# Tutorial about logical analyzer

**URL:** <https://discuss.saleae.com/t/tutorial-about-logical-analyzer/3451>\
**Category:** Logic 2 Software\
**Created:** [June 26, 2025, 7:52am UTC](https://discuss.saleae.com/t/tutorial-about-logical-analyzer/3451 "2025-06-26T07:52:47Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![BitBob](https://yyz2.discourse-cdn.com/flex030/user_avatar/discuss.saleae.com/bitbob/32/2292_2.png) [@BitBob](https://discuss.saleae.com/u/BitBob)\
**Post date:** [June 27, 2025, 2:29pm UTC](https://discuss.saleae.com/t/tutorial-about-logical-analyzer/3451/6 "2025-06-27T14:29:52Z")

</div>

The Saleae hardware doesn’t have an internal buffer; all of the data while ‘running’ (or ‘playing’) must go to PC software to be processed. As far as I know, you don’t do any triggering in hardware on the device, it is all done in software. So, you must stream it all just to decide when to trigger.

It is not a hardware oscilloscope with any significant device memory buffering, it is a USB logic analyzer that uses PC/host resources to work (buffer, trigger, display).

All that being said, I think you can use the ‘trigger view’ capture mode to get the UI behavior you want.

Note: You may need to use a work-around, depending on exactly how you want it to behave, see:

> [@Saleae Normal Trigger Mode](https://discuss.saleae.com/t/saleae-normal-trigger-mode/3413):
>
> I recently got a new Saleae Logic 8 and I’m super pleased with it. The only slight disappointment was there was no way to replicate the repeated “Normal” trigger mode that you get on all oscilloscopes. I find this mode very useful for a range of situations, and judging from existing forum posts and feature requests I’m not the only one. The “Trigger View” mode comes very close to what I’m looking for, but I often want to just be able to repeatedly trigger on an edge rather than a protocol word. …

… and:

[![](https://img.youtube.com/vi/VVu-2U9KXYE/maxresdefault.jpg "Saleae Logic Analyzer - "Normal" trigger mode workaround") ](https://www.youtube.com/watch?v=VVu-2U9KXYE)

Until Saleae implements the feature requested (feel free to ‘up-vote’ it, if you’d like native support for this):

> **[Repeated trigger capture - Logic 2 - Ideas and Feature Requests - Saleae](https://ideas.saleae.com/b/feature-requests/repeated-trigger-capture/)**
>
> Similar to the "normal" trigger mode of an oscilloscope, it would be useful if Logic could be set capture an amount of time around a trigger event, and then re-arm the trigger and do it continually. Logic could save each trigger to a file automati

---

_[View the full topic](https://discuss.saleae.com/t/tutorial-about-logical-analyzer/3451)._
