MATLAB: Does the “Filter Example 2” in CCSHILDEMO in C54x only give the correct answer during the second run in the Link for Code Composer Studio 1.3.2 (R14SP1)

ccsccshildemodspEmbedded IDE Link CCimplementationincorrectlink

When I run the Filter Example 2 in CCSHILDEMO in C54x the first time, the output plot from running DSP Implementation is wrong. For subsequent runs, the output plot from running DSP Implementation is correct.

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This bug has been fixed in Release 14 Service Pack 2 (R14SP2). For previous releases, please read below for any possible workarounds:

This problem has been fixed in Link for Code Composer Studio 1.4 (R14SP1+). If you are using a previous version, there are currently no known workarounds.

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MATLAB: Does MATLAB hang with run time error messages when I run a script twice that performs RTDX processing in Link for Code Composer Studio 1.3.1 (R14)

This bug has been fixed in Release 14 Service Pack 2 (R14SP2). For previous releases, please read below for any possible workarounds:

This bug has been fixed for Release 14 SP1 (R14SP1). For previous releases, please read below for any possible workarounds:

This problem arises when RTDX is not enabled properly. When RTDX is not enabled properly, data is not received by the host as expected.

For example, you need to enable RTDX before runninng an RTDX program:

...
cc.rtdx.enable
cc.run;
...
<read data from RTDX channel>

Same problem as:

In the "Link for CCS" doc, go to "Outstanding Issues in Link for Code Composer Studio". Go to "Issues Using USB-Based RTDX Emulators and the C6416 DSK and C6713 DSK". Item #1 explains the problem and possible solution.

Refer also to solution 1-T9LCO.

MATLAB: Is there support available for RTDX in Embedded Target for TI C2000 DSP 1.1.1 (R14SP1)

This enhancement has been incorporated in Release 14 Service Pack 2 (R14SP2). For previous product releases, please read below for any possible workarounds:

A patch that will provide RTDX support for "Embedded Target for TI C2000 DSP (tm)" product is now available to download for Embedded Target for TI C2000 (tm) DSP 1.1.1 (R14SP1). After the installation is complete, you will have RTDX blocks included in the C2000 library.

Here are the required steps:

1. Quit MATLAB

2. Download the attached EXE file called "rtdxpatch.exe".

Place the EXE file in the MATLAB root directory on your machine, as returned by typing

matlabroot

at the MATLAB command prompt.

3. While the EXE file is now in the MATLAB root directory on your machine, double click on the "rtdxpatch.exe" file to run it. Make sure you have the “Unzip to folder” field set to “.\” which should be the default setting.

4. Click on unzip to install the files.

5. Restart MATLAB

6. After restarting MATLAB, issue the following command at the MATLAB prompt:

rehash toolboxcache

7. From the MATLAB File menu, select File -> Set Path. Using the Set Path GUI, add the following directory to the MATLAB path:

matlabroot\toolbox\shared\etargets\rtdxblks

After the folder has been added, click "Save" and "Close". When asked if you want to save this change for future MATLAB sessions, reply "Yes".

The RTDX blocks are now available in the c2000 library. Using Simulink browser, the blocks are in the “RTDX Instrumentation” library under "Embedded Target for TI C2000 DSP (tm)". An RTDX demo is also included in this RTDX patch. You can launch the demo by running “c2812rtdxtest” from the MATLAB prompt.

Please make sure that your version of Code Composer Studio (tm) supports RTDX. To add RTDX support for CCS 2.20, you need to apply the RTDX patch (CCS 2.20.18) from Texas Instruments. For more information about this, please refer to the Texas Instruments website at:

http://www.ti.com/

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Related Solutions

MATLAB: Does MATLAB hang with run time error messages when I run a script twice that performs RTDX processing in Link for Code Composer Studio 1.3.1 (R14)

MATLAB: Is there support available for RTDX in Embedded Target for TI C2000 DSP 1.1.1 (R14SP1)

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