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Diffstat (limited to 'usb_power_delivery/macbook_2015/README')
| -rw-r--r-- | usb_power_delivery/macbook_2015/README | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/usb_power_delivery/macbook_2015/README b/usb_power_delivery/macbook_2015/README new file mode 100644 index 0000000..2655453 --- /dev/null +++ b/usb_power_delivery/macbook_2015/README @@ -0,0 +1,36 @@ +------------------------------------------------------------------------------- +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 an Apple Macbook 2015 (with a USB type-C connector) and both +its 5V/14.8V power supply and an Apple USB-C to HDMI AV accessory. + +The sigrok command lines used were: + + sigrok-cli -d chromium-twinkie --continuous -o apple_power_brick.sr + sigrok-cli -d chromium-twinkie --continuous -o apple_av_hdmi.sr + |