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This may throw a SerialException if the port cannot be opened. Nz.Port must be configured before it can be used.zPort is already open.� zpython serial module� zCould not open port: %sT)Z_port�SerialException�is_open�typer r ZgetPortIdentifierr �open�sPort� Exception�_reconfigurePortZgetInputStream� _instreamZgetOutputStream� _outstream)�selfZportId�msgr r r r" = s " z Serial.openc C s� | j std��| j �d� | jtkr.tjj}nJ| jtkrBtjj }n6| jt krVtjj }n"| jt krjtjj }ntd| j ��| jtkr�tjj}n6| jtkr�tjj}n"| jtkr�tjj}ntd| j ��| jtkr�tjj}nb| jtkr�tjj}nN| jtkr�tjj}n:| jtk�rtjj}n$| jtk�r*tjj}ntd| j ��d }}| j �r`|tjj O }|tjj O }| j �r�|tjj O }|tjj!O }| j �"| j#|||� | j �$||B � | j%dk�r�| j �t&| j%d �� n | j �'� dS ) z,Set communication parameters on opened port.z'Can only operate on a valid port handle� zunsupported bytesize: %rz"unsupported number of stopbits: %rzunsupported parity type: %rr i� N)(r# r ZenableReceiveTimeoutZ _bytesizeZFIVEBITSr r Z DATABITS_5ZSIXBITSZ DATABITS_6Z SEVENBITSZ DATABITS_7Z EIGHTBITSZ DATABITS_8� ValueErrorZ _stopbitsZ STOPBITS_ONEZ STOPBITS_1ZSTOPBITS_ONE_POINT_FIVEZ STOPBITS_1_5Z STOPBITS_TWOZ STOPBITS_2Z_parityZ PARITY_NONEZ PARITY_EVENZ PARITY_ODDZ PARITY_MARKZ PARITY_SPACEZ_rtsctsZFLOWCONTROL_RTSCTS_INZFLOWCONTROL_RTSCTS_OUTZ_xonxoffZFLOWCONTROL_XONXOFF_INZFLOWCONTROL_XONXOFF_OUTZsetSerialPortParamsZ _baudrateZsetFlowControlMode�_timeout�intZdisableReceiveTimeout)r( Z jdatabitsZ jstopbitsZjparityZjflowinZjflowoutr r r r% T sT zSerial._reconfigurePortc C s: | j r6| jr0| j�� | j�� | j�� d| _d| _ dS )z Close portNF)r r# r& �closer' �r( r r r r. � s z Serial.closec C s | j s t� �| j�� S )z>Return the number of characters currently in the input buffer.)r# �PortNotOpenErrorr& � availabler/ r r r � in_waiting� s zSerial.in_waitingr c C sZ | j s t� �t� }|dkrRt|�|k rR| j�� }|dkrF| jdkrPqRq|�|� qt|�S )z� Read size bytes from the serial port. If a timeout is set it may return less characters as requested. With no timeout it will block until the requested number of bytes is read. r ���) r# r0 � bytearray�lenr& �read�timeoutr �bytes)r( �sizer6 �xr r r r6 � s z Serial.readc C sB | j s t� �t|ttf�s.tdtt|�f ��| j�|� t |�S )z-Output the given string over the serial port.z expected %s or bytearray, got %s) r# r0 � isinstancer8 r4 � TypeErrorr! r' �writer5 )r( �datar r r r= � s z Serial.writec C s" | j s t� �| j�| j�� � dS )z9Clear input buffer, discarding all that is in the buffer.N)r# r0 r& �skipr1 r/ r r r �reset_input_buffer� s zSerial.reset_input_bufferc C s | j s t� �| j�� dS )zs Clear output buffer, aborting the current output and discarding all that is in the buffer. N)r# r0 r' �flushr/ r r r �reset_output_buffer� s zSerial.reset_output_buffer� �?c C s | j s t� �| j �|d � dS )zHSend break condition. Timed, returns to idle state after given duration.g @�@N)r# r0 Z sendBreak)r( �durationr r r � send_break� s zSerial.send_breakc C s | j du rt� �td��dS )zBSet break: Controls TXD. When active, to transmitting is possible.Nz<The _update_break_state function is not implemented in java.)�fdr0 r r/ r r r �_update_break_state� s zSerial._update_break_statec C s | j s t� �| j �| j� dS )z)Set terminal status line: Request To SendN)r# r0 ZsetRTSZ _rts_stater/ r r r �_update_rts_state� s zSerial._update_rts_statec C s | j s t� �| j �| j� dS )z-Set terminal status line: Data Terminal ReadyN)r# r0 ZsetDTRZ _dtr_stater/ r r r �_update_dtr_state� s zSerial._update_dtr_statec C s | j s t� �| j �� dS )z(Read terminal status line: Clear To SendN)r# r0 ZisCTSr/ r r r �cts� s z Serial.ctsc C s | j s t� �| j �� dS )z)Read terminal status line: Data Set ReadyN)r# r0 ZisDSRr/ r r r �dsr� s z Serial.dsrc C s | j s t� �| j �� dS )z)Read terminal status line: Ring IndicatorN)r# r0 ZisRIr/ r r r �ri� s z Serial.ric C s | j s t� �| j �� dS )z)Read terminal status line: Carrier DetectN)r# r0 ZisCDr/ r r r �cd� s z Serial.cdN)r )rC )�__name__� __module__� __qualname__�__doc__r" r% r. �propertyr2 r6 r= r@ rB rE rG rH rI rJ rK rL rM r r r r r 7 s, 7 r N) � __future__r Zserial.serialutilr r r r Z SerialBaser r r r r �<module> s �
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