projects / sigrok-dumps.git / blame
| Commit | Line | Data |
|---|---|---|
| f9eb559c UH |
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 |