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ESP32 - GPIO中断触发与事件回调

时间:2019-08-23 09:48:51      阅读:759      评论:0      收藏:0      [点我收藏+]
#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)
  {
    
  }
}

 

ESP32 - GPIO中断触发与事件回调

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

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