X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=i2c%2Ftrekstor_ebr30_a%2FREADME;h=b4e96a83b25251e8b78c01f04ef818d9037476e9;hb=3052f4bb13d42c769baa5fc2f0512566ca60a0a0;hp=4a4da3a1ae861834e5f1787458c30b9d8dbd095d;hpb=d9146492f7619d89cc15b056ec18d4827dc3bd63;p=sigrok-dumps.git diff --git a/i2c/trekstor_ebr30_a/README b/i2c/trekstor_ebr30_a/README index 4a4da3a..b4e96a8 100644 --- a/i2c/trekstor_ebr30_a/README +++ b/i2c/trekstor_ebr30_a/README @@ -9,14 +9,19 @@ 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 + + - RTC chip: Hec Semiconductor H8563S + + - Digital Thermal Orientation Sensor (DTOS): MEMSIC MXC6225XU trekstor_ebr30_a_i2c_0x15.sr ---------------------------- -The logic analyzer used for capturing was a ChronoVu LA8: +The logic analyzer used was a ChronoVu LA8 (at 4MHz): Probe I2C pin ------------------- @@ -29,13 +34,13 @@ The sigrok command line used was: -p '2=SCL,8=SDA' -o trekstor_ebr30_a_i2c_0x15.sr -trekstor_ebr30_a_i2c_30s.sr ---------------------------- +trekstor_ebr30_a_i2c_30s.sr and trekstor_ebr30_a_i2c_120s.sr +------------------------------------------------------------ -This is a 30 second dump of the I2C traffic while the device was attached +This is a 30s/120s dump of the I2C traffic while the device was attached to USB. -The logic analyzer used for capturing was a Saleae Logic: +The logic analyzer used was a Saleae Logic (at 4MHz): Probe I2C pin ------------------- @@ -44,6 +49,8 @@ The logic analyzer used for capturing was a Saleae Logic: The sigrok command line used was: - sigrok-cli -d 0:samplerate=4mhz --time 120s - -p '4=SCL,6=SDA' -o trekstor_ebr30_a_i2c_30s.sr + sigrok-cli -d 0:samplerate=4mhz --time