Note: Sending the +IPR command to the device does not affect the physical serial port, you must use this function to set the speed of the port when using the Python engine.
This command sets the serial port TXD/RXD speed. The default serial port TXD/RXD speed is 115200.
The first input parameter speed is a Python string which is the value of the serial port speed. It can assume values in the range from '300' to '115200'.
The second optional parameter <char format> is a Python string that represents the character format to be used:
the first character is the number of bits per char (7 or 8), then the parity setting (N - none, E- even, O- odd) and in the end the number of stop bits (1 or 2). The default value is "8N1". For version 18.11.004 only "8N1" value is available
The third optional parameter <flow control> is only available from version 12.00.xx4, version 13.00.xx5 and version 18.11.004 and is a Python string that represents the flow control mode to be used:
"none" set no flow control enabled,
"hw" set hardware flow control enabled.
The default value is "none".
The return value is a Python integer which is -1 if an error occurred otherwise is 1.
Example:
b = SER.set_speed('9600')
sets the serial port USIF0 speed to 9600, assigning the return value to b.
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Note: Sending the +IPR command to the device does not affect the physical serial port, you must use this function to set the speed of the port when using the Python engine. |