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| 型号： | IPR-FFT |
| 厂商： | Altera |
| 文件页数： | 37/70页 |
| 文件大小： | 0K |
| 描述： | IP FFT/IFFT RENEW |
| 标准包装： | 1 |
| 系列： | * |
| 类型： | MegaCore |
| 功能： | 快速傅里叶变换处理器 |
| 许可证： | 续用许可证 |
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Chapter 2: Getting Started
Simulate the Design
■
2–13
Simulate in the MATLAB Software
This section discusses fixed-transform and variable streaming architecture
simulations.
Fixed Transform Architectures
The FFT MegaCore function outputs a bit-accurate MATLAB model < variation
name > _model.m , which you can use to model the behavior of your custom FFT
variation in the MATLAB software. The model takes a complex vector as input and it
outputs the transform-domain complex vector and corresponding block exponent
values. The length and direction of the transform (FFT/IFFT) are also passed as inputs
to the model.
If the input vector length is an integral multiple of N , the transform length, the length
of the output vector(s) is equal to the length of the input vector. However, if the input
vector is not an integral multiple of N , it is zero-padded to extend the length to be so.
The wizard also creates the MATLAB testbench file < variation name > _tb.m . This file
creates the stimuli for the MATLAB model by reading the input complex random data
from IP Toolbench-generated.
If you selected Floating point data representation, the input data is generated in
hexadecimal format.
To model your fixed-transform architecture FFT MegaCore function variation in the
MATLAB software, follow these steps:
1. Run the MATLAB software.
2. In the MATLAB command window, change to the working directory for your
project.
3. Perform the simulation:
a. Type help < variation name >_model at the command prompt to view the
input and output vectors that are required to run the MATLAB model as a
standalone M-function. Create your input vector and make a function call to
< variation name > _model . For example:
N=2048;
INVERSE = 0; % 0 => FFT 1=> IFFT
x = (2^12)*rand(1,N) + j*(2^12)*rand(1,N);
[y,e] = <variation name>_model(x,N,INVERSE);
or
b. Run the provided testbench by typing the name of the testbench, < variation
name > _tb at the command prompt.
f For more information about MATLAB and Simulink, refer to the MathWorks web site
November 2013
Altera Corporation
FFT MegaCore Function
User Guide
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IPR-FIR | 功能描述:开发软件 FIR Compiler MegaCore RENEWAL RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors |
| IPR-FIRII | 功能描述:开发软件 FIR Compiler II MegaCore RENEWAL RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors |
| IPRI2CCMFP001 | 制造商:System Level Solutions (SLS) 功能描述:IP CORE, FPGA, I2C CNTLR, FOR CYCLONE, STRATIX, Software Application:IP CORE, In |
| IPR-ILKN/100G | 功能描述:开发软件 Interlaken - 100G MegaCore RENEWAL RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors |
| IPR-ILKN/50G | 功能描述:开发软件 Interlaken - 50G MegaCore RENEWAL RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors |
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