RTOS/CC2640R2F: TIMER

Saikat Jana1

Other Parts Discussed in Thread: CC2640

I am trying to enable TIMER0 and TIMER1 in cc2640 but the Board_GPTIMER0A opened successfully and then I want open Board_GPTIMER3A but I cant open this.

can you please guide me how to do this and I also attached my code please guide me whats wrong with it

            GPTimerCC26XX_Params_init(&params);
            params.width          = GPT_CONFIG_16BIT;
            params.mode           = GPT_MODE_PERIODIC_UP;
            params.debugStallMode = GPTimerCC26XX_DEBUG_STALL_OFF;
            hTimer = GPTimerCC26XX_open(Board_GPTIMER3A, &params);
            if(hTimer == NULL) {
              Log_error0("Failed to open GPTimer");
              Task_exit();
            }
            Types_FreqHz  freq;
            BIOS_getCpuFreq(&freq);
            GPTimerCC26XX_Value loadVal = freq.lo / 10 - 1; 
            GPTimerCC26XX_setLoadValue(hTimer, loadVal);
            GPTimerCC26XX_registerInterrupt(hTimer, timerCallback, GPT_INT_TIMEOUT);

        // Timer Configuration For Shutdown

              GPTimerCC26XX_Params paramsShutdown;
              GPTimerCC26XX_Params_init(&paramsShutdown);
              paramsShutdown.width          = GPT_CONFIG_16BIT;
              paramsShutdown.mode           = GPT_MODE_PERIODIC_UP;
              paramsShutdown.debugStallMode = GPTimerCC26XX_DEBUG_STALL_OFF;
              sTimer = GPTimerCC26XX_open(Board_GPTIMER0A, &paramsShutdown);
              if(sTimer == NULL) {
                Log_error0("Failed to open GPTimer");
                Task_exit();
              }
              Types_FreqHz  freqShutdown;
              BIOS_getCpuFreq(&freqShutdown);
              GPTimerCC26XX_Value loadValShutdown = freqShutdown.lo /100 - 1; 
              GPTimerCC26XX_setLoadValue(sTimer, loadValShutdown);
              GPTimerCC26XX_registerInterrupt(sTimer, timerCallback1, GPT_INT_TIMEOUT);

over 6 years ago

0 Saikat Jana1 over 6 years ago

Prodigy 140 points

1st GPTimerCC26XX_open is sucessfully opend the timer but the 2nd GPTimerCC26XX_open cant open it returns null

0 Clément over 6 years ago in reply to Saikat Jana1

TI__Guru** 101460 points

Hi,

I could not reproduce your issue.

In which context are you calling GPTimerCC26XX_open()?

What is your SDK version?

Have you tried to debug step by step inside the function GPTimerCC26XX_open() to see what could be wrong?

If needed, here is the code I used:

#include <ti/drivers/GPIO.h>
#include <xdc/runtime/Types.h>
#include <ti/sysbios/knl/Task.h>
#include <ti/drivers/timer/GPTimerCC26XX.h>
#include <ti/sysbios/BIOS.h>


GPTimerCC26XX_Handle hTimer;
GPTimerCC26XX_Handle sTimer;


void timerCallback(GPTimerCC26XX_Handle handle, GPTimerCC26XX_IntMask interruptMask)
{
    GPTimerCC26XX_stop(hTimer);
    GPIO_toggle(Board_GPIO_LED0);
    GPTimerCC26XX_start(hTimer);
}

void timerCallback1(GPTimerCC26XX_Handle handle, GPTimerCC26XX_IntMask interruptMask)
{
    GPTimerCC26XX_stop(sTimer);
    GPIO_toggle(Board_GPIO_LED1);
    GPTimerCC26XX_start(sTimer);
}

/*
 *  ======== mainThread ========
 */
void *mainThread(void *arg0)
{
    /* Call driver init functions. */
    GPIO_init();

    GPTimerCC26XX_Params params;
    GPTimerCC26XX_Params_init(&params);
    params.width          = GPT_CONFIG_16BIT;
    params.mode           = GPT_MODE_PERIODIC_UP;
    params.debugStallMode = GPTimerCC26XX_DEBUG_STALL_OFF;
    hTimer = GPTimerCC26XX_open(Board_GPTIMER3A, &params);
    if(hTimer == NULL) {
      //Log_error0("Failed to open GPTimer");
      Task_exit();
    }
    Types_FreqHz  freq;
    BIOS_getCpuFreq(&freq);
    GPTimerCC26XX_Value loadVal = freq.lo / 10 - 1;
    GPTimerCC26XX_setLoadValue(hTimer, loadVal);
    GPTimerCC26XX_registerInterrupt(hTimer, timerCallback, GPT_INT_TIMEOUT);
    GPTimerCC26XX_start(hTimer);


    // Timer Configuration For Shutdown

    GPTimerCC26XX_Params paramsShutdown;
    GPTimerCC26XX_Params_init(&paramsShutdown);
    paramsShutdown.width          = GPT_CONFIG_16BIT;
    paramsShutdown.mode           = GPT_MODE_PERIODIC_UP;
    paramsShutdown.debugStallMode = GPTimerCC26XX_DEBUG_STALL_OFF;
    sTimer = GPTimerCC26XX_open(Board_GPTIMER0A, &paramsShutdown);
    if(sTimer == NULL) {
        //Log_error0("Failed to open GPTimer");
        Task_exit();
    }
    Types_FreqHz  freqShutdown;
    BIOS_getCpuFreq(&freqShutdown);
    GPTimerCC26XX_Value loadValShutdown = freqShutdown.lo /100 - 1;
    GPTimerCC26XX_setLoadValue(sTimer, loadValShutdown);
    GPTimerCC26XX_registerInterrupt(sTimer, timerCallback1, GPT_INT_TIMEOUT);
    GPTimerCC26XX_start(sTimer);

    while(1);

    return (NULL);
}

Best regards,

0 Saikat Jana1 over 6 years ago in reply to Clément

Prodigy 140 points

Thanks For The Response

So i am using Simple Link SDK - simplelink_cc2640r2_sdk_3_10_00_15

I am Calling GPTimerCC26XX_open() form Project Zero_init () routine of Project Zero Example Project ( Imported from Resource Viewer )

But in my case

hTimer = GPTimerCC26XX_open(Board_GPTIMER3A, &params); opened Successfully but after execution of that I also called the 2nd Timer Open Routine

sTimer = GPTimerCC26XX_open(Board_GPTIMER0A, &paramsShutdown); In the Same way like You, but every time GPTimerCC26XX_open() for sTimer returns NULL

Thanks For Your Support

0 Clément over 6 years ago in reply to Saikat Jana1

TI__Guru** 101460 points

Please check that this timer is not already used elsewhere and choose a different timer if this is the case.

Regards,

Sub-1 GHz

Sub-1 GHz forum

RTOS/CC2640R2F: TIMER