projects / sigrok-dumps.git / blame
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|---|---|---|
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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 | ||
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12 | There are three chips which are connected to the main CPU's SCL/SDA pins: |
| 13 | ||
| 14 | - Battery management chip: X-Powers AXP199 | |
| 15 | ||
| 16 | - RTC chip: Hec Semiconductor H8563S | |
| 17 | ||
| 18 | - Digital Thermal Orientation Sensor (DTOS): MEMSIC MXC6225XU | |
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19 | |
| 20 | ||
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21 | trekstor_ebr30_a_i2c_0x15.sr |
| 22 | ---------------------------- | |
| f9eb559c | 23 | |
| 47cd3c8f | 24 | The logic analyzer used was a ChronoVu LA8 (at 4MHz): |
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25 | |
| 26 | Probe I2C pin | |
| 27 | ------------------- | |
| 28 | 1 (orange) SCL | |
| 29 | 7 (yellow) SDA | |
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30 | |
| 31 | The sigrok command line used was: | |
| 32 | ||
| 33 | sigrok-cli -d 0:samplerate=4mhz --samples 8388608 \ | |
| 34 | -p '2=SCL,8=SDA' -o trekstor_ebr30_a_i2c_0x15.sr | |
| 35 | ||
| d9146492 | 36 | |
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37 | trekstor_ebr30_a_i2c_30s.sr and trekstor_ebr30_a_i2c_120s.sr |
| 38 | ------------------------------------------------------------ | |
| d9146492 | 39 | |
| c7892931 | 40 | This is a 30s/120s dump of the I2C traffic while the device was attached |
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41 | to USB. |
| 42 | ||
| 47cd3c8f | 43 | The logic analyzer used was a Saleae Logic (at 4MHz): |
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44 | |
| 45 | Probe I2C pin | |
| 46 | ------------------- | |
| 47 | 4 (orange) SCL | |
| 48 | 6 (green) SDA | |
| 49 | ||
| 50 | The sigrok command line used was: | |
| 51 | ||
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52 | sigrok-cli -d 0:samplerate=4mhz --time <time> |
| 53 | -p '4=SCL,6=SDA' -o <filename.sr> | |
| 54 | ||
| 55 | (<time> was 30s or 120s) | |
| d9146492 | 56 |