analogWrite inside an interrupt

Official Hardware Portenta Family Portenta H7
8

Currently, mbed_portenta core has some bug, making analogWrite crashing the Portenta_H7

Just try the simplest code and see

#define LEDB_PIN            25

void setup()
{
  pinMode(LEDB_PIN, OUTPUT);

  Serial.begin(115200);
  while (!Serial);

  delay(100);

  Serial.print(F("\nStarting analogWrite_Crash on ")); Serial.println(BOARD_NAME);
  analogWrite(LEDB_PIN, 150);
}


void loop()
{
}

If possible, you can open an issue on ArduinoCore-mbed issues