TrekStor eBook Reader 3.0 I2C
-------------------------------------------------------------------------------
-This is an example capture of the I2C traffic on a TrekStor eBook Reader 3.0
-EBR30-a (Weltbild + Hugendubel Edition) device.
+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.
-So far, it's unknown which device is responsible for which I2C output.
+There are three chips which are connected to the main CPU's SCL/SDA pins:
+ - Battery management chip: X-Powers AXP199
-Logic analyzer setup
---------------------
+ - RTC chip: Hec Semiconductor H8563S
-The logic analyzer used for capturing is a ChronoVu LA8 at a sample rate
-of 4MHz.
+ - Digital Thermal Orientation Sensor (DTOS): MEMSIC MXC6225XU
-The ChronoVu LA8 probes were connected to the I2C pins like this:
+
+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
- GND GND
-
-
-Data
-----
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)
+
projects / sigrok-dumps.git / blobdiff