diff options
| -rw-r--r-- | i2c/trekstor_ebr30_a/README | 37 | ||||
| -rw-r--r-- | i2c/trekstor_ebr30_a/trekstor_ebr30_a_i2c_30s.sr | bin | 0 -> 154899 bytes |
2 files changed, 24 insertions, 13 deletions
diff --git a/i2c/trekstor_ebr30_a/README b/i2c/trekstor_ebr30_a/README index 91ff5c3..4a4da3a 100644 --- a/i2c/trekstor_ebr30_a/README +++ b/i2c/trekstor_ebr30_a/README @@ -2,8 +2,8 @@ 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: @@ -13,26 +13,37 @@ 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. -Logic analyzer setup --------------------- +trekstor_ebr30_a_i2c_0x15.sr +---------------------------- -The logic analyzer used for capturing is a ChronoVu LA8 at a sample rate -of 4MHz. - -The ChronoVu LA8 probes were connected to the I2C pins like this: +The logic analyzer used for capturing was a ChronoVu LA8: 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 +--------------------------- + +This is a 30 second dump of the I2C traffic while the device was attached +to USB. + +The logic analyzer used for capturing was a Saleae Logic: + + Probe I2C pin + ------------------- + 4 (orange) SCL + 6 (green) SDA + +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 + diff --git a/i2c/trekstor_ebr30_a/trekstor_ebr30_a_i2c_30s.sr b/i2c/trekstor_ebr30_a/trekstor_ebr30_a_i2c_30s.sr Binary files differnew file mode 100644 index 0000000..5be119e --- /dev/null +++ b/i2c/trekstor_ebr30_a/trekstor_ebr30_a_i2c_30s.sr |