CCS/CC1350: Analog input in CC1350

quentin baudenon

Part Number: CC1350

Tool/software: Code Composer Studio

Hi All,

A little question: is reading an analog input possible using one of the DIO of the CC1350 ? I am using the chip as a transceiver right now, sending and receiving BLE beacons and I would like to be able to monitor a current or voltage in my circuit using DIO5 but I am not sure analog signals are compatibles with this input (yet there is an ADC in the chip, right?). If the answer is yes, what are the commands I need to use in CCS?

Thanks a lot for your help,

Quentin

over 6 years ago

0 Keith Barkley over 6 years ago

Guru 35580 points

The diagram shows an ADC:

http://www.ti.com/general/docs/datasheetdiagram.tsp?genericPartNumber=CC1350&diagramId=SWRS183A

0 quentin baudenon over 6 years ago in reply to Keith Barkley

Prodigy 60 points

Thanks for your response Keith. I have finally found what I was looking for in the datasheet, I can use DIO 5 as a GPIO. Does someone knows which command to use, or is there any example I can follow?

0 Keith Barkley over 6 years ago in reply to quentin baudenon

Guru 35580 points

Since it uses SimpleLink...

training.ti.com/developing-rtos-application-using-simplelink-sdk

0 Phil Bresnahan over 6 years ago in reply to Keith Barkley

Prodigy 200 points

Here's what I used with the CC2640R2. It's based off of the SimpleLink Academy in TI-REX under Labs/TI Drivers/Project Zero. I would guess there's a similar one for CC1350.

/* Driver Header files */
#include <ti/drivers/GPIO.h>
#include <ti/drivers/ADC.h>
#include <ti/display/Display.h>

/* Board Header file */
#include "Board.h"

/*
*  ======== mainThread ========
*/

void *mainThread(void *arg0)
{
  /* 1 second delay */
  uint32_t time = 1;

  /* Call driver init functions */
  GPIO_init();
  ADC_init();

  /* Open ADC Driver */
  ADC_Handle adc;
  ADC_Params params;
  ADC_Params_init(&params);
  adc = ADC_open(Board_ADC0, &params);

  /* Open Display Driver */
  Display_Handle    displayHandle;
  Display_Params    displayParams;
  Display_Params_init(&displayParams);
  displayHandle = Display_open(Display_Type_UART, NULL);

  while (1) {

      int_fast16_t res;
      uint16_t adcValue;
      res = ADC_convert(adc, &adcValue);

      if (res == ADC_STATUS_SUCCESS) {
          Display_printf(displayHandle, 1, 0, "ADC Reading %d", adcValue);

          if(adcValue >= 1000){
              GPIO_write(Board_GPIO_LED0, Board_GPIO_LED_ON);
          } else{
              GPIO_write(Board_GPIO_LED0, Board_GPIO_LED_OFF);
          }
      }

      sleep(time);
  }
}

0 quentin baudenon over 6 years ago in reply to Phil Bresnahan

Prodigy 60 points

Thanks a lot Phil, that works perfectly!

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CCS/CC1350: Analog input in CC1350