Hi,
debian@beaglebone:/dev$ i2cdetect -r -y 2
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- UU -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
debian@beaglebone:/dev$ i2cdetect -r -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
debian@beaglebone:/dev$ i2cdetect -r -y 0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- 34 -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: UU -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: UU -- -- -- -- -- -- --
debian@beaglebone:/dev$
Regards,
NK
On Mon, Aug 31, 2020 at 1:46 PM Tarmo <[email protected]> wrote:
> Hi Niresh,
>
> On Monday, 31 August 2020 06:45:48 UTC+3, Niresh wrote:
>>
>> Attached output from "sudo /opt/scripts/tools/version.sh" and the content
>> of your "/boot/uEnv.txt" file along with boot log message.
>>
>
> They look good. I suspect you're mostly there :)
>
> debian@beaglebone:/boot$ dmesg | grep rtc
>>
>> [ 2.283660] rtc-ds1307: probe of 1-0068 failed with error -16
>>
>
> This indicates that the device tree was loaded correctly, but the kernel
> can't talk to your RTC chip. If you can figure out why, you've enabled
> systemd-timesyncd.
>
> Hmm, can you double-check that the I2C bus number is correct and the RTC
> chip is online?
>
> There is a utility called i2cdetect which should reveal your RTC on bus 1,
> address 68.
> https://linux.die.net/man/8/i2cdetect
>
>
>> Please help me with bash scripts for external RTC and its procedure.
>>
>
> Undo your changes to uEnv.txt and follow this guide instead. It's not
> ideal, but probably covers the relevant requirements.
>
> https://learn.adafruit.com/adding-a-real-time-clock-to-beaglebone-black/set-rtc-time
>
> --
> Kind regards,
> Tarmo
>
> --
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