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-------------------------------------------------------------------------------
TrekStor eBook Reader 3.0 I2C
-------------------------------------------------------------------------------
This is a set of example captures of the I2C traffic on a TrekStor eBook
Reader 3.0 EBR30-a (Weltbild + Hugendubel Edition) device.
For details on the device see:
http://randomprojects.org/wiki/TrekStor_eBook_Reader_3.0_EBR30-a_(Weltbild_%2B_Hugendubel_Edition)
There are three chips which are connected to the main CPU's SCL/SDA pins:
- Battery management chip: X-Powers AXP199
* I²C slave address: 0x34/52 (shifted: 0x68/104)
- RTC chip: Hec Semiconductor H8563S
* I²C slave address: 0x51/81 (shifted: 0xa2/162)
- Digital Thermal Orientation Sensor (DTOS): MEMSIC MXC6225XU
* I²C slave address: 0x15/21 (shifted: 0x2a/42)
trekstor_ebr30_a_i2c_0x15.sr
----------------------------
The logic analyzer used was a ChronoVu LA8 (at 4MHz):
Probe I2C pin
-------------------
1 (orange) SCL
7 (yellow) SDA
The sigrok command line used was:
sigrok-cli -d 0:samplerate=4mhz --samples 8388608 \
-p '2=SCL,8=SDA' -o trekstor_ebr30_a_i2c_0x15.sr
trekstor_ebr30_a_i2c_30s.sr and trekstor_ebr30_a_i2c_120s.sr
------------------------------------------------------------
This is a 30s/120s dump of the I2C traffic while the device was attached
to USB.
The logic analyzer used was a Saleae Logic (at 4MHz):
Probe I2C pin
-------------------
4 (orange) SCL
6 (green) SDA
The sigrok command line used was:
sigrok-cli -d 0:samplerate=4mhz --time <time>
-p '4=SCL,6=SDA' -o <filename.sr>
(<time> was 30s or 120s)
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