5 ms·

Out of interest, what logic analyzer/logic analyzer software is the author using?

c0wb0yc0d3r 4y ago
Looks like sigrok[0]. From the screenshots, the logic analyzer looks similar to a saleae clone. [0]:https://sigrok.org/wiki/Main_Page https://sigrok.org/wiki/Main_Page
- unwind 4y ago
  ... and if you're not aware, Saleae clones are widely available on e.g. Amazon, prices before shipping seem to start around $7 in the US. This is possible since the original Saleae is basically just a CY7C68013A [1] in a box, and once others realized that cloning it was not difficult. No idea about patents and so on here, obviously it's not OK for clones to use Saleae's firmware without licensing it. I have one, it worked fine and is of course highly recommended since the combination of a cheap way to get signals into the computer and Sigrok's protocol analyzers makes things really neat. [1]: https://www.infineon.com/cms/en/product/universal-serial-bus/usb-2.0-peripheral-controllers/ez-usb-fx2lp-usb-2.0-peripheral-controller/cy7c68013a-56ltxc https://www.infineon.com/cms/en/product/universal-serial-bus...
  - retSava 4y ago
    I had a clone once upon a time, together with several Saleaes and have recommended them to many many people, and that clone was not accurate to me. While the chip and the firmware was probably exactly the same as the original one, the rest of the hardware was cost minimized and did not work as well. I compared. The clone must have had capacitive coupling or something, since signals was often slightly delayed in unpredictable ways. Eg, a bit here and there could be shifted early or late, which is kind of bad when you work on protocols or timing.
    - deleted 4y ago
      [deleted]
redfast00 4y ago
(author here) this is indeed a Salea clone (one of the first results when searching for 'logic analyzer' on Aliexpress), with pulseview/sigrok as software. I try to use cheap tools if possible, so it's more accessible for other people to reproduce.

Looks like sigrok[0]. From the screenshots, the logic analyzer looks similar to a saleae clone. [0]:https://sigrok.org/wiki/Main_Page https://sigrok.org/wiki/Main_Page

unwind 4y ago
... and if you're not aware, Saleae clones are widely available on e.g. Amazon, prices before shipping seem to start around $7 in the US. This is possible since the original Saleae is basically just a CY7C68013A [1] in a box, and once others realized that cloning it was not difficult. No idea about patents and so on here, obviously it's not OK for clones to use Saleae's firmware without licensing it. I have one, it worked fine and is of course highly recommended since the combination of a cheap way to get signals into the computer and Sigrok's protocol analyzers makes things really neat. [1]: https://www.infineon.com/cms/en/product/universal-serial-bus/usb-2.0-peripheral-controllers/ez-usb-fx2lp-usb-2.0-peripheral-controller/cy7c68013a-56ltxc https://www.infineon.com/cms/en/product/universal-serial-bus...
- retSava 4y ago
  I had a clone once upon a time, together with several Saleaes and have recommended them to many many people, and that clone was not accurate to me. While the chip and the firmware was probably exactly the same as the original one, the rest of the hardware was cost minimized and did not work as well. I compared. The clone must have had capacitive coupling or something, since signals was often slightly delayed in unpredictable ways. Eg, a bit here and there could be shifted early or late, which is kind of bad when you work on protocols or timing.
  - deleted 4y ago
    [deleted]

redfast00 4y ago

(author here) this is indeed a Salea clone (one of the first results when searching for 'logic analyzer' on Aliexpress), with pulseview/sigrok as software. I try to use cheap tools if possible, so it's more accessible for other people to reproduce.