RTOS/LAUNCHXL-CC2640R2: CC2640R2--ADC pin configuration

In the board files nearly everything is set up so all 8 analog pins can be used.

The code below from the board files are for CC1310 since that was the project I had open but it's the same structure for CC2640R2.

typedef enum CC1310_LAUNCHXL_ADCName {
    CC1310_LAUNCHXL_ADC0 = 0,
    CC1310_LAUNCHXL_ADC1,
    CC1310_LAUNCHXL_ADC2,
    CC1310_LAUNCHXL_ADC3,
    CC1310_LAUNCHXL_ADC4,
    CC1310_LAUNCHXL_ADC5,
    CC1310_LAUNCHXL_ADC6,
    CC1310_LAUNCHXL_ADC7,
    CC1310_LAUNCHXL_ADCDCOUPL,
    CC1310_LAUNCHXL_ADCVSS,
    CC1310_LAUNCHXL_ADCVDDS,

    CC1310_LAUNCHXL_ADCCOUNT
} CC1310_LAUNCHXL_ADCName;

#define Board_ADC0 CC1310_LAUNCHXL_ADC0
#define Board_ADC1 CC1310_LAUNCHXL_ADC1

Try to define and use a Board_ADCx that correspond to the pins you want to use. Since these structs uses an index that would be Board_ADC2 and Board_ADC3 without changing the pin assignment.  

You can read more about how the drivers are built up here: http://dev.ti.com/tirex/content/simplelink_academy_cc2640r2sdk_2_20_03_05/modules/tidrivers/ti_drivers_config/ti_drivers_config.html