how to sense battery voltage using adc and display

[thangameenaraje]

Hi,\

iam using i.mx6sl platform in my custom board.  jelly bean/ kitkat (using 3.0 kernel). i have to sense the battery voltage whether its charging or how many percent remaining. (like a tablet). It should inform about shut down .

Regarding this I am using tsc2004 touch controller and i connected aux pin to  battery BQ24103(bat pin).

right now its showing as charged whether adapter is connected or not.

i look into that file /kernel/driver/power/sabresd_battery.c in that there is function (max11801_read_adc) so it called max11801 driver file.

how can i port to my i.mx6sl platform.

[CarlosCasillas]

Hi,

I think there is not available a specific example for the i.MX6, but you could take a look at the SABRE platform for iMX53, which included a rechargeable battery:

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=RDIMX53SABRETAB

Additionally, there are some other threads with some related applications (like a fuel gauge on Android), on the following:

https://community.freescale.com/message/443966

https://community.freescale.com/message/374152

Hope this will be useful for you.
Best regards!
/Carlos

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