ESP8266 Interrupt problems / Rst cause:2 problems.

Projects Programming
1

Hi everyone.
I'm using a NodeMCU ESP8266 with the Arduino IDE, and for the code I'm writing I need an interrupt, but I can't make it work.
This is the general code that I'm using to test the interrupt behaviour/problems in the ESP8266:

#define ICACHE_RAM_ATTR
const int interruptPin = 14;

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);     
  pinMode(interruptPin, INPUT_PULLUP);
  ICACHE_RAM_ATTR;
  attachInterrupt(digitalPinToInterrupt(interruptPin), handleInterrupt, CHANGE);
  Serial.begin(115200);
}
void ICACHE_RAM_ATTR  handleInterrupt() {
  Serial.println("Interrupt Detected");
}
void loop() {
  digitalWrite(LED_BUILTIN, LOW);
  delay(500);                     
  digitalWrite(LED_BUILTIN, HIGH);  
  delay(500);                      
  Serial.println("...");  //Just for testing purposes.
}

At first, I was having the issue "ISR not in IRAM", I've corrected it with the "ICACHE_RAM_ATTR".
Now my problem is that, apparently, the ESP8266 is resetting continiously with code 2 (reset pin), and output this:
"

ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v8b899c12
~ld

"

I've tried all the things suggested in forums, datasheets, blogs...nothing seems to work, maybe I am doing something wrong.
I have tried the following things:

  1. Changing library version;
  2. Changing interrupt pins;
  3. Changing ICACHE_RAM_ATTR position in the code;
  4. Changing USB cable;
  5. Changing USB port on my computer, 2.0 or 3.0 (yeah I know it's pointless but you never know...);
  6. Changing Interrupt method (CHANGE, RISING, FALLING);
  7. Crying ON the ESP8266 and praying that it will work one day (joking...kind of);

Any suggestion on how I can solve this frustrating problem?