RTC reset issue

aarti trivedi

Hi All,

I have DM8148 custom board, from kernel omap_rtc is enabled.

As I saw that DM8148 internal RTC has 2 hours battery backup. In my case if I restart the board

within 5-10 minutes only and I check RTC time it shows original time(reset one). can anyone help me

where I have to change , so internal RTC works.

Thanks,

Arti.

0 Pavel Botev over 11 years ago

Aarti,

Please see if the below e2e post will be in help:

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/326747/1149660.aspx#1149660

Regards,
Pavel

0 Steve Clynes over 11 years ago

Arti,

What do you mean by "As I saw that DM8148 internal RTC has 2 hours battery backup" ?

You must provide the battery for the RTC power pins since the DM8168 does not contain any non-volatile memory or battery/super capacitor.

BR,

Steve

Processors forum