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Texas Instruments C28 Series User Manual
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yright
©
2012
T
e
xas
Instruments
Incor
porated.
FPU-DSP-LIB-UG-V131
USER’S
GUIDE
C28x
Floating
P
oint
Unit
DSP
Librar
y
2
Table of Contents
Copyright
2
Revision Information
2
Table of Contents
3
1 Introduction
5
2 Library Structure
6
Build Options Used to Build the Library
7
Header Files
7
A Note about C Functions and Iqmath
8
Complex Fast Fourier Transform
12
Complex Fast Fourier Transform (Unaligned)
15
Complex Fast Fourier Transform Magnitude
17
Complex Fast Fourier Transform Magnitude (Scaled)
19
Complex Fast Fourier Transform Phase
21
Complex Fast Fourier Transform Twiddle Factors
23
Inverse Complex Fast Fourier Transform
25
Real Fast Fourier Transform
28
Real Fast Fourier Transform (Unaligned)
31
Real Fast Fourier Transform with ADC Input
33
Real Fast Fourier Transform with ADC Input (Unaligned)
36
Real Fast Fourier Transform Magnitude
38
Real Fast Fourier Transform Magnitude (Scaled)
40
Real Fast Fourier Transform Phase
42
Real Fast Fourier Transform Twiddle Factors
44
Finite Impulse Response Filter
46
Absolute Value of a Complex Vector
50
Absolute Value of an Even Length Complex Vector
51
Addition (Element-Wise) of a Complex Scalar to a Complex Vector
52
Addition of Two Complex Vectors
53
Inverse Absolute Value of a Complex Vector
54
Inverse Absolute Value of an Even Length Complex Vector
55
Index of Maximum Value of an Even Length Real Array
56
Mean of Real and Imaginary Parts of a Complex Vector
57
Median of a Real Valued Array of Floats (Preserved Inputs)
58
Median of a Real Array of Floats
60
Complex Multiply of Two Floating Point Numbers
61
Complex Multiply of Two Complex Vectors
62
Multiplication of a Complex Vector and the Complex Conjugate of Another Vector
63
Multiplication of a Real Scalar and a Real Vector
64
Multiplication of a Real Scalar, a Real Vector, and Another Real Vector
65
Multiplication of a Real Vector and a Complex Vector
66
Multiplication of a Real Vector and a Real Vector
67
Sort an Array of Floats
68
Rounding (Unbiased) of a Floating Point Scalar
69
Subtraction of a Complex Scalar from a Complex Vector
70
Subtraction of a Complex Vector and Another Complex Vector
71
Fast Square Root
72
Optimized Memory Copy
73
Optimized Memory Set
74
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Texas Instruments C28 Series Specifications
General
Brand
Texas Instruments
Model
C28 Series
Category
Computer Hardware
Language
English
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