Chapter 1 Getting Started

Practical Audio Experiments using the TMS320C5505 USB Stick

“Getting Started” Texas Instruments University Programme Teaching Materials

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Getting Started

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Objectives • To build your first project using the TMS320C5505 USB Stick. • Playback music using the TMS320C5505 USB stick.

• Modify the code.

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Important • Follow the steps carefully! • If the wrong memory models are used, the project will not build.

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Compatibility • All of the applications provided on this teaching CD will also run on the TMS320C5505 and TMS320C5515 USB Stick without modification. • To run the applications on the older TMS320VC5505 USB stick, it is necessary to make a change to the file csl_general.h

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TMS320C5505 USB Stick Setup USB Stick

USB to PC CD Player Headphones

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TMS320C5515 USB Stick Setup USB to PC

Microphone Headphones

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Compatible Microphone • A 600 Ohm dynamic microphone is recommended. A low-cost karaoke microphone can be used.

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Microphone Adaptor • The USB stick uses a 3.5mm stereo jack • For a 6.35mm jack (microphone or guitar), an adaptor is required.

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Workspace • Code Composer Studio creates a “workspace”, that is a folder where projects are stored

• The default directory is: Desktop -> My Documents -> Workspace.

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Create New Folder in Workspace • Using Windows Explorer, create a new folder

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Naming the New Project • Name this folder MyFirstProject

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Copy the Files • Copy the project files to MyFirstProject folder

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Start Code Composer Studio • Start Code Composer Studio

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Creating a New Project • Select File -> New ->CCS Project

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Naming the New Project • For Project Name use MyFirstProject. Click Next >

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Project Types Available • Default is ARM. Select Project Type C5500 from list.

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Project Type Selected • Click on Next >

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Additional Project Settings • No references to other projects. Click Next >

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Select TMS320C5505 • From the pull-down menu, select TMS320C5505 • Note: This and others windows may look slightly different, depending on the release version of CCS 4.

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Select Runtime Support Library • The Runtime Support Library required is rts55h.lib, which is automatically selected.

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Select Linker Command File • Do not put anything in Linker Command File. • Click on Finish.

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Active Project • The the C/C++ Projects window, MyFirstProject is the Active Project for Debug.

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Show Files in MyFirstProject • Click on + to expand the list of files.

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View main.c • Double left click on main.c to open the main.c file.

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Select Project Properties • Select Project -> Properties

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Properties for MyFirstProject

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C/C++ Build – Basic Settings • Double Click on C/C++ Build

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Basic Options • Click on Basic Options.

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Setup Silicon Version • Type 5505 in for (--silicon_version, -v)

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Runtime Model Options • Double click on Runtime Model Options

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Setting the Pointer Size • Set (--ptrdiff_size) to 32 (default).

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Selecting the Memory Model • It is important to use the “huge” memory model.

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Runtime Model Options Selected • Click on OK.

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Processor Specific Settings • Two different processors have been used on the C5505 USB Stick: – TMS320C5505 (newer boards) – TMS320VC5505 (older boards), as shown in picture below:

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Modifications for TMS320VC5505 • The following change is required for boards with the TMS320VC5505 only.

• Go to the C/C++ Projects window then open the file csl_general.h:

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Building the Project • Select: Project -> Build Active Project.

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Build Complete • Console windows shows build is complete • Problems window should contain no errors or warnings.

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Confirming Memory Model • Scroll up the Console Window to check that memory_model=huge.

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Problems with the Build? • If you are having specific problems with the build, it is most likely that you have missed out a step in the process • It is important to have: – Silicon version 5505 – huge memory model – rts55h.lib

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Debugging the Project

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Launch TI Debugger • Select Target -> Launch TI Debugger

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First Debug Session Only • The first time you debug, you will be asked to Open Target Configuration. Click Yes.

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Naming Target Configuration • You may wish to change the Target Configuration Name.

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Setup XDS100 USB Emulator • Select Texas Instruments XDS100v2 USB Emulator.

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Configure C5505 USB Stick • Select USBSTK5505. Click on Save.

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XDS100 Now Connected • The XDS100 USB Emulator is now connected.

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XDS100 Emulator Configured • The Console window shows that the Phase Lock Loop has been set up for 100MHz operation

• The XDS100 USB Emulator has been successfully set up.

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Start Debug of MyFirstProject • Select Target -> Debug Active Project.

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Debugging MyFirstProject • XDS100 USB Emulator is debugging MyFirstProject.

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Go to main() • Arrow shows that the program is ready to run from the beginning of main().

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Run Program • Select Target -> Run.

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Program Running • The following text is shown in the Console Window:

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Halt Program Execution • To stop the program, select Target -> Halt.

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Modifying C Code

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Before Modification • main.c before modification

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After Modification • main.c after modification. Change gain of channels.

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Rebuild Active Project

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Viewing Files in Debug

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Viewing Source Files • Highlight any file and click on it to edit.

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Summary

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Summary • You have now learnt how to set up the TMS320C5505 USB Stick

• All of the other applications are self-contained, so if you have a specific interest, you can go straight to that application • It is recommended that the chapters be followed in sequence because some of the later chapters use concepts explained earlier.

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