adinstruments_sdk_python

Use this code to read .adicht (Labchart) files into Python. Interfacing with the ADIstruments DLL is done via cffi.

The code utilizes the SDK from ADIstruments to read files in Python as NumPy arrays.
Currently only works for Windows.
A slightly more flushed out Matlab version can be found here.

Installation

pip install adi-reader

Test code

    import adi
    f = adi.read_file(r'C:\Users\RNEL\Desktop\test\test_file.adicht')
    # All id numbering is 1 based, first channel, first block
    # When indexing in Python we need to shift by 1 for 0 based indexing
    # Functions however respect the 1 based notation ...
    
    # These may vary for your file ...
    channel_id = 2
    record_id = 1
    data = f.channels[channel_id-1].get_data(record_id)
    import matplotlib.pyplot as plt
    plt.plot(data)
    plt.show()

Dependencies

cffi
NumPy
Python 3.6-3.9

Setup for other Python versions

Running the code might require compiling the cffi code depending on your Python version.
This requires running cffi_build.py in the adi package.
This might require installing cffi as well as some version of Visual Studio.
The currently released code was compiled for Python 3.6-3.9 on Visual Studio 14.0 or greater was required.

For upgrading to 3.8, I installed Python 3.8. Within the interpreter I ran the following:

Jim note to self, rather than installing Anaconda I simply:
- download Python from https://www.python.org/downloads/windows/
- cd to Python directory or run directly, these go to something like: C:\Users\RNEL\AppData\Local\Programs\Python\Python39-32\python
- Note the above path is specific to my computer, might need to change user name

import subprocess
import sys

#https://stackoverflow.com/questions/12332975/installing-python-module-within-code
def install(package):
    subprocess.call([sys.executable, "-m", "pip", "install", package])
	
install("cffi")

import os
#This would need to be changed based on where you keep the code
os.chdir('G:/repos/python/adinstruments_sdk_python/adi')

# For 64 bit windows
exec(open("cffi_build.py").read())

# For 32 bit windows
exec(open("cffi_build_win32.py").read())

Improvements