------------------------------------------------------------------------------- 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 - RTC chip: Hec Semiconductor H8563S - Digital Thermal Orientation Sensor (DTOS): MEMSIC MXC6225XU 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