doc: document v0 results

usb-ac_cable_tester usb-ac_cable_tester_v0
King Kévin 2022-06-17 19:13:55 +02:00
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v0
==
first prototype build.
it works, but almost only on specification compliant cables:
- some cables don't have all 4 GND and VBUS pins in the C plug
- normally the shield should connect both shells AND be tied to ground on BOTH ends, but I've seen ALL possible combinations thereof