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The EU is enforcing USB-C on portable devices

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tooki:

--- Quote from: Monkeh on June 13, 2022, 04:25:54 am ---Perhaps you would share with the class rather than jabbing that it's easily found.

--- End quote ---
For me, googling "usb pd specification 1.0" brought this up on the first page of results:
https://caxapa.ru/thumbs/342141/USB_PD_V1_0-20120705-final.pdf

tooki:
Also, I found this while searching, and found it interesting and think you might, too: https://microchipsupport.force.com/s/article/Why-UPD1001-UPD1002-are-not-recommended-for-new-designs-2


--- Quote ---Why UPD1001/UPD1002 are not recommended for new designs
Nov 27, 2017

Problem Description:
Microchip launched components UPD1001 and UPD1002 which claim USB Power Delivery support but these products should generally not be used for development of new products due to their obsolescence.


Solution:
UPD1001 and UPD1002 were developed and released in accordance to the USB Power Delivery specification revision 1.0. USB Power Delivery 1.0 defined a methodology to implement serial packet messaging via AC-coupled signaling upon the VBUS conductor on USB Type-A and USB Type-B cables, for the purpose of careful negotiation of power up to 100W (including raising VBUS voltage up to 20V). This methodology also required the utility of new USB Type-A and USB Type-B cables and interconnects.
 
However, the USB Type-C specification was released shortly after the first USB Power Delivery 1.0 controller products were launched, and USB Power Delivery 1.0 is not supported on USB Type-C. A new USB Power Delivery revision 2.0 specification was created in order to support the USB Type-C cable/connectors which entirely changed the physical layer of the standard and made USB Power Delivery 1.0 products obsolete.
 
While USB Power Delivery 1.0 controllers can still be found available to purchase, these should not be used for development of new products because the USB Type-A/B cables and connectors which are required to support USB Power Delivery 1.0 are no longer available for purchase, and there is no capacity to interoperate with USB Type-C or USB Power Delivery 2.0 products on the market.
--- End quote ---

So while it remains true that USB PD was originally envisioned to run on (modified) legacy USB connectors, the fact that it was such a fleeting and obscure thing explains why I assumed it was always USB-C-only.

Someone:

--- Quote from: tooki on June 13, 2022, 10:57:49 am ---
--- Quote from: Monkeh on June 13, 2022, 04:25:54 am ---Perhaps you would share with the class rather than jabbing that it's easily found.

--- End quote ---
For me, googling "usb pd specification 1.0" brought this up on the first page of results:
https://caxapa.ru/thumbs/342141/USB_PD_V1_0-20120705-final.pdf

--- End quote ---
Also usb-if:
https://www.usb.org/document-library/usb-power-delivery

tooki:
Right, but that’s for the current PD standard. The issue was finding V1.0, which is no longer on the USB-IF site.

Monkeh:

--- Quote from: tooki on June 13, 2022, 10:57:49 am ---
--- Quote from: Monkeh on June 13, 2022, 04:25:54 am ---Perhaps you would share with the class rather than jabbing that it's easily found.

--- End quote ---
For me, googling "usb pd specification 1.0" brought this up on the first page of results:
https://caxapa.ru/thumbs/342141/USB_PD_V1_0-20120705-final.pdf

--- End quote ---

Thank you - Google being Google that did not appear in ten pages of results of very similar search terms.

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