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TMS320C64X
Manual de usuario
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TMS320C64x+ DSP
1
Little-Endian DSP Library
1
Programmer’s Reference
1
Read This First
3
Trademarks
4
Contents
5
Introduction
9
1.2 Features and Benefits
12
Installing and Using DSPLIB
13
2.1 How to Install DSPLIB
14
2.2 Using DSPLIB
15
(log2(nx)−cei[log4(nx)−1])
16
(log2(nx))
16
2.3 How to Rebuild DSPLIB
17
DSPLIB Function Tables
19
3.2 DSPLIB Functions
21
3.3 DSPLIB Function Tables
22
Table 3−4. FFT (Continued)
23
Table 3−6. Math
24
Table 3−7. Matrix
24
Table 3−8. Miscellaneous
25
Table 3−9. Obsolete Functions
25
DSPLIB Reference
29
4.1 Adaptive Filtering
30
DSP_firlms2
31
4.2 Correlation
32
DSP_autocor
33
DSP_autocor_rA8
34
AutoCorrelation
34
DSP_fft16x16
36
DSP_fft16x16_imre
39
DSP_fft16x16r
42
DSP_fft16x32
52
DSP_fft32x32
54
DSP_fft32x32s
56
DSP_ifft16x16
58
DSP_ifft16x16_imre
60
DSP_ifft16x32
62
DSP_ifft32x32
64
4.4 Filtering and Convolution
66
DSP_fir_cplx
67
DSP_fir_cplx_hM4X4
68
Complex FIR Filter
68
DSP_fir_gen
70
FIR Filter
70
DSP_fir_gen_hM17_rA8X8
72
DSP_fir_r4
74
DSP_fir_r8
76
DSP_fir_r8_hM16_rM8A8X8
78
DSP_fir_sym
80
Symmetric FIR Filter
80
IIR With 5 Coefficients
82
DSP_iirlat
84
All-Pole IIR Lattice Filter
84
4.5 Math
86
DSP_dotp_sqr
87
DSP_dotprod
88
Vector Dot Product
88
DSP_maxval
90
Maximum Value of Vector
90
DSP_maxidx
91
DSP_minval
93
Minimum Value of Vector
93
DSP_mul32
94
32-Bit Vector Multiply
94
DSP_neg32
96
32-Bit Vector Negate
96
DSP_recip16
97
16-Bit Reciprocal
97
DSP_vecsumsq
99
Sum of Squares
99
DSP_w_vec
100
Weighted Vector Sum
100
4.6 Matrix
101
DSP_mat_mul
102
DSP_mat_trans
103
Matrix Transpose
103
4.7 Miscellaneous
104
DSP_bexp
105
DSP_blk_eswap16
106
DSP_blk_eswap32
108
DSP_blk_eswap64
110
DSP_blk_move
112
Block Move (Overlapping)
112
DSP_fltoq15
113
Float to Q15 Conversion
113
DSP_minerror
115
Minimum Energy Error Search
115
DSP_q15tofl
117
Q15 to Float Conversion
117
4.8 Obsolete Functions
118
DSP_bitrev_cplx
119
DSP_radix2
121
Complex Forward FFT (radix 2)
121
DSP_r4fft
123
Complex Forward FFT (radix 4)
123
DSP_fft16x16t
135
Appendix A
149
Performance Considerations
150
A.2 Fractional Q Formats
151
A.2.3 Q.31 Format
152
Appendix B
153
B.1 DSPLIB Software Updates
154
B.2 DSPLIB Customer Support
154
Glossary
155
C-3Glossary
157
C-5Glossary
159
C-7Glossary
161
C-9Glossary
163
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