Extremely small number of postsamples?

[chupacabras]

I see that I can set 393214 as maximum number of postsamples in capture settings.
It seems extremely small number. It's 3ms of sampled time for 100MHz sampling rate.

How to capture tens of seconds of activity?
I'm used to Saleae Logic Analyzer 24MHz where I can capture lot of activity (tens of seconds, minutes, it feels like infinite).

I usually use it for debugging some communication between MCU and peripherals and I need to capture activity that is much further away than just 3ms.

[sparkybrit]

Yup, I ran into the same limitation too.

I too am used to the 16-channel Saleae which is a great piece of kit. The problem with the Saleae is that you can't daisy-chain them. I got 5 of these Gusmans to try out the daisy-chaning which looked great on YouTube.

I think the Saleae STREAMs the samples over the USB to the host in real time whereas I get the impression that the Gusman stores the samples in the Pico on-board RAM. That's never going to be enough samples for anything other than trivial low frequency devices under test.

Am I just using the Gusman incorrectly?