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This version (14 Dec 2020 10:17) was approved by Venkatesan Krishnamoorthy.The Previously approved version (17 Aug 2020 18:31) is available.Diff

Table of Contents

Click here to return to 'SigmaStudio Scripting' page.

SigmaStudio Scripting from Python

There are two ways the SigmaStudio server APIs can be accessed from Python.

Accessing SigmaStudio through win32com

To set up the COM ports for SigmaStudio 4.0:

  1. Open an elevated command prompt. Change directory to C:\Windows\Microsoft .NET\Framework64\v4.0.30139.
  2. Run the following command: RegAsm “C:\Program Files\Analog Devices\SigmaStudio 4.0\Analog.SigmaStudioServer.dll” /codebase and the command prompt should return “Types registered successfuly”.
  3. Now switch directory to the 32-bit version at C:\Windows\Microsoft .NET\Framework64\v4.0.30139.
  4. Run the same command (RegAsm “C:\Program Files\Analog Devices\SigmaStudio 4.0\Analog.SigmaStudioServer.dll” /codebase). The command prompt should again return “Types registered successfuly”.


Launch SigmaStudio before running your client [Python or LabView/Matlab]. Most clients assume the SigmaStudio endpoint is available. The corresponding error in Python is There was no endpoint listening at net.pipe//localhost/SigmaServerPipe
Use win32com of version 300 to access SigmaStudio Server API's from python


sample.py
from  win32com.client.dynamic import Dispatch
## This program is designed to test SigmaStudio scripting from Python. 
if __name__ == "__main__":     
    print('Running')
    server = Dispatch('Analog.SigmaStudioServer.SigmaStudioServer')
    # Make a new SigmaStudio project            
    print('Creating Project...')
    server.new_project
 
    # Hardware Configuration
    print('Inserting HW Config Objects...')
    server.insert_object_point('USBi', 200, 100)
    server.insert_object_point('ADAU1467', 400, 100)
    server.insert_object_point('E2Prom', 400, 180)
    server.connect_object('USB Interface', 0, 'IC 1', 0)
    server.connect_object('USB Interface', 1, 'IC 2', 0)
    # Insert some objects
    print('Inserting Schematic Objects...')
    server.insert_object_point('Sine Tone with Phase and Gain', 50, 100)
    server.insert_object_point('Sine Tone with Phase and Gain', 50, 200)
    server.insert_object_point('Output', 170, 100)
    server.insert_object_point('Output', 170, 200)
    # Change object parameters
    print('Changing Parameters...')
    server.set_object_property('setName', 'Tone1', 'sineWave1', 0, 0, 0)
    server.set_object_property('setName', 'Tone2', 'sineWave2', 0, 0, 0)
    server.set_object_property('setControlValue', 'sineWave1', 0, 0, 'Frequency', '300')
    server.set_object_property('setControlValue', 'sineWave2', 0, 0, 'Frequency', '150')
    server.set_object_property('setControlValue', 'sineWave1', 0, 1, 'Gain', '-40')
    server.set_object_property('setControlValue', 'sineWave2', 0, 1, 'Gain', '-40')
    server.set_object_property('setControlValue', 'sineWave2', 0, 1, 'OnOff', 1)
    server.set_object_property('setControlValue', 'sineWave1', 0, 1, 'OnOff', 1)
    server.set_object_property('setControlValue', 'Output1', 0, 0, 'SelectedChannel', '4')
    # Indexing here works based on the SigmaStudio GUI; so the fourth index is now channel 5
    server.set_object_property('setControlValue', 'Output2', 0, 0, 'SelectedChannel', '4')
 
    # # Connect objects
    server.connect_object('sineWave1', 0, 'Output1', 0)
    server.connect_object('sineWave2', 0, 'Output2', 0)
    # # Compile and download the project to the DSP
    server.compile_project    
    # Turn on output 2    
    server.register_write('IC 1', 62021, 2, 48)    
    # Save project with specific name    
    projectFile= 'C:\\test\\Scripting Test'    
    server.saveas_project(projectFile)
 


Register Write

The following code shows how to perform a register write of any length. Only the first three lines need be modified. 

data = [0x12, 0x01, 0x10, 0x90, 0xc1, 0x20, 0x4c, 0x1d]
address = 0x20
ic_name = "IC 1"
 
ic_name_variant = VARIANT(pythoncom.VT_BSTR, )
address_variant = VARIANT(pythoncom.VT_I4, address)
num_bytes_variant = VARIANT(pythoncom.VT_I4, len(data))
data_variant = VARIANT(pythoncom.VT_ARRAY | pythoncom.VT_UI1, data)
server.REGISTER_WRITE_ARRAY(ic_name_variant, address_variant, num_bytes_variant, data_variant)

FIR Filter

Example code to interface with FIR Filters is available at FIR Filter.

Using ActivePython to access the server APIs

Perform the following steps to access SigmaStudio server scripts using ActivePython.

Environment setup

1. Install ActivePython (version 2.7.2 for Python 2.7)
2. Install PythonNet (version 2.0 for Python 2.7)
3. Set PYTHONPATH=SIGMASTUDIO_INSTALLED_FOLDER
4. Launch python.exe from ‘C:\Python27\pythonnet’.

Create a SigmaStudioServer instance and run APIs via it

import clr
clr.AddReference('Analog.SigmaStudioServer')
from Analog.SigmaStudioServer import SigmaStudioServer
server=SigmaStudioServer()
server.OPEN_PROJECT(r‘C: \Work\schematics\Example_schematic.dspproj’)
resources/tools-software/sigmastudio/usingsigmastudio/scripting/python.txt · Last modified: 30 Nov 2020 05:49 by Sanjeeva Reddy

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