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76f9113a JG |
1 | ------------------------------------------------------------------------------- |
2 | Qi charger protocol | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | This directory contains captures of data communication from Qi receivers to | |
6 | Qi transmitters. | |
7 | ||
8 | Details: | |
9 | http://www.wirelesspowerconsortium.com/developers/specification.html | |
10 | ||
11 | ||
12 | Logic analyzer setup | |
13 | -------------------- | |
14 | ||
15 | The logic analyzer used was a Saelae Logic clone (at 250kHz): | |
16 | ||
17 | Probe Signal | |
18 | ----------------- | |
19 | 0 (black) Qi demodulated data signal | |
20 | ||
21 | ||
22 | Data | |
23 | ---- | |
24 | ||
25 | Captured from a noname Qi receiver for Samsung 5. | |
26 | ||
27 | The sigrok command line used was: | |
28 | ||
29 | sigrok-cli --time 4s -d fx2lafw --config samplerate=250k \ | |
30 | --channels 0 -o noname-samsung5.sr | |
31 |