USB PD - CC decoding adventures

RE: USB PD - CC decoding adventures

ucontrollerpal — Thu, 29 Jun 2023 15:53:16 GMT

Did you use a Tek application module for this screen?

RE: USB PD - CC decoding adventures

ucontrollerpal — Thu, 29 Jun 2023 15:39:50 GMT

Hi, which trigger did you use on the Tek MSO2024B?

RE: USB PD - CC decoding adventures

ucontrollerpal — Thu, 29 Jun 2023 09:48:36 GMT

Hi, which Tektronix scope model had been used?

RE: USB PD - CC decoding adventures

DAB — Fri, 23 Dec 2022 19:51:51 GMT

Nice solution.

RE: USB PD - CC decoding adventures

michaelkellett — Fri, 23 Dec 2022 12:21:26 GMT

Great stuff. Could you complete the picture with a link to or a picture of your generic 24MHz analyser.

Thanks.

RE: USB PD - CC decoding adventures

baldengineer — Fri, 23 Dec 2022 03:28:31 GMT

Thanks for the detailed write-up. Somehow I missed that the CC signal was bi-directional and such low-voltage logic. Now that you have the comparator working for the logic “translation” is there any reason to go back to an amplifier design (once you have a fast enough one)?

RE: USB PD - CC decoding adventures

shabaz — Thu, 22 Dec 2022 20:25:53 GMT

Hi Wolfgang,

This is a very useful blog! It's awesome seeing the communication. I had no idea Sigrok had a decoder for it.

Thanks for sharing how you interfaced to it, and the screenshots of the message contents.