National Instruments 320571-01 Part 4 NI-DSP Interface Utilities

Contents
© National Instruments Corporation vii NI-DSP SRM for LabVIEW for Windows
DSP ReFFT............................................................................................................................................... 2-66
DSP Reset................................................................................................................................................. 2-66
DSP Reverse............................................................................................................................................. 2-67
DSP Sawtooth Pattern............................................................................................................................... 2-68
DSP Set..................................................................................................................................................... 2-69
DSP Shift .................................................................................................................................................. 2-69
DSP Sinc Pattern....................................................................................................................................... 2-70
DSP Sine Pattern....................................................................................................................................... 2-71
DSP Square Pattern................................................................................................................................... 2-72
DSP Square Root...................................................................................................................................... 2-73
DSP Sort................................................................................................................................................... 2-74
DSP Start .................................................................................................................................................. 2-75
DSP Subset............................................................................................................................................... 2-75
DSP Subtract............................................................................................................................................. 2-76
DSP Sum................................................................................................................................................... 2-76
DSP TimeOut............................................................................................................................................ 2-77
DSP Triangle Pattern................................................................................................................................ 2-78
DSP Triangular Train................................................................................................................................ 2-80
DSP Triangular Window .......................................................................................................................... 2-81
DSP Uniform White Noise....................................................................................................................... 2-82
DSP Unwrap Phase................................................................................................................................... 2-83
DSP Zero Padder ...................................................................................................................................... 2-84
Part 4
NI-DSP Interface Utilities
Chapter 1
Introduction to the NI-DSP Interface Utilities.................................................................... 1-1
Overview of the NI-DSP Interface Utilities.............................................................................................. 1-1
Installing the NI-DSP Interface Utilities .................................................................................................. 1-2
Using the NI-DSP Interface Utilities........................................................................................................ 1-2
Chapter 2
Getting Started with the NI-DSP Interface Utilities ....................................................... 2-1
Creating Your Custom NI-DSP Library................................................................................................... 2-1
1. Create Your Source Code of C Functions............................................................................. 2-1
GMaxMin.c Example.................................................................................................. 2-1
Guidelines for the Custom Functions .......................................................................... 2-2
DSP Board Memory Management............................................................................... 2-3
2. Compile and/or Assemble Source Code................................................................................ 2-4
3. Add Your Object Filenames to a Linker File (ifile).............................................................. 2-4
4. Add Your New Function Names to a Library Function List File.......................................... 2-4
Customizing the DSP Library by Deleting Functions................................................. 2-5
5. Run the Build Dispatch Application to Generate an Assembly Dispatch File...................... 2-6
6. Compile, Assemble, and Link Your Custom Library............................................................ 2-7
Creating Your LabVIEW Interface .......................................................................................................... 2-8
1. Bundle All of the Input Parameters to Arrays....................................................................... 2-8
2. Call the Custom VI................................................................................................................ 2-10
3. Index the Output Arrays to Obtain the Results..................................................................... 2-10
Executing the Custom Function from LabVIEW..................................................................................... 2-12
Chapter 3
DSP Board Function Overview ...................................................................................................... 3-1
Data Acquisition Functions ...................................................................................................................... 3-3