def setXON(self, level=True):
"""Platform specific - set flow state."""
if not self.hComPort: raise portNotOpenError
if level:
win32.EscapeCommFunction(self.hComPort, win32.SETXON)
else:
win32.EscapeCommFunction(self.hComPort, win32.SETXOFF)
def setDTR(self, level=1):
"""Set terminal status line: Data Terminal Ready"""
if not self.hComPort: raise portNotOpenError
if level:
self._dtrState = win32.DTR_CONTROL_ENABLE
win32.EscapeCommFunction(self.hComPort, win32.SETDTR)
else:
self._dtrState = win32.DTR_CONTROL_DISABLE
win32.EscapeCommFunction(self.hComPort, win32.CLRDTR)
def setRTS(self, level=1):
"""Set terminal status line: Request To Send"""
if not self.hComPort: raise portNotOpenError
if level:
self._rtsState = win32.RTS_CONTROL_ENABLE
win32.EscapeCommFunction(self.hComPort, win32.SETRTS)
else:
self._rtsState = win32.RTS_CONTROL_DISABLE
win32.EscapeCommFunction(self.hComPort, win32.CLRRTS)
def setXON(self, level=True):
"""\
Manually control flow - when software flow control is enabled.
This will send XON (true) and XOFF (false) to the other device.
WARNING: this function is not portable to different platforms!
"""
if not self.hComPort: raise portNotOpenError
if level:
win32.EscapeCommFunction(self.hComPort, win32.SETXON)
else:
win32.EscapeCommFunction(self.hComPort, win32.SETXOFF)
def set_output_flow_control(self, enable=True):
"""\
Manually control flow - when software flow control is enabled.
This will do the same as if XON (true) or XOFF (false) are received
from the other device and control the transmission accordingly.
WARNING: this function is not portable to different platforms!
"""
if not self.is_open:
raise portNotOpenError
if enable:
win32.EscapeCommFunction(self._port_handle, win32.SETXON)
else:
win32.EscapeCommFunction(self._port_handle, win32.SETXOFF)
def setDTR(self, level=1):
"""Set terminal status line: Data Terminal Ready"""
# remember level for reconfigure
if level:
self._dtrState = win32.DTR_CONTROL_ENABLE
else:
self._dtrState = win32.DTR_CONTROL_DISABLE
# also apply now if port is open
if self.hComPort:
if level:
win32.EscapeCommFunction(self.hComPort, win32.SETDTR)
else:
win32.EscapeCommFunction(self.hComPort, win32.CLRDTR)
def setRTS(self, level=1):
"""Set terminal status line: Request To Send"""
# remember level for reconfigure
if level:
self._rtsState = win32.RTS_CONTROL_ENABLE
else:
self._rtsState = win32.RTS_CONTROL_DISABLE
# also apply now if port is open
if self.hComPort:
if level:
win32.EscapeCommFunction(self.hComPort, win32.SETRTS)
else:
win32.EscapeCommFunction(self.hComPort, win32.CLRRTS)
def _update_dtr_state(self):
"""Set terminal status line: Data Terminal Ready"""
if self._dtr_state:
win32.EscapeCommFunction(self._port_handle, win32.SETDTR)
else:
win32.EscapeCommFunction(self._port_handle, win32.CLRDTR)
def _update_rts_state(self):
"""Set terminal status line: Request To Send"""
if self._rts_state:
win32.EscapeCommFunction(self._port_handle, win32.SETRTS)
else:
win32.EscapeCommFunction(self._port_handle, win32.CLRRTS)
def dtr_low(dev=None):
if not dev: dev = g
if isWin:
r = win32.EscapeCommFunction(dev._port_handle, win32.SETDTR) #r=1
def dtr_high(dev=None):
'''s.setDTR(False) '''
if not dev: dev = g
if isWin: r = win32.EscapeCommFunction(dev._port_handle, win32.CLRDTR)
