def setBreak(self, level=1):
"""Set break: Controls TXD. When active, to transmitting is possible."""
if not self.hComPort: raise portNotOpenError
if level:
win32.SetCommBreak(self.hComPort)
else:
win32.ClearCommBreak(self.hComPort)
def sendBreak(self, duration=0.25):
"""Send break condition. Timed, returns to idle state after given duration."""
if not self.hComPort: raise portNotOpenError
import time
win32.SetCommBreak(self.hComPort)
time.sleep(duration)
win32.ClearCommBreak(self.hComPort)
def _update_break_state(self):
"""Set break: Controls TXD. When active, to transmitting is possible."""
if not self.is_open:
raise portNotOpenError
if self._break_state:
win32.SetCommBreak(self._port_handle)
else:
win32.ClearCommBreak(self._port_handle)
