Not possible to detach interrupt

[aliphys]

The onDetect() method can be used to attached interrupts so that when a touch event is detected by the GT911, the specified sub routine is ran specified by handler in the function below.

Arduino_GigaDisplayTouch/src/Arduino_GigaDisplayTouch.cpp

Lines 173 to 177 in 4101b8a

	void Arduino_GigaDisplayTouch::onDetect(void (*handler)(uint8_t, GDTpoint_t*)) {
	_gt911TouchHandler = handler;
	t.start(callback(&queue, &events::EventQueue::dispatch_forever));
	_irqInt.rise(queue.event(mbed::callback(this, &Arduino_GigaDisplayTouch::_gt911onIrq)));
	}

An example of how to use the interrupt is given in Touch_IRQ.ino example.

Arduino_GigaDisplayTouch/examples/Touch_IRQ/Touch_IRQ.ino

Line 47 in 4101b8a

touchDetector.onDetect(gigaTouchHandler);

Arduino_GigaDisplayTouch/examples/Touch_IRQ/Touch_IRQ.ino

Lines 24 to 34 in 4101b8a

	void gigaTouchHandler(uint8_t contacts, GDTpoint_t* points) {
	Serial.print("Contacts: ");
	Serial.println(contacts);
	if (contacts > 0) {
	/* First touch point */
	Serial.print(points[0].x);
	Serial.print(" ");
	Serial.println(points[0].y);
	}
	}

It is not possible to detach the interrupt, using the current public methods. Detaching interrupts is useful for:

• Using delay()
• Sending data over serial, without competing with the interrupt pin