Using a DS1307 RTC on a Beageboard xM with Ubuntu


  I have a successfully setup an Ubuntu 10.10 system running on a
Beagleboard xM using one of Robert Nelson images. I can access the I2C
ports to which I have connected a Sparkfun I2C-RTC module (based on
the DS1307). I can access the RTC using the I2CTools utilities. But at
boot time the system does not pick up the RTC-DS1307 module, so
hwclock does not work.

  How do I load appropriate driver software so I can see device rtc’N’
which points to the DS1307?


Hello I’m not sure if you still have the problem, but i see an error in your command ’ echo ds1307 0x68 > /sys/class/i2c-dev/i2c-3/device/new_device ’ device don’t go there
the correct comment is ’ echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-3/new_device '.

I’m using on angstrong and it works but dont know how to add the module to boot because modutils not exist :confused:


haha was easy put a file on /etc/modules-load.d/name of module.conf and run update-modules this is on angstrom