i.MX ProcessorsのトピックRe: BT1 and RTC

BT1 and RTC

JamesRobinson — Thu, 07 Jun 2012 01:14:42 GMT

Hello Group,

I just got my tablet today and the first thing that I noticed was that the RTC was not being updated between resets. I downloaded the HW docs and I see a reference to BT1. It looks like it should be located under the i.mx53 and to the right. But on my Rev, there is nothing there.

Can someone point me to the location of the RTC battery.

Thanks,

James

Board Info.

MCIMX53SMD

SCH-26876 REV D

700-26876 REV B

Re: BT1 and RTC

i_Mx53 — Thu, 07 Jun 2012 08:58:36 GMT

Hi James,

Attach I am sending to you an image where you can see where you can add the LICELL coin battery. I hope this clarify.

Thanks,

Nagaraju

Re: BT1 and RTC

JamesRobinson — Thu, 07 Jun 2012 19:48:35 GMT

Your image is where I thought it should be.

Here is a picture of my board. I am a green board and not blue. It looks like they have updated the boards and not the docs on the freescale site. Where BT1 should be I have u7......

-James

Re: BT1 and RTC

JamesRobinson — Sat, 07 Jul 2012 19:16:59 GMT

Update,

Found the battery after I removed the main smd board. It is now located on the bottom of the board instead on top next to the processor. I also found it took more than a day on charger to get the battery to keep the battery running.

-James

Re: BT1 and RTC

i_Mx53 — Sun, 08 Jul 2012 16:20:18 GMT

Hi James,

Now your time is remembering on the system,If we poweroff the tablet.When we on the tablet it is giving the correct time.RTC is working fine.

Please share me the picture of the backup battery with markings.

Thanks

-Nag