User Manual

CDriver User Guide 18

i2ccl m

• from the GUI check the ”Monitor” box

• from Python issue:

i2c.monitor(True)

and to exit:

i2c.monitor(False)

• connect a terminal to the I

CDriver (at 1000000 8N1) and type the m char-

acter, then type any character to exit monitor mode

5.5 Capture mode

In capture mode, the I

CDriver does not write any data to the I

C bus. Instead

it monitors bus trafﬁc and transmits it via USB for recording on the PC.

5.5.1 Command line

There is a Python sample program that can be used to capture trafﬁc on the

command-line at capture.py.

Running it with the I

CDriver address as an argument puts the I

CDriver into

capture mode: the character in the top-left of the display changes from D to C.

$ python samples/capture.py /dev/ttyUSB0

Now capturing traffic to

standard output (human-readable)

log.csv

Hit CTRL-C to leave capture mode

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