Differences

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--- web-u2 [2019/09/09 13:37] – [Board] kingkevin
+++ web-u2 [2019/09/09 16:26] – [Software] kingkevin
@@ Line 55: / Line 55: @@
 Software version 4.0 or later also do not work with this device. You need to use version 3.0.\\
 This device can still be used to measure voltage and current, but since there is no update anymore it will not be able to be used to detect charger profiles.
+There is also a footprint for an Bluetooth adapter behind the screen, but it was not placed yet (the software was probably not ready).
+{{:u2:web-u2_middle_top.jpg?0x150|}}
 I read out the FRAM (where the settings are stored) but did not find the serial number in there.
@@ Line 60: / Line 64: @@
 Sadly the firmware is read protected.
-There is also a footprint for an Bluetooth adapter behind the screen, but it was not placed yet (the software was probably not ready).
+Debug header pinout:
+<code>
+  _________
+__|8 6 4 2|
+|9 7 5 3 1|
+-----------
+</code>
-{{:u2:web-u2_middle_top.jpg?0x150|}}
+  - SWDIO (SWD, STM32F072 pin 34/PA13)
+  - SDA (I²C, with FRAM at 0x50)
+  - SWCLK (SWD, STM32F072 pin 37/PA14)
+  - GND
+  - GND
+  - VDD
+  - VDD
+  - SCL (I²C, with FRAM at 0x50)
+  - nRST (SWD, STM32F072 pin 7/NRST, you must connect under reset since SWD is disable after boot)
 ==== WITRN U2 V2.0 ====
@@ Line 116: / Line 134: @@
   - UART pins: to connect to the AT-09 Bluetooth module (with TI CC2541 chip). pinout, beginning with square pin: 3.8V GND RX TX
 ===== Software =====
+{{  :u2:software-screenshot.png?400|}}
+Here a couple of notes about the [[http://www.witrn.com/witrn/u2/WITRN_Software.zip|PC software]] (for Windows).
+The software is in Chinese, but you can change it by translating the words in the ''lang.ini'' file.
+Here the {{ :u2:lang.ini.zip |english lang.ini}} (works for versions 4.0, 4.1, 4.4).
+When started, the software will query [[http://www.witrn.com/updata/U2_NewVersion.pdf]] to get the latest version information.
+This is not a pdf. I think this is just to pass firewall (just like they use HTTP without SSL).\\
+This URL will return a short binary string, for example ''0x44 0x67 0x25 0x11 0x12 0x12 0x13 0x21'':
+  * ''0x44'': Software version 4.4
+  * ''0x67'': U2 Firmware version 6.7
+  * ''0x25'': X Firmware version 2.5
+  * ''0x11'': C3 Firmware version 1.1
+  * ''0x12'': C1 Firmware version 1.2
+  * ''0x12'': C0 Firmware version 1.2
+  * ''0x13'': C0s Firmware version 1.3
+  * ''0x21'': A0  Firmware version 2.1
+If will also query [[http://www.witrn.com/updata/U2_ad.pdf]], which is again not a pdf, but the text to display on the left side.\\
+Using the Network upgrade it will also download the Firmware for the U2 at [[http://www.witrn.com/updata/U2_FW_NEW.pdf]] and U2p at [[http://www.witrn.com/updata/U2_4KEYS_FW_NEW.pdf]] (raw binaries)
 ===== Support =====