C++ (Cpp) nrf_drv_gpiote_in_event_addr_get Examples

Example #1

File: jshardware.c Project: cyrusmaintea/Espruino

static IOEventFlags jshGetEventFlagsForWatchedPin(nrf_drv_gpiote_pin_t pin) {
  uint32_t addr = nrf_drv_gpiote_in_event_addr_get(pin);

  // sigh. all because the right stuff isn't exported. All we wanted was channel_port_get
  int i;
  for (i=0;i<NUMBER_OF_GPIO_TE;i++)
    if (addr == nrf_gpiote_event_addr_get((nrf_gpiote_events_t)((uint32_t)NRF_GPIOTE_EVENTS_IN_0+(sizeof(uint32_t)*i))))
      return EV_EXTI0+i;
  return EV_NONE;
}

Example #2

File: main.c Project: jtguggedal/Physical_Web_Toy_SDK_11

/** @brief Function for initializing PPI used in infrared signal decoding
 *   The PPI is needed to convert the timer event into a task.
 */
uint32_t ir_ppi_init(void)
{

    uint32_t gpiote_event_addr;
    uint32_t timer_task_addr;
    nrf_ppi_channel_t ppi_channel;
    ret_code_t err_code;
    nrf_drv_gpiote_in_config_t config; 

    config.sense = NRF_GPIOTE_POLARITY_HITOLO;
    config.pull = NRF_GPIO_PIN_PULLUP;
    config.hi_accuracy = false;
    config.is_watcher = false;

    nrf_drv_timer_config_t timer_config;

    timer_config.frequency            = NRF_TIMER_FREQ_1MHz;
    timer_config.mode                 = NRF_TIMER_MODE_TIMER;
    timer_config.bit_width            = NRF_TIMER_BIT_WIDTH_32;
    timer_config.interrupt_priority   = 3;

    err_code = nrf_drv_timer_init(&ir_timer, &timer_config, timer_dummy_handler);
    APP_ERROR_CHECK(err_code);


    // Set up GPIOTE
    err_code = nrf_drv_gpiote_in_init(IR_RECEIVER_PIN_1, &config, ir_in_pin_handler);
    APP_ERROR_CHECK(err_code);
    err_code = nrf_drv_gpiote_in_init(IR_RECEIVER_PIN_2, &config, ir_in_pin_handler);
    APP_ERROR_CHECK(err_code);
    err_code = nrf_drv_gpiote_in_init(IR_RECEIVER_PIN_3, &config, ir_in_pin_handler);
    APP_ERROR_CHECK(err_code);



    // Set up timer for capturing
    nrf_drv_timer_capture_get(&ir_timer, NRF_TIMER_CC_CHANNEL0);

    // Set up PPI channel
    err_code = nrf_drv_ppi_channel_alloc(&ppi_channel);
    APP_ERROR_CHECK(err_code);

    timer_task_addr = nrf_drv_timer_capture_task_address_get(&ir_timer, NRF_TIMER_CC_CHANNEL0);
    gpiote_event_addr = nrf_drv_gpiote_in_event_addr_get(IR_RECEIVER_PIN_1);

    //err_code = nrf_drv_ppi_channel_assign(ppi_channel, gpiote_event_addr, timer_task_addr);
    //APP_ERROR_CHECK(err_code);

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

    nrf_drv_gpiote_in_event_enable(IR_RECEIVER_PIN_1, true);
    nrf_drv_gpiote_in_event_enable(IR_RECEIVER_PIN_2, true);
    nrf_drv_gpiote_in_event_enable(IR_RECEIVER_PIN_3, true);


    
    // Enable timer
    nrf_drv_timer_enable(&ir_timer);

    return 0;

}