excmdint

excmdint

Example for the command interpreter.

Introduction

This is an example Python application, using the python library libosplink to communicate with the OSPlink firmware in the ESP32S3. It only uses the basic command interpreter, not the commands of OSPlink.

libosplink is still experimental.

File architecture

This application uses the following support files

• setup.bat first file to run, sets up a virtual Python environment. You might need to tweak the line that sets the LOCATION of the python executable.
• requirements.txt is used by setup.bat to install packages. In this case, the file contains the serial port library and the libosplink.
• run.bat actually runs excmdint.py.
• excmdint.py the script started by run.bat.
• clean.bat deletes the virtual environment.
• readme.md this file.

Configuration

• Make sure the (ESP on the) OSP32 board is flashed with the osplink.ino sketch.

• Connect an OSP chain to the OSP32 board (eg SAIDbasic in BiDir).

• Connect the OSP32 board to the PC.

• Open a cmd in OSP_aocmd\python\excmdint.

• Run setup.bat (check the line SET LOCATION=C:\programs\python311\).

Run

Once the project is configured, run the python app. We do this via the run.bat. Make sure Arduino IDE (or any other app to blocks the COM port) is not running.

scanning for COM ports...
found ['COM7']
opening COM7

exec('echo line Hello, world!')
-> Hello, world!

exec('echo faults')
-> echo: faults: 0

logging
see __cmdint.log
Done

Run OSP_aocmd\python\cleanall.bat to remove all generated files.

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