Discussions on Python software that powers the ChipWhisperer system
#1585 by fuzzer
Wed Sep 13, 2017 1:26 pm
I don't care about power capture with ADC and just want to generate glitches at different Ext Trigger Offset with glitch explorer. If I set the Glitch Trigger type to Ext Trigger:Single/Continous I see "WARNING:Timeout in OpenADC capture(), trigger FORCED" messages and the glitch explorer won't step to next offset. If I set Glitch Trigger to Manual then explorer does the stepping but then the glitches are not at the right offset but stay fixed. Anyone has any idea?
#1598 by ExMachina
Tue Sep 19, 2017 10:00 am
Hi,

It indeed looks like that if the trigger fails the value is not increased. From here I guess you either need to dive into the code or perhaps do the glitching in a small python script (set value , glitch,set value etc)

Have a look at software/chipwhisperer/tests/glitchscript.py and perhaps remove starting around line 130 and replace with a loop? calling things like self.api.setParameter(['Glitch Module', 'Glitch Offset (as % of period)',-3.5])?

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