;*************************************************************************************
;*********************** SECTION 1: FFT LIBRARY ***********************************
;*************************************************************************************
Thank you for trying C28x Software Collateral.
FFT Library is installed in C:\TIDCS\C28\DSP_TBOX\FFT directory.
Fast Fourier Transforms are an efficient class of algorithms for the digital computation
of the N-point Fourier transform (DFT). In general, their input sequence are assumed to
be complex. In many real applications, the data sequences to be processed are real valued.
Even though the data is real, complex-valued DFT algorithm can still be used. One simple
approach creates a complex sequence from the real sequence; that is, real data for the real
components and zeros for the imaginary components, The complex FFT can then be =applied directly.
However, this method is not efficient as it consumes 2N memory locations (Real & Imaginary)
for N point sequence. When input is purely real, their symmetric properties compute DFT very
efficiently. One such optimized real FFT algorithm for 2N-point real data sequence is packing
algorithm. The original 2N-point sequence is packed as N-point complex sequence and N -point
complex FFT is performed on the complex sequence. Finally the resulting N -point complex output
is unpacked into another N+1 point complex sequence, which corresponds to spectral bin 0 to N
of 2N-point real input sequence. Spectral bin 0 to N is sufficient, as the remaining bins N+1
to 2N-1 are complex conjugates of spectral bins N-1 to 1.
The real FFT requires 2N+2 memory locations to compute the FFT for 2N-point real valued sequence,
which is highly preferable in contrast to the complex FFT that consumes 4N-locations for 2N-point
real valued sequence. Moreover using this strategy, the complex FFT size can be reduced by half,
at the FFT cost function of O(N) operations to pack the input and unpack the output. Hence,
the real FFT algorithm computes the FFT of a real input sequence almost twice as fast as the
general FFT algorithm.
This FFT library contains generic FFT module (32-bit implementation) for real/complex FFT.
FFT LIBRARY
|===============|======================================================================|
| Module Name | Description |
|===============|======================================================================|
| CFFT32 | 32-bit complex FFT module |
|---------------|----------------------------------------------------------------------|
| RFFT32 | 32-bit Real FFT module |
|======================================================================================|
DOCUMENTATION:
|===============|======================================================================|
| DOC | DIRECTORY LOCATION |
|===============|======================================================================|
| MODULE DOC | C:\TIDCS\C28\DSP_TBOX\FFT\DOC\FFT_MDL.PDF |
|======================================================================================|
Version History:
================
version 0.9b dated 8/17/2004
1. Updated the FFT module documentation and used FFT size "N" instead of "2N"
in real FFT documentation
2. In Real FFT modules, FFT size constant "TWO_N" is replaced with "N"
Version 0.9a dated 12/06/2003
1. Some the math function had .ref being used in the *.asm, it is changed to .def
Because of this bug, compiler was reporting that the function name is not available.
2. Most of the functions did not clear the OVM flag at the end, it is modified.
3. ASP & NASP is been used within functions, we should not disturb the ASP bit.
It is meant for only interrupt handler. Called function should not change this bit.
4. RFFT_acq function routine required on more call to clear the "acqflag" after the "count"
reaches "0" and all the data is stored in the "ipcb" buffer. Fixed this bug such that "acqflag"
is cleared when the last data is aquired.
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DSP28335开发板核心板原理图、手册、代码与教程
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DSP28335开发板核心板原理图、手册、代码与教程 (120个子文件)
首次运行必看视频.avi 68.89MB
Thumbs.db 13KB
基于DSP的FIR滤波器设计.doc 8.07MB
快速傅里叶变换FFT算法及其应用_[当文网提供].doc 1.58MB
基于DSP的FIR滤波器的设计和实现.doc 1.51MB
经典基于DSP的FIR滤波器的设计和实现.doc 1.11MB
IIR滤波器的MATLAB设计及DSP实现.doc 934KB
自适应滤波器的设计与实现.doc 911KB
DSP课程设计报告(256点FFT的实现)(1).doc 751KB
DSP课程设计报告(256点FFT的实现).doc 751KB
dsp_实现FFT报告.doc 592KB
基于DSP的最小均方误差自适应滤波器的实现.doc 479KB
DSP课程设计-自适应滤波器.doc 472KB
dsp基于matlab的fft算法实现.doc 470KB
基于DSP的FIR_滤波器.doc 467KB
DSP课程设计_基于MATLAB的FFT算法实现_09通信本2班.doc 434KB
DSP课程设计-8点基于DIF的FFT的实现.doc 391KB
IIR滤波器的DSP及Matlab实现.doc 332KB
DSP中的FIR滤波器论文.doc 330KB
ccs实现dsp课设iir滤波器.doc 301KB
ccs实现dsp课设iir滤波器(1).doc 301KB
DSP课程设计FFT的DSP实现.doc 254KB
dsp课设——FIR数字滤波器的设计.doc 247KB
基于DSP的IIR滤波器系统设计.doc 233KB
基于DSP的IIR滤波器系统设计(1).doc 233KB
DSP作业报告(IIR__FIR__FFT).docx 1.83MB
IIR滤波器的DSP实现(1).docx 1.37MB
IIR滤波器的DSP实现(3).docx 1.37MB
IIR滤波器的DSP实现(2).docx 1.37MB
IIR滤波器的DSP实现.docx 1.37MB
DSP课程设计——FFT的DSP实现(1).docx 591KB
DSP课程设计——FFT的DSP实现(2).docx 591KB
DSP课程设计——FFT的DSP实现.docx 591KB
FFT.exe 1.21MB
TMS320F28335.jpg 17KB
SXD28335B固件开发包使用说明书.pdf 86.11MB
TMS320C28x Assembly Language Tools v6.1 User's Guide.pdf 3.04MB
tms320f28335.pdf 2.79MB
sprs439m.pdf 2.62MB
TMS320C28x DSP CPU and Instruction Set Reference Guide .pdf 2.14MB
TMS320C28x DSP BIOS 5.x Application Programming Interface (API) Reference Guide .pdf 2.03MB
spraaw0.pdf 1.91MB
spraad5.pdf 1.62MB
TMS320F28xx 和 TMS320F28xxx DSC 的硬件设计指南 (Rev. A).pdf 1.61MB
通过 TM320F28xx 28xxx DSC 设计模拟接口的概述 (Rev. A).pdf 1.42MB
spraao7.pdf 1.28MB
TMS320C28x Optimizing CC++ Compiler v6.1 User's Guide .pdf 964KB
Interfacing the TMS320F2833x to the AIC23B Stereo Audio Codec .pdf 911KB
PowerPAD™ Thermally Enhanced Package.pdf 906KB
TMS320C28x Floating Point Unit and Instruction Set Reference Guide.pdf 895KB
spru714.pdf 840KB
多个 ePWM 跳闸区域事件的配置源.pdf 830KB
TMS320x2833x, 2823x Enhanced Pulse Width Modulator (ePWM) Reference Guide .pdf 767KB
spru963a.pdf 668KB
AT24C_www.ic37.com_2274118.pdf 638KB
TMS320F28335_CMD命令.pdf 577KB
TMS320x2833x, 2823x 增强型局控制器域网(eCAN) .pdf 551KB
Programming TMS320x28xx and 28xxx Peripherals in C_C++ .pdf 546KB
TMS320x2833x, 2823x System Control and Interrupts Reference Guide.pdf 546KB
针对 TMS320F28xxx DSC 的闪存编程解决方案 .pdf 545KB
spraa91.pdf 512KB
Running an Application from Internal Flash Memory on the TMS320F28xxx DSP .pdf 410KB
sprab69.pdf 408KB
spra820.pdf 407KB
spraa88a.pdf 382KB
TMS320x2833x, 2823x Enhanced Quadrature Encoder Pulse Module Reference Guide.pdf 363KB
TMS320x2833x, 2823x Inter-Integrated Circuit (I2C) Module Reference Guide .pdf 363KB
TMS320C28x™ 数字信号控制器入门.pdf 359KB
spraau8.pdf 343KB
TMS320x2833x, 2823x DSC Serial Peripheral Interface (SPI) Reference Guide.pdf 337KB
TMS320F2833x, 2823x Serial Communications Interface (SCI) Reference Guide .pdf 321KB
TMS320x2833x Enhanced Capture(ECAP).PDF 315KB
TMS320x2833x, 2823x High Resolution Pulse Width Modulator (HRPWM) RG.pdf 298KB
TMS320x2833x, 2823x External Interface (XINTF) Reference Guide .pdf 289KB
基于DSP的自适应滤波器的实现.pdf 282KB
Hardware Design Guidelines for TMS320F28xx and TMS320F28xxx DSCs .pdf 267KB
TMS320x2833x, 2823x Analog-to-Digital Converter (ADC) Module Reference Guide .pdf 250KB
TMS320x2833x, 2823x Direct Memory Access (DMA) Reference Guide.pdf 241KB
TMS320x281x to TMS320x2833x or 2823x Migration Overview .pdf 229KB
TMS320C28x FPU Primer.pdf 228KB
spraad8a.pdf 219KB
勘误.pdf 191KB
sprz272g.pdf 191KB
A Numerical Protection Relay Solution.pdf 188KB
An Easy Way of Creating a C-callable Assembly Function for the TMS320C28x DSP .pdf 185KB
Using the eQEP Module in TMS320x280x as a Dedicated Capture .pdf 180KB
TMS320x28xx, 28xxx DSP Peripherals Reference Guide .pdf 136KB
使用TMS320C2000 DMC 来建立控制系统 (Rev. A) .pdf 130KB
TPS75005 Quick-Start Guide with C2000™ Controllers .pdf 130KB
Common Object File Format (COFF) .pdf 125KB
TMS320x281x to TMS320x280x 2801x 2804x Migration Overview .pdf 125KB
Using Enhanced Pulse Width Modulator (ePWM) Module for 0-100% Duty Cycle Control.pdf 124KB
TMS320x2833x 2823x to TMS320x2834x Delfino Migration Overview.pdf 113KB
sxd28335b_v1原理图.pdf 106KB
TMS320x280x to TMS320x2833x or 2823x Migration Overview .pdf 99KB
TMS320C28x Instruction Set Simulator Technical Overview.pdf 66KB
spraaq3.pdf 63KB
19fft_v102.ppt 436KB
通用DSP实现IIR滤波器.ppt 93KB
TMS320x2833x, 2823x Boot ROM Reference Guide.rar 1.68MB
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