Python termios.CSTOPB Examples
The following are 3
code examples of termios.CSTOPB().
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Example #1
Source File: serial.py From python-periphery with MIT License | 6 votes |
def _set_stopbits(self, stopbits): if not isinstance(stopbits, int): raise TypeError("Invalid stop bits type, should be integer.") elif stopbits not in [1, 2]: raise ValueError("Invalid stop bits, can be 1, 2.") # Get tty attributes try: (iflag, oflag, cflag, lflag, ispeed, ospeed, cc) = termios.tcgetattr(self._fd) except termios.error as e: raise SerialError(e.errno, "Getting serial port attributes: " + e.strerror) # Modify tty attributes cflag &= ~termios.CSTOPB if stopbits == 2: cflag |= termios.CSTOPB # Set tty attributes try: termios.tcsetattr(self._fd, termios.TCSANOW, [iflag, oflag, cflag, lflag, ispeed, ospeed, cc]) except termios.error as e: raise SerialError(e.errno, "Setting serial port attributes: " + e.strerror)
Example #2
Source File: serial.py From rpi3-webiopi with Apache License 2.0 | 5 votes |
def __init__(self, device="/dev/ttyAMA0", baudrate=9600): if not device.startswith("/dev/"): device = "/dev/%s" % device if isinstance(baudrate, str): baudrate = int(baudrate) aname = "B%d" % baudrate if not hasattr(termios, aname): raise Exception("Unsupported baudrate") self.baudrate = baudrate Bus.__init__(self, "UART", device, os.O_RDWR | os.O_NOCTTY) fcntl.fcntl(self.fd, fcntl.F_SETFL, os.O_NDELAY) #backup = termios.tcgetattr(self.fd) options = termios.tcgetattr(self.fd) # iflag options[0] = 0 # oflag options[1] = 0 # cflag options[2] |= (termios.CLOCAL | termios.CREAD) options[2] &= ~termios.PARENB options[2] &= ~termios.CSTOPB options[2] &= ~termios.CSIZE options[2] |= termios.CS8 # lflag options[3] = 0 speed = getattr(termios, aname) # input speed options[4] = speed # output speed options[5] = speed termios.tcsetattr(self.fd, termios.TCSADRAIN, options)
Example #3
Source File: serial.py From python-periphery with MIT License | 5 votes |
def _get_stopbits(self): # Get tty attributes try: (_, _, cflag, _, _, _, _) = termios.tcgetattr(self._fd) except termios.error as e: raise SerialError(e.errno, "Getting serial port attributes: " + e.strerror) if (cflag & termios.CSTOPB) != 0: return 2 else: return 1