The rtc doesn't keep the date time on wi-imx53 jsk lx

Embedded Devices Linux
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1

Hi,
I am using the wi-imx53 jsk linux board.
I set the date and time wiht the ‘date’ command, and I do ‘hwclock -w’, and then I do ‘hwclock -r’ to read the date/time, this works fine. I want to preserve the date and time but When I remove the power suply the date and time are reset, but when I do a reboot the date and time is preserved. I enable the coin-cell with the jumper 3. The power supply that I am using is the VChRG.

I read thet this board have a bug with the da9053 here:

http://knowledge.digi.com/articles/Knowledge_Base_Article/On-module-Internal-RTC-via-PMIC-not-keeping-time-on-new-i-mx53-JSK-development-board-30013721-03

How can I resolve this?

2

My recommendation is to use an external RTC device. In the latest version of the JSCCWMX53 we have removed the Coincell and we have added the RTC device EM3027.