OMAP-L138: Looking for example starter projects for LCDKOMAPL138

Hello,

In Processor SDK RTOS, there is a McASP audio example that takes audio input from a PC using the LINE IN port and outputs it to speakers/headphones via the LINE OUT port. It should be possible to modify this example to use the MIC IN port instead as well if needed. 

There is a GPIO led blinking example that toggles the LEDs via software. It can be modified to blink an LED when a button is pushed with the following modifications.

In GPIO_board.c:

//    GPIO_DEVICE_CONFIG(GPIO_LED0_PORT_NUM, GPIO_LED0_PIN_NUM) |
//    GPIO_CFG_IN_INT_RISING | GPIO_CFG_INPUT,

 /* Input pin with interrupt enabled */
    GPIO_DEVICE_CONFIG(GPIO_LED0_PORT_NUM, 37) |    
    GPIO_CFG_IN_INT_BOTH_EDGES | GPIO_CFG_INPUT,

The push buttons on the LCDK are connected to GPIO2[4] and GPIO2[5]. You can see this corresponds to pins 37 and 38, respectively, by referring to Table 21-1 in the OMAP-L138 Technical Reference Manual. 

In main_led_blink.c:

//GPIO_socSetBankInt(GPIO_LED0_PORT_NUM, GPIO_LED0_PIN_NUM, NULL);
GPIO_socSetBankInt(GPIO_LED0_PORT_NUM, 37, NULL);

//    while(1)
//    {
//#if defined(SOC_K2H) || defined(SOC_K2K) || defined(SOC_K2E) || defined(SOC_K2G) || defined(SOC_OMAPL137) || defined(SOC_OMAPL138) || defined(SOC_AM65XX) || defined(SOC_J721E)
//        GPIO_toggle(USER_LED0);
//#endif
//        AppDelay(DELAY_VALUE);
//        if (testOutput)
//        {
//            UART_printStatus("\n All tests have passed \n");
//            testOutput = 0;
//        }
//    }

while(1); //wait here for user input instead of toggling via code

This code will blink LED D4 when the S3 button is pushed (S3 actually corresponds to pin 38, not 37, but there is a bug in the GPIO driver that +1 to the pin #...this will be fixed in the next SDK release).

I hope this helps. I'm attaching some links below as well to help you get started. If you have any questions please let me know.

Processor SDK for OMAPL138

Processor SDK RTOS McASP Documentation

Processor SDK RTOS GPIO Documentation

Processor SDK RTOS Getting Started Guide

OMAP-L138/C6748 Low-Cost Development Kit (LCDK) User's Guide

Regards,
Sahin

Thank you. I am checking these out. I will get back in touch if I run into any issues.

Hi Sahin, I installed the RTOS folder, but I am not able to find any project from using CCS v9.3.0.

I have both CCS v9.3.0 and CCSv7.0.0 installed on my PC. 

Can you please let me know what the exact sequence of steps is to open audio_benchmark_starterkit using CCS?

The CCS projects for the PDK project need to be generated using the pdkProjectCreate script as described here: http://software-dl.ti.com/processor-sdk-rtos/esd/docs/latest/rtos/index_overview.html#pdk-example-and-test-project-creation

For example, to build the GPIO example project for the lcdkOMAPL138 DSP core, invoke the following commands:

cd C:\ti\pdk_omapl138_1_0_10\packages
pdksetupenv.bat
pdkProjectCreate.bat OMAPL138 lcdkOMAPL138 little gpio all dsp

The CCS projects will then be located under \pdk_omapl138_1_0_10\packages\MyExampleProjects and can be imported into CCS using the Import Wizard.

The audio benchmark starterkit is considered a "demo" so its located under the demos folder in the SDK. Similarly, the CCS projects for it need to be generated using the benchmarkProjectCreate script as described here: http://software-dl.ti.com/processor-sdk-rtos/esd/docs/latest/rtos/index_examples_demos.html#how-to-build-the-benchmarks

So you will need to run the following commands to build all the benchmark projects:

cd C:\ti\processor_sdk_rtos_omapl138_6_01_00_08
setupenv.bat
cd demos/audio-benchmark-starterkit
BenchmarkProjectCreate.bat OMAPL138 all all

Note, there is a bug in the 6.1/6.2 release that will need to be fixed before running the above commands. You will need to update the following lines in BenchmarkProjectCreate.bat to match the lib versions in your SDK.

REM Version of DSPLIB
set DSPLIB_VERSION=3_4_0_3

REM Version of MATHLIB
set MATHLIB_VERSION=3_1_2_3

The benchmark projects will then be located under audio-benchmark-starterkit/BenchmarkProjects and can be imported into CCS.

Regards,
Sahin

Hi Sahin, I am getting the following error when I run the pdkProjectCreate.bat as you instructed.

Hi Sahin, I edited the pdkProjectCreate.bat to use the ccs file that I had installed c:\ti\ccs930\ccs. And I was able to move forward a little bit. However, now I am stuck with the following error.

Hi Sahin, following up on this. Your help is much appreciated.

Hi Mahesh

Sahin is out of office today. Please expect a response on Monday.

 I regret the delay

Regards

Mukul 

Hello Sahin and Mukul, following up on this. Thanks very much for your help.

Mahesh Godavarti said:

  !ERROR: Unknown product-type ID 'com.ti.pdk.omapl138'!

    NOTE: Refer to the following list of available product-type IDs (the display-names in square brackets are for reference only):

        ti.mas.dsplib.c64Px [DSPLIB C64x+]
        ti.mas.dsplib.c674x [DSPLIB C674x]
        ti.mas.mathlib.c674x [MATHLIB C674x]
        com.ti.rtsc.SYSBIOS [SYS/BIOS]
        com.ti.uia [System Analyzer (UIA Target)]
        com.ti.rtsc.XDAIS [XDAIS]
        com.ti.rtsc.XDCtools [XDCtools]

It appears the PDK package hasn't been discovered and installed by CCS.

Within CCS, please navigate to Window > Preferences > Code Composer Studio > Products > Refresh and select and install the omapl138 PDK package. If you don't see it, make sure "Show newly discovered products only" is unchecked in the Refresh window.

Regards,
Sahin

Thanks will try and let you know.

Thanks it worked. I will post again if I run into any new issues.

Hi Sahin, now I moved forward to installing the audio benchmark project.

I had to edit CCS_INSTALL_PATH to point to where my ccs is installed which was C:\ti\ccs930\ccs

I got the error shown below. Looks like the folder is missing macros.ini. Is this an important file or can I just ignore this error?

Hi Sahin, I have started trying to build the GPIO project on CCS.9.3.0.

I am attaching screenshots of my steps.

Import the project

I built the project without editing the Properties of the project.

I got the following error as the target was not selected.

So, I edited the properties of the project to point to the target. But I left out the linker command file

I verified that the target was connected to the project.

I rebuilt the project and selected debug to run the project on the target.

However, I got the following error:

Then, I tried after adding the OMAPL138.cmd to the project, but there was a clash between the existing linker.cmd file in the project and the OMAPL138.cmd file as shown below. I tried #if 0 the definition in OMALL138.cmd and I get the original error (when I did not add the OMAPL138.cmd to the project)

Can you please help?

Thanks!

Okay, I was able to figure out how to turn off the errors. I went to Debug configurations and unchecked PRU_0, PRU_1, and ARM_9

Now, I am trying to figure out how to unset the build option --USE-BIOS. I tried editing the make file, but it warned me that it was generated from somewhere else. Where can I unset this option?

Thanks!

Okay, looks it is set in the pdkProjectCreate.bat. So, I think it's okay for me to edit the make file option.

%CCS_INSTALL_PATH%\%AUTO_CREATE_COMMAND% -data %MY_WORKSPACE% -application com.ti.ccstudio.apps.projectCreate -ccs.name %%~nI -ccs.outputFormat %OUTPUT_FORMAT% -ccs.setCompilerOptions "-DUSE_BIOS" -ccs.device %CCS_DEVICE% -ccs.endianness %ENDIAN% -ccs.kind executable -ccs.cgtVersion %CGT_VERSION% -rtsc.xdcVersion %XDC_VERSION% -rtsc.enableDspBios -rtsc.biosVersion %BIOS_VERSION% -rtsc.buildProfile "debug" -rtsc.products "%RTSC_PRODUCTS%" -rtsc.platform "%RTSC_PLATFORM_NAME%" -rtsc.target %RTSC_TARGET% -ccs.rts libc.a -ccs.args %%~nI%%~xI %SIMULATOR_SUPPORT_DEFINE% -ccs.overwrite full -ccs.setPostBuildStep "${TI_PDK_INSTALL_DIR}/packages/pdkAppImageCreate.bat ${TI_PDK_INSTALL_DIR}/packages ${CG_TOOL_ROOT} ${PROJECT_LOC}/${ConfigName} ${ProjName} %SOC% %PROCESSOR%" 

I cannot turn the USE_BIOS definition off. Can you please tell me where I can do this.

I created a new project by editing the pdkProjectCreate.bat file. However, this option keeps showing up as one of the options for the compiler.

Thanks!

Also, in the audio-benchmark-starterkit the only three projects available are for FIR, IIR, and FFT. I confirmed this by reading the user guide provided. Maybe, I need to reinstall the processor-sdk-rtos package?

If you can respond that will be great.

Essentially, there are two things I need help with:

1. How to turn off USE_BIOS in the GPIO project

2. How to install the McASP project

Okay, I was able to figure out how to install the McASP project.

I did the following:

c:\ti\pdk_omapl138_1_0_10\packages>pdkProjectCreate.bat OMAPL138 lcdkOMAPL138 little mcasp all dsp

So, I need two questions answered:

1. How to turn off USE_BIOS compiler option

2. Whether the missing macros.ini in the audio-benchmark-starterkit are important

You are correct, the audio-benchmark-starterkit has three projects, FIR, IIR, and FFT. 

As you already figured out, you need to create a target configuration to load and run the code as described here: http://software-dl.ti.com/processor-sdk-rtos/esd/docs/latest/rtos/index_how_to_guides.html#connecting-the-lcdk-to-code-composer-studio

1. The USE_BIOS compiler option can be removed by going to the project's Build Settings > Build > C6000 Compiler > Predefined Symbols and removing it from the list. 

2. The macros.ini file is used to set the paths for various components in the SDK. It is concerning that the script was unable to locate it. Please make sure you have set the SDK install path and setup the environment as described here: http://software-dl.ti.com/processor-sdk-rtos/esd/docs/latest/rtos/index_examples_demos.html#using-ccs-projects

Regards,
Sahin