Timeline for Can Type-C device be configured as "Sourcing Device" without Power Delivery protocol?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Feb 14, 2018 at 10:13 | comment | added | Jon | +1 This is correct. I spent a lot of time looking into doing this for a project, and it cannot be done without PD support. It is annoying because the Micro-USB port does support such a scheme with a simple resistor. PD is not that complicated (well, relative to other things USB), but there is still very little support for it in available uCs and stand alone chips. | |
| Feb 13, 2018 at 20:39 | comment | added | Ale..chenski | @transfer1992, you probably should re-phrase the title of your question to have wider exposure, something like "Can Type-C device be configured as "Sourcing Device" without Power Delivery protocol?", or something like that. | |
| Feb 13, 2018 at 12:59 | comment | added | transfer1992 | Ok, so after more research I can confirm, that this answer is correct, you can achieve Sourcing Device and Sinking Host only using USB PD. USB Type-C State-Machine-Based Role Swapping (the method that utilises only pulling resistors at connection) is described (misleadingly) as power/data role swapping mechanism, but in fact it is limited to only two final states: either Sourcing host or Sinking device (taken from USB Type-C Specification Release 1.3, 4.5.1.4.1). | |
| Feb 6, 2018 at 13:00 | vote | accept | transfer1992 | ||
| Feb 6, 2018 at 12:59 | comment | added | transfer1992 | Actually I meant power delivery swap, as my device will not be able to act as a host, it can only be sourcing device, as you explained. Nevertheless thank you, you helped me a lot. | |
| Feb 6, 2018 at 4:19 | history | answered | Ale..chenski | CC BY-SA 3.0 |