We're no longer updating This wiki!!


This shows you the differences between two versions of the page.

Link to this comparison view

en:odroidwrtc [2014/07/28 17:23] (current)
Line 1: Line 1:
 +====== RTC on the Odroid W ======
 +This page details how to setup the RTC Odroid W on the Raspbian “wheezy” image from http://​www.raspberrypi.org/​downloads
 +===== Preparations =====
 +  * Odroid W
 +  * uSD-Card ​ => over 2GB or eMMC Module
 +  * RTC Backup battery ​
 +===== Configuration =====
 +  - Building the kernel\\ Please refer to [[en:​odroidwkernelcompilation | Kernel compilation for odroid-w]]
 +  - With your Odroid W insert a RTC Backup Battery into the battery connector which is BT1.
 +  - Enable I2C by running:<​code>​sudo vi /​etc/​modprobe.d/​raspi-blacklist.conf</​code>​ Find the I2C line where the i2c is black listed <​code>​blacklist i2c-bcm2708</​code>​ Comment it out by replacing it with the line below <​code>#​blacklist i2c-bcm2708</​code>​
 +  - Now you have the RTC Odroid W running with the current date and time the next step is to make it load   when the Odroid W boots.\\ Edit the modules file: <​code>​ sudo vi /​etc/​modules </​code>​ Add rtc-rc5t619 at the end of the file and save it.
 +  - Next you want to add the RTC Odroid W at boot by editing /​etc/​rc.local.\\ sudo vi /​etc/​rc.local\\ Add the following at the bottom of the page above exit 0. <​code>​ echo rc5t619 0x32 > /​sys/​class/​i2c-adapter/​i2c-0/​new_device ​
 + ​hwclock -s </​code>​ Save the file and reboot your Odroid W. <​code>​sudo reboot</​code>​ If everything worked correctly the RTC Odroid W should be initialised on boot and the current date and time will be loaded into Linux.
 +  - You can check the current time on the RTC Odroid W with: <​code>​ sudo hwclock -r</​code>​ If this is the first time you have run the RTC Odroid W it will display a date of July 17th 2014.
 +  - If the Odroid W is connected to the internet the correct date and time should be set automatically otherwise you can set the current date and time using: <​code>​sudo date -s "17 JUL 2014 18:​00:​00"​ </​code>​ You can check the current linux date with the command (date).
 +  - To save the date onto the RTC Odroid W use the following command: <​code>​ sudo hwclock -w </​code>​ Verify the date has been saved onto the RTC Odroid W with: <​code>​sudo hwclock -r</​code>​
en/odroidwrtc.txt · Last modified: 2014/07/28 17:23 (external edit)
CC Attribution-Share Alike 3.0 Unported
Driven by DokuWiki Recent changes RSS feed Valid CSS Valid XHTML 1.0