Stops running programmed test sequence
        :return: None

def stop_program(self, turn_off_load=True):
        """
        Stops running programmed test sequence
        :return: None
        """
        self.__set_buffer_start(self.CMD_STOP_PROG)
        self.__set_checksum()
        self.__send_buffer()
        if turn_off_load and self.load_on:
            self.load_on = False