C++ (Cpp) nrf_drv_timer_event_address_get Examples

Example #1

File: main.c Project: jrlitzenberger/pocketLab2

/** @brief Function for initializing the PPI peripheral.
*/
static void ppi_init(void)
{
    uint32_t err_code = NRF_SUCCESS;

    err_code = nrf_drv_ppi_init();
    APP_ERROR_CHECK(err_code);

    // Configure 1st available PPI channel to stop TIMER0 counter on TIMER1 COMPARE[0] match, which is every even number of seconds.
    err_code = nrf_drv_ppi_channel_alloc(&ppi_channel1);
    APP_ERROR_CHECK(err_code);
    err_code = nrf_drv_ppi_channel_assign(ppi_channel1,
                                          nrf_drv_timer_event_address_get(&timer1, NRF_TIMER_EVENT_COMPARE0),
                                          nrf_drv_timer_task_address_get(&timer0, NRF_TIMER_TASK_STOP));
    APP_ERROR_CHECK(err_code);

    // Configure 2nd available PPI channel to start timer0 counter at TIMER2 COMPARE[0] match, which is every odd number of seconds.
    err_code = nrf_drv_ppi_channel_alloc(&ppi_channel2);
    APP_ERROR_CHECK(err_code);
    err_code = nrf_drv_ppi_channel_assign(ppi_channel2,
                                          nrf_drv_timer_event_address_get(&timer2, NRF_TIMER_EVENT_COMPARE0),
                                          nrf_drv_timer_task_address_get(&timer0, NRF_TIMER_TASK_START));
    APP_ERROR_CHECK(err_code);

    // Enable both configured PPI channels
    err_code = nrf_drv_ppi_channel_enable(ppi_channel1);
    APP_ERROR_CHECK(err_code);
    err_code = nrf_drv_ppi_channel_enable(ppi_channel2);
    APP_ERROR_CHECK(err_code);
}

Example #2

File: main.c Project: Goodjamp/ble_app_template

static void led_blinking_setup()
{
    uint32_t compare_evt_addr;
    uint32_t gpiote_task_addr;
    nrf_ppi_channel_t ppi_channel;
    ret_code_t err_code;
    nrf_drv_gpiote_out_config_t config = GPIOTE_CONFIG_OUT_TASK_TOGGLE(false);

    err_code = nrf_drv_gpiote_out_init(GPIO_OUTPUT_PIN_NUMBER, &config);
    APP_ERROR_CHECK(err_code);


    nrf_drv_timer_extended_compare(&timer, (nrf_timer_cc_channel_t)0, 200 * 1000UL, NRF_TIMER_SHORT_COMPARE0_CLEAR_MASK, false);

    err_code = nrf_drv_ppi_channel_alloc(&ppi_channel);
    APP_ERROR_CHECK(err_code);

    compare_evt_addr = nrf_drv_timer_event_address_get(&timer, NRF_TIMER_EVENT_COMPARE0);
    gpiote_task_addr = nrf_drv_gpiote_out_task_addr_get(GPIO_OUTPUT_PIN_NUMBER);

    err_code = nrf_drv_ppi_channel_assign(ppi_channel, compare_evt_addr, gpiote_task_addr);
    APP_ERROR_CHECK(err_code);

    err_code = nrf_drv_ppi_channel_enable(ppi_channel);
    APP_ERROR_CHECK(err_code);

    nrf_drv_gpiote_out_task_enable(GPIO_OUTPUT_PIN_NUMBER);
}

Example #3

File: nrf_drv_csense.c Project: TanekLiang/rt-thread

/**
 * @brief Function for initializing and enabling PPI channels.
 *
 * @retval NRF_ERROR_INTERNAL            If there were error initializing or enabling PPI channels.
 * @retval NRF_SUCCESS                   If PPI channels were initialized and enabled successfully.
 */
static ret_code_t ppi_init(void)
{
    ret_code_t err_code;
    uint8_t i;

    err_code = nrf_drv_ppi_init();
    if ((err_code != NRF_SUCCESS) && (err_code != NRF_ERROR_MODULE_ALREADY_INITIALIZED))
    {
        return NRF_ERROR_INTERNAL;
    }

    for(i = 0; i < PPI_REQUIRED_CHANNELS ; i++)
    {
        err_code = nrf_drv_ppi_channel_alloc(&m_ppi_channels[i]);
        if (NRF_SUCCESS != err_code)
        {
            return NRF_ERROR_INTERNAL;
        }
    }

    err_code = nrf_drv_ppi_channel_assign(m_ppi_channels[0], nrf_drv_comp_event_address_get(NRF_COMP_EVENT_CROSS), nrf_drv_timer_task_address_get(&m_timer0, NRF_TIMER_TASK_COUNT));
    if (NRF_SUCCESS != err_code)
    {
       return NRF_ERROR_INTERNAL;
    }
    err_code = nrf_drv_ppi_channel_assign(m_ppi_channels[1], nrf_drv_timer_event_address_get(&m_timer0, NRF_TIMER_EVENT_COMPARE0), nrf_drv_timer_task_address_get(&m_timer1, NRF_TIMER_TASK_CAPTURE1));
    if (NRF_SUCCESS != err_code)
    {
       return NRF_ERROR_INTERNAL;
    }
    err_code = nrf_drv_ppi_channel_fork_assign(m_ppi_channels[1], nrf_drv_comp_task_address_get(NRF_COMP_TASK_STOP));
    if (NRF_SUCCESS != err_code)
    {
       return NRF_ERROR_INTERNAL;
    }
    err_code = nrf_drv_ppi_channel_assign(m_ppi_channels[2], nrf_drv_comp_event_address_get(NRF_COMP_EVENT_READY), nrf_drv_timer_task_address_get(&m_timer0, NRF_TIMER_TASK_CLEAR));
    if (NRF_SUCCESS != err_code)
    {
       return NRF_ERROR_INTERNAL;
    }
    err_code = nrf_drv_ppi_channel_fork_assign(m_ppi_channels[2], nrf_drv_timer_task_address_get(&m_timer1, NRF_TIMER_TASK_CLEAR));
    if (NRF_SUCCESS != err_code)
    {
       return NRF_ERROR_INTERNAL;
    }

    for(i = 0; i < PPI_REQUIRED_CHANNELS ; i++)
    {
        err_code = nrf_drv_ppi_channel_enable(m_ppi_channels[i]);
        if (NRF_SUCCESS != err_code)
        {
            return NRF_ERROR_INTERNAL;
        }
    }

    return NRF_SUCCESS;
}