CW Lite USB CDC not working

Embedded Security ChipWhisperer Hardware
1

I’ve updated the software on CW Lite to 5.6.0. but can’t see a serial port under Device Manager -> Ports. The driver in use is libwdi.

2

Hi,

  1. Make sure you’re on the latest firmware update
  2. If you are, go to Device Manager and uninstall and delete the current driver, then unplug and replug. You should now be able to see the serial port.

Alex

3

Thanks for the fast reply - it works!
Could you please let me know how to configure baud rate (CW to target) and on which pins is the UART-to-target connection?
I’d like to use the CW as a UART pass-through and send commands to my target from a serial terminal. I can now see the CW as COM17, and can connect to it, but when I send some data with Putty, I can’t see any activity on the TX pin.

4

Hi,

The FPGA needs to be configured in order for passthrough to work, so make sure you’re connected. You can control settings either via cw.target, or by setting scope.io.cdc_settings = 1 and by configuring the serial port in your serial terminal.

Alex