CW1200 reports it's glitching, but it's not

1

This post is a heads up.
With the newest CW1200 FW (released september 2020) I’ve been able to get the CW1200 into a state where it reports it’s armed, triggered and the glitch counter is counting, but no glitch voltage glitch in ‘enable_only’ is occuring.

I’m not sure if I can reproduce this issue/take the time to investigate.
Fix for me was to roll back the FW to previous release, and install and old chipwhisperer python version (v=5.1.3) works for me.

Setup when failing:
CW1200
Clkgen output on HS2
Reading I/O state on tio1-4
Trigger glitch on rising edge tio4
CW python 5.3 (newest from pip first week of September 2020)

2

Hi,

Thanks for reporting this. This is the first firmware update in a long time, so there might be some things we missed with it. I’ll try to see if we can reproduce the issue.

Alex

3

Hi, getting to this now.

I’m having trouble replicating. In the situation you describe, are you expecting to see a glitch output? Is the scope timing out?

Alex