blob: 42c6593e8efdc97c1d42f817ae9f96b47af06442 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
|
-------------------------------------------------------------------------------
USB Power Delivery protocol
-------------------------------------------------------------------------------
This directory contains captures of data communication on the Control Channels
of Type-C USB connectors using the USB Power Delivery protocol.
Details:
http://www.usb.org/developers/powerdelivery/
Logic analyzer setup
--------------------
A 'Twinkie' USB type-C interposer was used to capture the communication
on the CCx pins:
Probe Signal
-----------------
CC1 Control Channel 1
CC2 Control Channel 2
The type-C connectors are reversible, so the actual communication might
happen on CC1 or CC2 depending the polarity of the plug inside the receptacle.
Data
----
Captured Between a Google Pixel 2015 laptop and both its 5V/12/V/20V power
supply and an USB-C to HDMI video dongle.
The sigrok command lines used were:
sigrok-cli -d chromium-twinkie --continuous -o power_supply_20V.sr
sigrok-cli -d chromium-twinkie --continuous -o hdmi_dongle.sr
|
