On Wed, Feb 5, 2020 at 8:39 AM Harke Smits <[email protected]> wrote: > > Hello, > > Is there a recipe that works to install the RTC (DS3231/1307)? I googled and > tried a lot of things but can not make it work. I succeeded on older Debian > versions but now I am lost. > I have Debian 2018-10-07. The hw works as proved by i2cdetect -y -r 2. At > address 0x68. "echo ds1307 0x68 >/sys/class/i2c-adapter/i2c-2/new_device" > gives: permission denied. > Looks like I need to do something with overlay files? But uEnv.txt does not > need to be modified, right? ls -al /dev/rtc*: only gives two entries for rtc0. > Please help.
Which DS* device? we have an overlay for both devices.. So assuming DS1307 and i2c2: https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-I2C2-RTC-DS1307.dts uboot_overlay_addr0=/lib/firmware/BB-I2C2-RTC-DS1307.dtbo and this swaps the Beagle RTC0 with this one, so normal linux tools will use the DS1307 as rtc0 If it doesn't work, please run and report: sudo /opt/scripts/tools/version.sh So we can see what's "old" with your setup.. Regards, -- Robert Nelson https://rcn-ee.com/ -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAOCHtYhA0wW%3DSKajnpEqXuciaEnp2t63r7_j%3DLoF8F%3DM5MkOhg%40mail.gmail.com.
