Timing a trigger on ChipWhisperer Nano

Embedded Security ChipWhisperer Software
1

I’m using a ChipWhisperer Nano. Is there a way to measure how long the trigger takes to fall after the rising edge, either built in or by directly writing/reading to USB? The documentation seems to say that the trigger can only be used with the rising edge to take a fixed number of samples.

trigger_high();
// measure the time this code takes
trigger_low();
2

On all other ChipWhisperer capture hardware, you can use scope.adc.trig_count to learn this (see How long is the target operation? — ChipWhisperer Documentation ).

Unfortunately, the Nano does not support this feature. Your best bet is to measure it with some other logic analyzer or oscilloscope.