//Program: Pico_MultiCore05.ino

int SW1 = 15;
int LED1 = 3;
int LED2 = 4;
bool flag_SW1;

void isr_SW1(){
  flag_SW1 = 1;
}

void setup() {
  //Serial.begin(115200);
  pinMode(LED1,OUTPUT);
  pinMode(SW1,INPUT_PULLUP);
  attachInterrupt(SW1, isr_SW1, FALLING);
}

void loop() {
  digitalWrite(LED1,HIGH);
  delay(500);
  digitalWrite(LED1,LOW);
  delay(500);
  digitalWrite(LED2,LOW);
  flag_SW1 = 0;
}

void setup1() {
  pinMode(LED2,OUTPUT);
}
                                    
void loop1() {
  if(flag_SW1){
    digitalWrite(LED2,HIGH);
  }
}