ESP32 - GPIO中断触发与事件回调

#define GPIO_INPUT_IO_WAKEUP 32
#define GPIO_INPUT_PIN_SEL (1ULL<<GPIO_INPUT_IO_WAKEUP)
#define ESP_INTR_FLAG_DEFAULT 0

static void IRAM_ATTR gpio_isr_handler(void* arg)
{
    uint32_t gpio_num = (uint32_t) arg;
    xQueueSendFromISR(gpio_evt_queue, &gpio_num, NULL);
}

static void gpio_task_example(void* arg)
{
    uint32_t io_num;
    for(;;) {
        if(xQueueReceive(gpio_evt_queue, &io_num, portMAX_DELAY)) {
            printf("GPIO[%d] intr, val: %d\n", io_num, gpio_get_level(io_num));
            vTaskDelay(5000 / portTICK_PERIOD_MS);
            uart_write_bytes(UART_NUM_0, "F0F0A102000184", 14);
            printf("Set GPIO to OUTPUT Mode and send \"F0F0A102000184\" by UART0.\n");
        }
    }
}void app_main(){
   gpio_config_t io_conf;
   io_conf.intr_type = GPIO_PIN_INTR_POSEDGE;//interrupt of rising edge
   io_conf.pin_bit_mask = GPIO_INPUT_PIN_SEL;//bit mask of the pins, use GPIO4/5 here
   io_conf.mode = GPIO_MODE_INPUT;//set as input mode
   io_conf.pull_up_en = 0;//enable pull-up mode
   gpio_config(&io_conf);

   //install gpio isr service
   gpio_install_isr_service(ESP_INTR_FLAG_DEFAULT);
   //hook isr handler for specific gpio pin
   gpio_isr_handler_add(GPIO_INPUT_IO_WAKEUP, gpio_isr_handler, (void*) GPIO_INPUT_IO_WAKEUP);

　　xTaskCreate(gpio_task_example, "gpio_task_example", 2048, NULL, 10, NULL);　　while(1)　　{　　　　　　}}

 

来源：https://www.cnblogs.com/tokure/p/11398115.html