projects / sigrok-dumps.git / blame
| Commit | Line | Data |
|---|---|---|
| f9eb559c UH |
1 | ------------------------------------------------------------------------------- |
| 2 | TrekStor eBook Reader 3.0 I2C | |
| 3 | ------------------------------------------------------------------------------- | |
| 4 | ||
| d9146492 UH |
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. | |
| f9eb559c UH |
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 | ||
| f4298ac3 UH |
12 | There are three chips which are connected to the main CPU's SCL/SDA pins: |
| 13 | ||
| 14 | - Battery management chip: X-Powers AXP199 | |
| dc572f26 | 15 | * I²C slave address: 0x34/52 (shifted: 0x68/104) |
| f4298ac3 UH |
16 | |
| 17 | - RTC chip: Hec Semiconductor H8563S | |
| dc572f26 | 18 | * I²C slave address: 0x51/81 (shifted: 0xa2/162) |
| f4298ac3 UH |
19 | |
| 20 | - Digital Thermal Orientation Sensor (DTOS): MEMSIC MXC6225XU | |
| dc572f26 | 21 | * I²C slave address: 0x15/21 (shifted: 0x2a/42) |
| f9eb559c UH |
22 | |
| 23 | ||
| d9146492 UH |
24 | trekstor_ebr30_a_i2c_0x15.sr |
| 25 | ---------------------------- | |
| f9eb559c | 26 | |
| 47cd3c8f | 27 | The logic analyzer used was a ChronoVu LA8 (at 4MHz): |
| f9eb559c UH |
28 | |
| 29 | Probe I2C pin | |
| 30 | ------------------- | |
| 31 | 1 (orange) SCL | |
| 32 | 7 (yellow) SDA | |
| f9eb559c UH |
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 | ||
| d9146492 | 39 | |
| c7892931 UH |
40 | trekstor_ebr30_a_i2c_30s.sr and trekstor_ebr30_a_i2c_120s.sr |
| 41 | ------------------------------------------------------------ | |
| d9146492 | 42 | |
| c7892931 | 43 | This is a 30s/120s dump of the I2C traffic while the device was attached |
| d9146492 UH |
44 | to USB. |
| 45 | ||
| 47cd3c8f | 46 | The logic analyzer used was a Saleae Logic (at 4MHz): |
| d9146492 UH |
47 | |
| 48 | Probe I2C pin | |
| 49 | ------------------- | |
| 50 | 4 (orange) SCL | |
| 51 | 6 (green) SDA | |
| 52 | ||
| 53 | The sigrok command line used was: | |
| 54 | ||
| c7892931 UH |
55 | sigrok-cli -d 0:samplerate=4mhz --time <time> |
| 56 | -p '4=SCL,6=SDA' -o <filename.sr> | |
| 57 | ||
| 58 | (<time> was 30s or 120s) | |
| d9146492 | 59 |