Initializing ChipWhisperer Lite for first time

1

Hello!

I am attempting to set up my ChipWhisperer lite for the first time.

I’ve run through the installation steps and installed all prerequisite packages. When I try to import CW with bash I get the following print:

Traceback (most recent call last):
File “”, line 1, in
File “c:\chipwhisperer\software\chipwhisperer_init_.py”, line 15, in
from chipwhisperer.capture import scopes, targets
File “c:\chipwhisperer\software\chipwhisperer\capture\scopes_init_.py”, line 15, in
from chipwhisperer.capture.scopes.OpenADC import OpenADC
File “c:\chipwhisperer\software\chipwhisperer\capture\scopes\OpenADC.py”, line 29, in
from usb import USBError
ModuleNotFoundError: No module named ‘usb’

I cannot for the life of me figure out what that means. I have updated the drivers and added everything to PATH. The CW is connected and recognized.

Mu OS is Windows 10.

2

Hi,

USB here is PyUSB, which should be installed during the pip install -r requirements.txt step in the installation. Try running pip install pyusb.

Alex

3

Hi Alex,
I installed pyusb (1.0.2) during initial installation, and just re-verified. Output is showing requirement is already satisfied.

Is there another usb module out there somewhere that maybe Im missing? I couldn’t find it anywhere in the online documentation or in any of the text files from the downloads.

Paul

4

Hi Paul,

usb is definitely PyUSB here. If you try to import usb yourself, are you able to? Also maybe try installing with/without the --user flag with pip?

Alex