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	#define GPIO_INPUT_WIEGAND_0     39//39
	#define GPIO_INPUT_WIEGAND_1     35//35
	
void InitInterrupts(){
	gpio_config_t io_conf = { };
	//interrupt of rising edge
	io_conf.intr_type = GPIO_INTR_DISABLE;	//GPIO_INTR_NEGEDGE
	//bit mask of the pins, use GPIO4/5 here
	io_conf.pin_bit_mask = (1ULL << GPIO_INPUT_WIEGAND_0);
	//set as input mode
	io_conf.mode = GPIO_MODE_INPUT;
	//enable pull-up mode
	io_conf.pull_down_en = 0;
	gpio_config(&io_conf);

	//interrupt of rising edge
	io_conf.intr_type = GPIO_INTR_DISABLE;	//GPIO_INTR_NEGEDGE
	//bit mask of the pins, use GPIO4/5 here
	io_conf.pin_bit_mask = (1ULL << GPIO_INPUT_WIEGAND_1);
	//set as input mode
	io_conf.mode = GPIO_MODE_INPUT;
	//enable pull-up mode
	io_conf.pull_down_en = 0;
	gpio_config(&io_conf);

	//create a queue to handle gpio event from isr
	gpio_evt_queue = xQueueCreate(40, sizeof(uint32_t));
	//start gpio task
	xTaskCreate(gpio_task_wiegand, "gpio_wiegand", 2048, NULL, 10,
			&TaskHandle_xtask_wiegand);


	//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_WIEGAND_1, gpio_isr_handler,
			(void*) GPIO_INPUT_WIEGAND_1);
	//hook isr handler for specific gpio pin
	gpio_isr_handler_add(GPIO_INPUT_WIEGAND_0, gpio_isr_handler,
			(void*) GPIO_INPUT_WIEGAND_0);

	gpio_set_intr_type(GPIO_NUM_39, GPIO_INTR_NEGEDGE);
	gpio_intr_enable(GPIO_NUM_39);
	gpio_set_intr_type(GPIO_NUM_35, GPIO_INTR_NEGEDGE);
	gpio_intr_enable(GPIO_NUM_35);
}

Code: Select all

bool first_interrupt = 0;
static void IRAM_ATTR gpio_isr_handler(void *arg) {
	uint32_t gpio_num = (uint32_t) arg;
	if (!first_interrupt ) {//once
		first_interrupt = 1;
		gpio_set_intr_type(GPIO_INPUT_WIEGAND_0, GPIO_INTR_HIGH_LEVEL);
		gpio_set_intr_type(GPIO_INPUT_WIEGAND_1, GPIO_INTR_HIGH_LEVEL);
	} else {
		xQueueSendFromISR(gpio_evt_queue, &gpio_num, NULL);
	}
}

void InitInterrupts() {
	//zero-initialize the config structure.
//	esp_sleep_config_gpio_isolate();
//	rtc_gpio_deinit(GPIO_NUM_39);
//	rtc_gpio_deinit(GPIO_NUM_35);

	gpio_config_t io_conf = { };

	//interrupt of rising edge
	io_conf.intr_type = GPIO_INTR_LOW_LEVEL;	//GPIO_INTR_NEGEDGE
	//bit mask of the pins, use GPIO4/5 here
	io_conf.pin_bit_mask = (1ULL << GPIO_INPUT_WIEGAND_0);
	//set as input mode
	io_conf.mode = GPIO_MODE_INPUT;
	//enable pull-up mode
	io_conf.pull_down_en = 0;
	gpio_config(&io_conf);

	//interrupt of rising edge
	io_conf.intr_type = GPIO_INTR_LOW_LEVEL;	//GPIO_INTR_NEGEDGE
	//bit mask of the pins, use GPIO4/5 here
	io_conf.pin_bit_mask = (1ULL << GPIO_INPUT_WIEGAND_1);
	//set as input mode
	io_conf.mode = GPIO_MODE_INPUT;
	//enable pull-up mode
	io_conf.pull_down_en = 0;
	gpio_config(&io_conf);

	//create a queue to handle gpio event from isr
	gpio_evt_queue = xQueueCreate(40, sizeof(uint32_t));
	//start gpio task
	xTaskCreate(gpio_task_wiegand, "gpio_wiegand", 2048, NULL, 10,
			&TaskHandle_xtask_wiegand);

	//change gpio interrupt type for one pin
	gpio_set_intr_type(GPIO_INPUT_WIEGAND_0, GPIO_INTR_ANYEDGE);
	gpio_set_intr_type(GPIO_INPUT_WIEGAND_1, GPIO_INTR_ANYEDGE);

	//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_WIEGAND_1, gpio_isr_handler,
			(void*) GPIO_INPUT_WIEGAND_1);
	//hook isr handler for specific gpio pin
	gpio_isr_handler_add(GPIO_INPUT_WIEGAND_0, gpio_isr_handler,
			(void*) GPIO_INPUT_WIEGAND_0);
}