GUI for automatic generator voltage tunning based on oscilloscope (Agilent Technologies MSO9404A) readout.

1. Connect devices to PC.
2. Setup devices as describen in Configuring udev.
3. Startup the program.
4. Click either 'Connect' button.
5. Select devices.
   • If you encounter issues with this step try running script as root (not recomended).
6. After establishing connection buttons have new functions:
   • Button in 'Generator' panel toggles voltage tuner
   • Button in 'Oscilloscope' panel toggles data acquisistion.
7. (Optional) Save recorded data using save in toolbar menu.
8. Exit

The are limitations on transfer speeds beetween Oscilloscope and PC. Transfer time is an exponential function. Mostly linear below 200k samples.

Benchmarking was performed on computer with AMD Ryzen 7 3700X 8-Core Processor, so resoults may vary based on that. Record length is a quantity of points in a single acquisition.

If you cannot access your device without running your script as root follow the link: Python USBTMC Readme or are running it on Windows (untested).

https://stackoverflow.com/questions/50625363/usberror-errno-13-access-denied-insufficient-permissions

1. Replace 'idVendor' and 'idProduct' with values and run line to create usb- udev file:

sudo echo -e '# USBTMC instruments
# Agilent MSO7104
SUBSYSTEMS=="usb", ACTION=="add", ATTRS{idVendor}=="idVendor", ATTRS{idProduct}=="idProduct", GROUP="usbtmc", MODE="0666"
# Tektronix AFG3102
SUBSYSTEMS=="usb", ACTION=="add", ATTRS{idVendor}=="idVendor", ATTRS{idProduct}=="idProduct", GROUP="usbtmc", MODE="0660"
# Devices
KERNEL=="usbtmc/*",       MODE="0660", GROUP="usbtmc"
KERNEL=="usbtmc[0-9]*",   MODE="0660", GROUP="usbtmc"' >> /etc/udev/rules.d/usbtmc.rules

where the vendor and product ID must go in hex and without the "0x" or add products of a given vendor by omiting ATTRS{idProduct} part of rule definition.

2. Refresh udev

sudo udevadm control --reload-rules && sudo udevadm trigger

3. Disconnect and re-connect the USB device.

1. Turn oscilloscope on.
2. Turn generator on.
3. Make sure that both devices are plugged in to controller PC and can be detected using lsusb.
4. Run the script python main.py.

• matplotlib==3.9.2
• numba==0.60.0
• numpy==2.1.0
• python_ivi==0.14.9
• python_usbtmc==0.8
• samplerate==0.2.1

• Tkinter 8.6.12