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LAUNCHXL-CC2640R2

Shweta Savdekar
Prodigy 110 points

Part Number: LAUNCHXL-CC2640R2
Other Parts Discussed in Thread: CC2640,

I am working on LAUNCHXL-CC2640R2 Development Board for Custom PCB CC2640 IDE – CCS Cloud Version 1.2.0 SimpleLink CC2640R2 SDK - 5.30.00.03 TI Code Generation Tools for Arm: 18.12.2.LTS XDCTools: 3.51.03.28 Imported Simple Peripheral Project and have defined it for CC2640R2DK_CXS Please tell me correctly how to configure DIO pin12 for ADC input. Which files need to be modified?

  • 0
    TI__Genius 16825 points

    Hello Shweta,

    Thanks for reaching out. Could you please share how you are configuring the ADC so far (a code-snipped can help)

    Meanwhile I can suggest looking inside out Users Guide for the ADC drivers reference: here. To see how to use the driver.

    BR,

    David.

  • 0
    Prodigy 110 points

    Hello David,

    This is regarding the ADC configuration which is targeted for CC2640R2FYFVR on Custom Board.

     

    Please find below details for your consideration and provide the requested information/solution:

     

    TI Product - LAUNCHXL-CC2640R2

    Targeted for CC2640R2FYFVR on Custom Board

    IDE – CCS Cloud Version 1.2.0

    SimpleLink CC2640R2 SDK - 5.30.00.03

    TI Code Generation Tools for Arm: 18.12.2.LTS

    XDCTools: 3.51.03.28

     

    Imported Sample Project and have defined it for CC2640R2DK_CXS.

    Below is the code Snippet for ADC configuration.

     

    #include <ti/drivers/ADC.h>

     

    // Define name for ADC index

    // This is an index into the ADC_config[] array

    #define ADC_INSTANCE    0

     

    // One-time init of ADC driver

    ADC_init();

     

    // Initialize optional ADC parameters

    ADC_Params params;

    ADC_Params_init(&params);

     

    // Open ADC instance for usage

    ADC_Handle adcHandle = ADC_open(ADC_INSTANCE, &params);

     

    // Sample the analog pin

    ADC_convert(adcHandle, &result);

     

    // Convert the sample to microvolts

    resultUv = ADC_convertToMicroVolts(adcHandle, result);

     

    ADC_close(adcHandle);

     

    Questions:

    Where to find the information on ADC instances and their mapping with the Analog pins for CC2640R2DK_CXS?

    How to change the routing of .adcDIO to the ADC instance?

    How to configure ADC instance for CC2640R2DK_CXS_DIO12_ANALOG ?

    Not able to change the value of .adcDIO from PIN_UNASSIGNED to CC2640R2DK_CXS_DIO12_ANALOG in adcCC26xxHWAttrs programmatically and manually as well.

  • 0 in reply to Shweta Savdekar
    TI__Genius 16825 points

    Hello,

    You can look into the ADCCC26XX.h reference file. There you can see the ADCCC26XX_HWAttrs Struct that you can use to define the .adcDIO.

    I would suggest also the ADC driver example found inside <SDK>\examples\nortos\CC2640R2_LAUNCHXL\drivers\adcbufcontinuous

    BR,

    David.

  • 0 in reply to David
    Prodigy 110 points

    Hello David,

    Thank you for the reply.

    It would be great if you could provide more information on " There you can see the ADCCC26XX_HWAttrs Struct that you can use to define the .adcDIO. "

    Thanks & regards,
    Shweta Savdekar

  • 0 in reply to Shweta Savdekar
    TI__Genius 16825 points

    Hello Shweta,

    Inside the "CC2640R2_LAUNCHXL.c" file you should be able to see an "ADC" section, which is where the analog pin is configured at the ADCCC26XX_HWAttrs struct. Mapping of the ADC pins can be found in the "CC2640R2_LAUNCHXL.h" file. In the Board.h file you can see the defines for the adc/analog pins (Board_ADCBUF0CHANNEL0 for example), which is then used inside the "adcBufContinuousSampling.c" for ".adcChannel" configuration.

    There are two example you can refer to inside the SDK: adcsinglechannel and adcbufcontinuous (<SDK>\examples\rtos\CC2640R2_LAUNCHXL\drivers)

    BR,

    David.

  • 0 in reply to David
    Prodigy 110 points

    Hello David,

    Please let me know the steps on how to configure ADC for read pulses on CC2640R2DK_CXS_DIO12_ANALOG pin for CC2640R2FYFVR.

    As this will help with further module enhancement for our project.

    Thanks & regards,

    Shweta Savdekae

  • 0 in reply to Shweta Savdekar
    TI__Genius 16825 points

    Hello Shweta,

    Have you been able to review the examples I shared?

    BR,

    David.