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Commit | Line | Data |
---|---|---|
994d23cb JS |
1 | ------------------------------------------------------------------------------- |
2 | Arbitrary CEC bus traffic | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | These captures contain the typical command exchange between 2 CEC capable | |
6 | devices. In this case a Sony TV and 2 different amplifiers were used. | |
7 | ||
8 | The captures were taken connecting the TV and one of the amplifiers to later on | |
9 | switch the TV off and back on while dumping traffic on the CEC bus. | |
10 | ||
11 | The power OFF and power ON sequence can be seen in the captures with the | |
12 | 2 different amplifiers (Yamaha / Denon). | |
13 | ||
14 | Another spare capture was performed connecting one amplifier to the ARC input | |
15 | of the TV. | |
16 | ||
17 | ||
18 | Logic analyzer setup | |
19 | -------------------- | |
20 | ||
21 | The captures were taken using a Saleae Logic (fx2lafw), sampling at a rate of | |
22 | 1MHz. Channel 3 of the analyzer is used for the CEC bus traffic. | |
23 | ||
24 | Probe HDMI connector | |
25 | -------------------------- | |
26 | 3 Pin 13 (CEC) | |
27 | ||
28 | ||
29 | Data | |
30 | ---- | |
31 | ||
32 | Command line used was: | |
33 | ||
34 | $ sigrok-cli -d fx2lafw -c samplerate=1m -o dump.sr -C D3=CEC --time 15000 | |
35 | ||
36 | - tv_sony_amp_denon_switch_off_seq.sr | |
37 | Sony TV connected to a Denon amplifier: TV is switched off from remote. | |
38 | ||
39 | - tv_sony_amp_denon_switch_on_seq.sr | |
40 | Sony TV connected to a Denon amplifier: TV is switched on from remote. | |
41 | ||
42 | - tv_sony_amp_yamaha_switch_off_seq.sr | |
43 | Sony TV connected to a Denon amplifier: TV is switched off from remote. | |
44 | ||
45 | - tv_sony_amp_yamaha_switch_on_seq.sr | |
46 | Sony TV connected to a Yamaha amplifier: TV is switched on from remote. | |
47 | ||
48 | - tv_sony_amp_yamaha_arc_handshake.sr | |
49 | Sony TV connected to a Yamaha amplifier via TV ARC input. |