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Verify FIR Filter on ARM Cortex-A Processor

This example uses:

This example shows how to use the Code Replacement Library (CRL) for ARM processor with DSP blocks. The model uses the FIR filter block to filter two sine waves of different frequencies.

Task 1: Simulate

1.Open theFIR NE10 CRL tutorial example model.

2.Change your current folder in MATLAB® to a writable folder.

3.On the model tool strip, clickRunto start the simulation.

4.ClickStopto end simulation.

Task 2: Setup model for Code Replacement

1.UnderSimulation, clickModel Configuration Parametersto open the dialog box.

2.Select theCode Generationcategory.

3.Set theSystem target fileto ert.tlc,and selectGenerate code only.

4.SelectInterfaceunder theCode Generationcategory.

5.SetCode replacement libraryto ARM Cortex-A.

Task 3: Generate code

1.Right-click the FIR subsystem.From the drop-down menu that opens, choose C/C++ Code > BuildThis Subsystem. When theBuild code for Subsystemdialog box opens, clickBuildto start generating code.

2.Whenbuildfinishes processing, a code generation report comes up.

3.Click on the FIR.c file. Notice the NE10 library function; ne10_fir_init_float in the initialize function (FIR_initialize). Also, notice the NE10 function; ne10_fir_float_neon in the model step function (FIR_step).

任务4:使用处理器的循环(公益诉讼)

To perform the previous steps using PIL, you need to have the Embedded Coder Support Package for ARM Cortex-A Processors, and the DST Support Package for ARM Cortex-A Processors. The following examples show you how to use PIL with ARM Cortex-A:

  • Code Verification and Validation with PIL and External Mode example.

  • Code Optimization Using NE10 DSP Library example. (Requires BeagleBone Black Hardware Support Package)

Embedded Coder Support Package for ARM Cortex-A Processors Documentation

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