#define LED1 12
#define LED2 14
hw_timer_t*My_timer1 = NULL;
hw_timer_t*My_timer2 = NULL;
int ledState1 = 0;
int ledState2 = 0;

void IRAM_ATTR onTimer1(){
  ledState1 =! ledState1;
digitalWrite(LED1, ledState1);
}

void IRAM_ATTR onTimer2(){
  ledState2 =! ledState2;
digitalWrite(LED2, ledState2);
}

void setup() {
  pinMode(LED1, OUTPUT);
  My_timer1 = timerBegin(0, 80, true);
  timerAttachInterrupt(My_timer1, &onTimer1, true);
  timerAlarmWrite(My_timer1, 1000000, true);
  timerAlarmEnable(My_timer1);
  pinMode(LED2, OUTPUT);
  My_timer2 = timerBegin(1, 200, true);
  timerAttachInterrupt(My_timer2, &onTimer2, true);
  timerAlarmWrite(My_timer2, 1000000, true);
  timerAlarmEnable(My_timer2);
}

void loop() {
  //do nothing
}