def setBreak(self, level=1):
        if not self.hComPort: raise portNotOpenError
        if level:
            win32.SetCommBreak(self.hComPort)
        else:
            win32.ClearCommBreak(self.hComPort)
Set break: Controls TXD. When active, to transmitting is possible.
dataset/ETHPy150Open Robot-Will/Stino/stino/pyarduino/base/pyserial/serialwin32.py/Win32Serial.setBreak