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1 | ------------------------------------------------------------------------------- |
2 | TrekStor eBook Reader 3.0 I2C | |
3 | ------------------------------------------------------------------------------- | |
4 | ||
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5 | This is a set of example captures of the I2C traffic on a TrekStor eBook |
6 | Reader 3.0 EBR30-a (Weltbild + Hugendubel Edition) device. | |
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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 | ||
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16 | trekstor_ebr30_a_i2c_0x15.sr |
17 | ---------------------------- | |
f9eb559c | 18 | |
d9146492 | 19 | The logic analyzer used for capturing was a ChronoVu LA8: |
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20 | |
21 | Probe I2C pin | |
22 | ------------------- | |
23 | 1 (orange) SCL | |
24 | 7 (yellow) SDA | |
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25 | |
26 | The sigrok command line used was: | |
27 | ||
28 | sigrok-cli -d 0:samplerate=4mhz --samples 8388608 \ | |
29 | -p '2=SCL,8=SDA' -o trekstor_ebr30_a_i2c_0x15.sr | |
30 | ||
d9146492 | 31 | |
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32 | trekstor_ebr30_a_i2c_30s.sr and trekstor_ebr30_a_i2c_120s.sr |
33 | ------------------------------------------------------------ | |
d9146492 | 34 | |
c7892931 | 35 | This is a 30s/120s dump of the I2C traffic while the device was attached |
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36 | to USB. |
37 | ||
38 | The logic analyzer used for capturing was a Saleae Logic: | |
39 | ||
40 | Probe I2C pin | |
41 | ------------------- | |
42 | 4 (orange) SCL | |
43 | 6 (green) SDA | |
44 | ||
45 | The sigrok command line used was: | |
46 | ||
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47 | sigrok-cli -d 0:samplerate=4mhz --time <time> |
48 | -p '4=SCL,6=SDA' -o <filename.sr> | |
49 | ||
50 | (<time> was 30s or 120s) | |
d9146492 | 51 |