a sink (capture) module for use with the Audio Weaver
environment. The module captures a block of input data and stores it into
an internal buffer.
Arguments:
NAME - name of the module.