external battry used for driving RTC in hibernation mode in Tiva board

Rahul Kumar38

Other Parts Discussed in Thread: TM4C1294NCPDT, EK-TM4C1294XL

hi,

i want to know ho wto connect the 3.3 v battry to the tiva TM4C1294NCPDT Microcontroller, so that i can when ever the system goes to hibernation mode the RTC must not stop working.

i want to know which pin should i connect to Tiva baord from External battry.

over 10 years ago

0 Ryan Brown1 over 10 years ago

TI__Guru**** 223157 points

Hi Rahul,

Moving this thread to the TM4C Forum.

Regards,
Ryan

0 Amit Ashara over 10 years ago

TI__Guru**** 244450 points

Hello Rahul,

Are you referring to the EK-TM4C1294XL Connected LaunchPad?

Please first refer to the data sheet for the device as it clearly shows the connection to external battery for Hibernate Mode.

Regards
Amit

0 Rahul Kumar38 over 10 years ago in reply to Amit Ashara

Prodigy 250 points

yaa..i refered it shows pin68 should be connected to (+) supply of external battry .
But i want to know which pin is for that.can i get the pin number on which i can connect external battry.

0 Amit Ashara over 10 years ago in reply to Rahul Kumar38

TI__Guru**** 244450 points

Hello Rahul,

Please refer to the following post where there is an ongoing discussion for connecting the battery to the EK-TM4C1294XL

e2e.ti.com/.../505253

Regards
Amit

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external battry used for driving RTC in hibernation mode in Tiva board