nRF52810 Timer 2 not working

[parag]

Hello All , 

I want to use timer 2 of nRF52810..my code is not giving any error but timer is also not going to IRQ handler...but if i made the same changes for timer 0 it working..

sharing my code...what should be the issue?..

Thanks in Advance....

void timer2_init(void)

{
NRF_TIMER2->TASKS_STOP = 1; // Stop timer
NRF_TIMER2->MODE = TIMER_MODE_MODE_Timer; // taken from Nordic dev zone
NRF_TIMER2->BITMODE = (TIMER_BITMODE_BITMODE_16Bit << TIMER_BITMODE_BITMODE_Pos);
NRF_TIMER2->PRESCALER = 60 ;
NRF_TIMER2->TASKS_CLEAR = 1; // Clear timer
NRF_TIMER2->CC[1] = 30999; //842//421 ;
NRF_TIMER2->INTENSET = TIMER_INTENSET_COMPARE1_Enabled << TIMER_INTENSET_COMPARE1_Pos; // taken from Nordic dev zone
NRF_TIMER2->SHORTS = (TIMER_SHORTS_COMPARE1_CLEAR_Enabled << TIMER_SHORTS_COMPARE1_CLEAR_Pos);
NVIC_EnableIRQ(TIMER2_IRQn);
NRF_TIMER2->TASKS_START = 1; // Start TIMER STOP AS WE USE IT FOR SOFTWARE UART SO WE START IT WHEN REQUIRED
}

void nrfx_timer_2_irq_handler(void)
{
if (NRF_TIMER2->EVENTS_COMPARE[0] &&
NRF_TIMER2->INTENSET & TIMER_INTENSET_COMPARE1_Msk)
{

// clear compare register event
NRF_TIMER2->EVENTS_COMPARE[0] = 0;

// toggle pin
nrf_gpio_pin_toggle(PIN_OUT) ;
}

}

[parag]

can you please give me reference code...i just want to use timer 2 which goes to IRQ every 1 sec

[Jørgen Holmefjord]

Did you even try the suggestions I gave you?

I tested the following code on a nRF52832/nRF52 DK, and it works as expected, toggling LED every 1 second:

void timer2_init(void)

{
    NRF_TIMER2->TASKS_STOP = 1; // Stop timer
    NRF_TIMER2->MODE = TIMER_MODE_MODE_Timer; // taken from Nordic dev zone
    NRF_TIMER2->BITMODE = (TIMER_BITMODE_BITMODE_16Bit << TIMER_BITMODE_BITMODE_Pos);
    NRF_TIMER2->PRESCALER = 9 ;
    NRF_TIMER2->TASKS_CLEAR = 1; // Clear timer
    NRF_TIMER2->CC[1] = 31250; //842//421 ;
    NRF_TIMER2->INTENSET = TIMER_INTENSET_COMPARE1_Enabled << TIMER_INTENSET_COMPARE1_Pos; // taken from Nordic dev zone
    NRF_TIMER2->SHORTS = (TIMER_SHORTS_COMPARE1_CLEAR_Enabled << TIMER_SHORTS_COMPARE1_CLEAR_Pos);
    NVIC_EnableIRQ(TIMER2_IRQn);
    NRF_TIMER2->TASKS_START = 1; // Start TIMER STOP AS WE USE IT FOR SOFTWARE UART SO WE START IT WHEN REQUIRED
}

void nrfx_timer_2_irq_handler(void)
{
    if (NRF_TIMER2->EVENTS_COMPARE[1] &&
    NRF_TIMER2->INTENSET & TIMER_INTENSET_COMPARE1_Msk)
    {

    // clear compare register event
    NRF_TIMER2->EVENTS_COMPARE[1] = 0;

    // toggle pin
    nrf_gpio_pin_toggle(LED_1) ;
    }

}


/**
 * @brief Function for main application entry.
 */
int main(void)
{
    nrf_gpio_cfg_output(LED_1);
    nrf_gpio_pin_set(LED_1);

    timer2_init();

    while (1)
    {
        __WFI();
    }
}