Chipwhisperer GPIO Input as success instead of UART


#1

Pretty simple question - is it possible to check the state of a CW input (e.g. tio3) to assess a successful glitch rather than reading serial input?

scope.io.tio3 yields whatever it is set to rather than its actual state.

I could use a scope trigger, but I was hoping the API supported it.

Cheers,
-r


#2

Hi,

Unfortunately, the ChipWhisperer doesn’t currently support this. A workaround you may want to consider is setting the trigger to be "tio3 OR tio4". You can then use a short pulse on TIO4 to trigger and use TIO3 to determine a successful glitch.

Alex


#3

That’s what it looked like from the docs. Thanks!

-r