Hi Fernando, Thanks for your quick answer and interest,
Yes, I have that service enabled and either de clock_init.sh script as the service file are exactly the same as yours, I think I found the problem but I haven't been able to fix it beacause I can't find a workaround, The problem is when the next line is executed on the script: echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device I get the following error: *-bash: echo: write error: Invalid argument* This does not happen under Angstrom but it does in Debian root@beaglebone:/opt# systemctl status rtc-ds1307.service rtc-ds1307.service - DS1307 RTC Service Loaded: loaded (/lib/systemd/system/rtc-ds1307.service; enabled) Active: inactive (dead) since Fri, 01 Aug 2014 04:22:00 -0500; 1s ago Process: 1284 ExecStart=/bin/bash clock_init.sh (code=exited, status=0/ SUCCESS) CGroup: name=systemd:/system/rtc-ds1307.service Apr 23 15:22:20 beaglebone rtc_ds1307[1284]: clock_init.sh: line 1: echo: write error: Invalid argument And this is my *clock_init.sh* root@beaglebone:/opt# cat /usr/share/rtc_ds1307/clock_init.sh echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device hwclock -s -f /dev/rtc1 hwclock -w The same trying to execute that particular line manually: # echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device -bash: echo: write error: Invalid argument So I don't really know how to workaround this, I have tried to execute those commands using *crontab *without any success, If you have any idea, please let me know Thank you very much for your time Best Regards Ivan On Thursday, July 31, 2014 2:04:52 PM UTC-5, Fernando Derkoski wrote: > > Hi there Ivan, > > So my RTC was the problem, I fix it and now in my bash reads /rtc1 again > and it is working fine. > > To get my localtime working I did this > > root@beaglebone:~# ntpdate -b -s -u pool.ntp.org > root@beaglebone:/etc# rm localtime > root@beaglebone:/etc# ln -s /usr/share/zoneinfo/America/Sao_Paulo > /etc/localtime > > You can replace with your zone. But besides the correct timezone I don't > think that localtime have something to do with the RTC. > > Here is my bash: > > echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device > hwclock -s -f /dev/rtc1 > hwclock -w > > > and the service: > > > [Unit] > Description=DS1307 RTC Service > > [Service] > Type=simple > WorkingDirectory=/usr/share/rtc_ds1307 > ExecStart=/bin/bash clock_init.sh > SyslogIdentifier=rtc_ds1307 > > [Install] > WantedBy=multi-user.target > > You enable the service? because if not when you restart he will not gonna > start. > > Regards. > > > On Thursday, July 31, 2014 2:58:32 PM UTC-3, [email protected] wrote: >> >> Hi Fernando, >> >> Im having the same problem as you had after the update, but I'm using the >> BBB Rev C under Debian, and it does not get the time from the RTC during >> boot, but it does if I perform the commands (mentioned in the tutorial) >> manually: >> >> hwclock -s -f /dev/rtc1 >> hwclock -w >> >> So I'd like to ask you what did you do about the /etc/localtime to make >> it work, or how does this impact the RTC ? >> >> Besides, I see in your bash script *clock_init.sh*, you are using: >> >> >> 1. *echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-0/new_device* >> 2. *hwclock -s -f /dev/rtc0* >> 3. *hwclock -w* >> >> >> and as far as I know this is the BBB built-in RTC's path (not battery >> backened) so I wonder how is this working on your BBB ? >> >> The Adafruit Tutorial is made for a RTC Battery Backened registered under >> /dev/rtc1, as follows: >> >> echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device >> hwclock -s -f /dev/rtc1 >> hwclock -w >> >> Any suggestion, comment, idea is welcome >> >> Thanks >> >> Regards >> >> >> On Monday, February 24, 2014 12:24:00 PM UTC-6, Fernando Derkoski wrote: >>> >>> Yeah noob here, My /etc/localtime was not correct. Now the whole thing >>> work just fine. >>> >>> On Monday, February 24, 2014 1:45:18 PM UTC-3, Fernando Derkoski wrote: >>>> >>>> I tried *echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-0/new_device* >>>> >>>> and now is working, sort of, because the time it is not being set on >>>> restart. >>>> here is my bash script: >>>> >>>> /usr/share/rtc_ds1307/clock_init.sh >>>> >>>> >>>> 1. *echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-0/new_device* >>>> 2. *hwclock -s -f /dev/rtc0* >>>> 3. *hwclock -w* >>>> >>>> >>>> And here is my service: >>>> >>>> /lib/systemd/system/rtc-ds1307.service >>>> >>>> >>>> 1. *[Unit]* >>>> 2. *Description=DS1307 RTC Service* >>>> 3. >>>> 4. *[Service]* >>>> 5. *Type=simple* >>>> 6. *WorkingDirectory=/usr/share/rtc_ds1307* >>>> 7. *ExecStart=/bin/bash clock_init.sh* >>>> 8. *SyslogIdentifier=rtc_ds1307* >>>> 9. >>>> 10. *[Install]* >>>> 11. *WantedBy=multi-user.target* >>>> >>>> >>>> My service is running on the restart, but if I run >>>> dmesg | grep ds1307 I get: >>>> *[ 5.934660] rtc-ds1307: probe of 0-0068 failed with error -5* >>>> *[ 5.970362] i2c i2c-0: new_device: Instantiated device ds1307 at >>>> 0x68* >>>> >>>> >>>> On Monday, February 24, 2014 9:58:23 AM UTC-3, Fernando Derkoski wrote: >>>>> >>>>> Hello, >>>>> >>>>> Before the upgrade I was testing the RTC and it was normal, but after >>>>> I runned the okpg upgrade this happens: >>>>> >>>>> *root@beaglebone:~# i2cdetect -y -r 1* >>>>> *] 0 1 2 3 4 5 6 7 8 9 a b c d e f* >>>>> *00: -- -- -- -- -- -- -- -- -- -- -- -- --* >>>>> *10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --* >>>>> *20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --* >>>>> *30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --* >>>>> *40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --* >>>>> *50: -- -- -- -- UU UU UU UU -- -- -- -- -- -- -- --* >>>>> *60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- --* >>>>> *70: -- -- -- -- -- -- -- --* >>>>> *root@beaglebone:~# echo ds1307 0x68 > >>>>> /sys/class/i2c-adapter/i2c-1/new_device* >>>>> *-sh: echo: write error: Invalid argument* >>>>> *root@beaglebone:~#* >>>>> >>>>> I was doing this tutorial: >>>>> >>>>> http://learn.adafruit.com/adding-a-real-time-clock-to-beaglebone-black/set-rtc-time >>>>> >>>>> Anyone could help me? >>>>> >>>> root@beagleboneD:/opt# systemctl status rtc-ds1307.service rtc-ds1307.service - DS1307 RTC Service Loaded: loaded (/lib/systemd/system/rtc-ds1307.service; enabled) Active: inactive (dead) since Fri, 01 Aug 2014 04:22:35 -0500; 441ms ago Process: 1299 ExecStart=/bin/bash clock_init.sh (code=exited, status=0/ SUCCESS) CGroup: name=systemd:/system/rtc-ds1307.service Aug 01 04:22:33 beagleboneD rtc_ds1307[1299]: clock_init.sh: line 1: echo: write error: Invalid argument -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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