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1 | ------------------------------------------------------------------------------- |
2 | TrekStor eBook Reader 3.0 I2C | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
5 | This is an example capture of the I2C traffic on a TrekStor eBook Reader 3.0 | |
6 | EBR30-a (Weltbild + Hugendubel Edition) device. | |
7 | ||
8 | For details on the device see: | |
9 | ||
10 | http://randomprojects.org/wiki/TrekStor_eBook_Reader_3.0_EBR30-a_(Weltbild_%2B_Hugendubel_Edition) | |
11 | ||
12 | There are three chips which are connected to the main CPU's SCL/SDA pins. | |
13 | So far, it's unknown which device is responsible for which I2C output. | |
14 | ||
15 | ||
16 | Logic analyzer setup | |
17 | -------------------- | |
18 | ||
19 | The logic analyzer used for capturing is a ChronoVu LA8 at a sample rate | |
20 | of 4MHz. | |
21 | ||
22 | The ChronoVu LA8 probes were connected to the I2C pins like this: | |
23 | ||
24 | Probe I2C pin | |
25 | ------------------- | |
26 | 1 (orange) SCL | |
27 | 7 (yellow) SDA | |
28 | GND GND | |
29 | ||
30 | ||
31 | Data | |
32 | ---- | |
33 | ||
34 | The sigrok command line used was: | |
35 | ||
36 | sigrok-cli -d 0:samplerate=4mhz --samples 8388608 \ | |
37 | -p '2=SCL,8=SDA' -o trekstor_ebr30_a_i2c_0x15.sr | |
38 |