Forum Post: RTC clock drift

Hello World!

My RTC is running a few second slow each hour, could some one please explain why and how to tweak any S/W or H/W parameter to compensate/calibrate this drift timer?

My Linux timer is running slower also, but I know I can adjust that with cron job on adjtimex, etc... but I understand that the hwclock need to be fixed with kernel RTC tweak ??

Here is the dmesg clock, if that help. Thanks!

root@amadel:/>dmesg|grep clock

[    0.000000] OMAP clockevent source: GPTIMER2 at 24000000 Hz

[    0.000000] OMAP clocksource: GPTIMER1 at 32768 Hz

[    0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms

[    0.135742] Switching to clocksource gp timer

[    2.244750] clock: disabling unused clocks to save power

[    2.265472] tps65910-rtc tps65910-rtc: setting system clock to 2000-01-01 22:05:33 UTC (946764333)