This is an unofficial Python package to interface with Teledyne LeCroy oscilloscopes and read binary trace
files (*.trc).
The parsing of trc files is based on
the lecroy-reader
project.
The features of this package are based on my needs at the time of writing. I have done very limited testing, using a single oscilloscope and a few trace files.
If you use this package, it is very possible you find a bug or some oversight. You are encouraged to make a pull request or to create an issue to report a bug, to request additional features or to suggest improvements.
Installation via pip is supported.
To install the latest published version, run:
pip install lecroyscopeTo install the package from source, including test dependencies, clone the repository and run:
pip install .[test]from lecroyscope import Trace
trace = Trace("path/to/trace.trc")Trace file header information can be accessed via the header attribute:
header = trace.header
# properties can be accessed directly
print("Instrument name: ", header.instrument_name)
# or as python dict
print("Instrument name: ", header["instrument_name"])
# header can also be converted into a python dict
header_dict = dict(header)
print("Header keys: ", list(header_dict.keys()))The trace data can be accessed via the time(x) and voltage(y) attributes:
# time values
time = trace.time # trace.x is an alias for trace.time
# channel voltage values
voltage = trace.voltage # trace.y is an alias for trace.voltageimport lecroyscope
scope = lecroyscope.Scope("192.168.1.10") # IP address of the scope
# print some info
print(f"Scope ID: {scope.id}")
# change to "Sequence" mode with 200 segments
scope.sample_mode = "Sequence"
scope.num_segments = 200
print(f"Sample mode: '{scope.sample_mode}' with {scope.num_segments} segments")
# acquire data with a single trigger, timout (fail) after 60 seconds
scope.acquire(timeout=60)
# Read channel 2 and 3 traces
# The data in the scope won't change until next acquisition
trace_channel2: lecroyscope.Trace = scope.read(2)
trace_channel3: lecroyscope.Trace = scope.read(3)
# Alternatively, it is recommended to use the TraceGroup class for reading multiple channels from the same trigger
trace_group: lecroyscope.TraceGroup = scope.read(2, 3)
trace_channel2 = trace_group[2]
trace_channel3 = trace_group[3]
time = trace_group.time # time values are the same for all traces
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