pressure loop

class Pressure_State(Time_State):
    """This state records a pressure log """

    def __init__(self):
        super().__init__()

    @property
    def name(self):
        return 'pressurel'

    def tick(self, now):
        # Once the job is done, go back to the main screen
        change_to_state('time')

    def enter(self):
        global low_light, pressfile, PLOG_FILE, LOG_MODE, current_time
        low_light = False
        stamped = False
        plog_path = "/sd/"
        pyportal.set_backlight(1.00)
        pyportal.set_background(mugsy_background)
        try:
            board.DISPLAY.refresh(target_frames_per_second=60)
        except AttributeError:
            board.DISPLAY.refresh_soon()
            board.DISPLAY.wait_for_frame()
        gps.update()
        t_stamp = time.mktime(gps.timestamp_utc)
        PLOG_FILE = f"{t_stamp}pressure.txt"
        loop = 1200
        timep = time.monotonic_ns()
        while loop > 0:
            with open((plog_path+PLOG_FILE), LOG_MODE) as pressfile:
                if stamped is False:
                    debugp(t_stamp, gps.latitude, gps.longitude, gps.altitude_m)
                    stamped = True
                debugp(((time.monotonic_ns() - timep) / 1000000000), lps.pressure)
            loop -= 1