X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=i2c%2Ftrekstor_ebr30_a%2FREADME;h=8d3dde7cdda70e50cdad61ce5b9c1d586820501f;hb=74c85c56f7aaf30e48a3c1387abf18e27202da03;hp=91ff5c31872f481f421d47b06a395217499c80b2;hpb=f9eb559c8e87546fee0b672f2f7a5efb9125e17e;p=sigrok-dumps.git

diff --git a/i2c/trekstor_ebr30_a/README b/i2c/trekstor_ebr30_a/README
index 91ff5c3..8d3dde7 100644
--- a/i2c/trekstor_ebr30_a/README
+++ b/i2c/trekstor_ebr30_a/README
@@ -2,37 +2,58 @@
 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
+  * I²C slave address: 0x34/52 (shifted: 0x68/104)
 
-Logic analyzer setup
---------------------
+ - RTC chip: Hec Semiconductor H8563S
+  * I²C slave address: 0x51/81 (shifted: 0xa2/162)
 
-The logic analyzer used for capturing is a ChronoVu LA8 at a sample rate
-of 4MHz.
+ - Digital Thermal Orientation Sensor (DTOS): MEMSIC MXC6225XU
+   * I²C slave address: 0x15/21 (shifted: 0x2a/42)
 
-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)
+