Differences

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--- en:odroid-ups3 [2016/04/21 11:39]
joy.cho [ODROID-C1/C1+/C2]
+++ en:odroid-ups3 [2016/05/13 12:50] (current)
odroid [Specification]
@@ Line 9: / Line 9: @@
  {{http://www.hardkernel.com/main/_Files/prdt/2016/201604/201604191444388644.jpg}}
 ====== Specification ======
@@ Line 33: / Line 34: @@
 PCB Layout(DWG):{{:en:ups3:ups3_board_rev0.1_mech.zip|}}
+PCB Pattern(PNG):{{:en:ups3:ups3.zip|}}
+When the battery was fully charged(VBAT=4.2V), we performed the load test with UPS3.
+====== Time to power-off at the Load ======
+|Current | Time to power-off | No Load Output voltage  | Output voltage at the Load | VBAT|
+|2A | 25sec | 4.97V | 4.65V | 4.14 V|
+|1.8A | 140s | ::: | 4.69V | 4.12 V|
+|1.6A | 450s | ::: | 4.71 | 4.05V |
+|1.4A | 810s | ::: | 4.73V | 3.98V |
+|1.2A | 1470s | ::: | 4.81V | 3.95V |
+If your C2 takes 800mA and USB devices take 850mA, the UPS3 can supply the power to your system around 3~4 minutes at least.\\
+It seems to be fine to shutdown the system safely.
 ====== LED Indicators ======
@@ Line 91: / Line 105: @@
 Before using UPS3 on ODROID-C2, please check u-boot version. \\
 If the version of yours is the one before Mar 18 2016, update boot loader. \\
-You can find the guide how to check and update U-Boot in the end part of this wiki page.
+You can find the guide how to check and update U-Boot in the end part of this wiki page. \\
+[ How to check and update U-Boot on ODROID-C2 ]
 </WRAP>
@@ Line 323: / Line 338: @@
 </code>
-===== How to check U-Boot version and update =====
+===== How to check and update U-Boot on ODROID-C2 =====
+==== Linux ====
+== Check U-Boot Version ==
+If you have a USB-UART console, you can easily check the u-boot version using 'version' on u-boot stage. \\
+<code>
+Hit [Enter] key twice quickly during u-boot loading and enter 'ver' or 'version'.
+odroidc2# version
+U-Boot 2015.01-00089-gdfb8216 (Apr 09 2016 - 06:20:43)
+</code>
+Or you can check it after kernel booting on userspace using a simple shell script.
+<file sh getUbootVer.sh>
+#!/bin/sh
+# Sample shell script to check U-Boot version on Linux
+dd if=/dev/mmcblk0 of=/tmp/temp.bin bs=512 skip=97 count=1334 status=none
+grep -a -r -E -o ".{0,0}U-Boot 2015.01.{0,50}" /tmp/temp.bin | grep -a "("
+rm /tmp/temp.bin
+</file>
+<code>
+root@odroid64:~# vi getUbootVer.sh
+root@odroid64:~# sudo chmod a+x getUbootVer.sh
+root@odroid64:/home/odroid# ./getUbootVer.sh
+         U-Boot 2015.01-00089-gdfb8216 (Apr 09 2016 - 06:20:43)
+</code>
+== Update U-Boot ==
+If your U-Boot version is not the latest one, you can update it using apt-get command.
+<code>
+sudo apt-get install u-boot
+</code>
+==== Android ====
+== Check U-Boot Version ==
+If you have a USB-UART console, you can easily check the u-boot version using 'ver' on u-boot stage as described in the aforementioned Linux case. \\
+Or you can check it after kernel booting on userspace using the following simple shell script.
+<file sh getUbootVer.sh>
+#!/bin/sh
+# Sample shell script to check U-Boot version on Android
+/bin/dd if=/dev/block/mmcblk0 of=/data/temp.bin bs=512 skip=97 count=1334
+grep -a -r -E -o ".{0,0}U-Boot 2015.01.{0,50}" /data/temp.bin | grep -a "("
+rm /data/temp.bin
+</file>
+<code>
+(run Terminal Emulator)
+u0_a48@odroidc2:/ $ su
+root@odroidc2:/ # cd /data/
+root@odroidc2:/data # vi getUbootVer.sh
+root@odroidc2:/data # chmod 755 getUbootVer.sh
+root@odroidc2:/data # ./getUbootVer.sh
++0 records in
++0 records out
+bytes transferred in 0.014 secs (48786285 bytes/sec)
+/data/temp.bin:U-Boot 2015.01-00089-gdfb8216 (Apr 09 2016 - 06:20:43)
+root@odroidc2:/data #
+</code>
-[TODO]
+== Update U-Boot ==
+If your U-Boot version is not the latest one, you can update it using Android update package. \\
+http://odroid.com/dokuwiki/doku.php?id=en:c2_release_android