baroobob / tektronixafg3021b

Python module for controlling a Tektronix AFG3021B arbitrary function generator.

TektronixAFG3021B

This is a Python module for controlling a Tektronix function generator, model AFG3021B.

tektronixafg3021b's Issues

Could not configure port: (56, 'Invalid request code')

Hi,

I just cloned your repo and tried to open /dev/usbtmc0, where my Tektronix AFG3102 is attached,
but got the following error:

Traceback (most recent call last):
  File "./test.py", line 5, in 
    open_serial_port()
  File "TektronixAFG3021B.py", line 71, in open_serial_port
    ser.open()
  File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 282, in open
    self._reconfigurePort()
  File "/usr/lib/python2.7/dist-packages/serial/serialposix.py", line 311, in _reconfigurePort
    raise SerialException("Could not configure port: %s" % msg)
serial.serialutil.SerialException: Could not configure port: (56, 'Invalid request code')

The problem occurs in function open_serial_port, the relevant code segment is

...
    ser = serial.Serial()
    ser.port = serial_port
    ser.baudrate = 9600
    ser.bytesize = 8
    ser.parity = 'N'
    ser.stopbits = 1
    ser.timeout = None
    ser.xonxoff = 0
    ser.rtscts = 0
    ser.open()
    print ser.is_open()
...

I made minor changes, as you can see, but still can't see the problem.

Any idea, what went wrong?

Best, Matthias