Sorry, I don't know how to do that under Android.  I think /boot/uEnv.txt 
is unique to the Beagle.

--Mark

On Thursday, April 6, 2017 at 1:52:10 AM UTC-4, Sujit Singh wrote:
>
> Thanks Sir, Do you have any idea about the same in an android OS, as I am 
> unable to locate */boot/uEnv.txt from my android sd card os.*
>
>
>
> On Wednesday, April 5, 2017 at 12:13:54 AM UTC+5:30, Mark A. Yoder wrote:
>>
>> Sujit:
>>   By default those pins are used by the eMMC (on board flash).  If you 
>> are running from an SD card you can turn off the eMMC and use those pins. 
>>  Just edit */boot/uEnv.txt* and find the line:
>>
>> *##BeagleBone Black: eMMC disabled:*
>> *#dtb=am335x-boneblack-hdmi-overlay.dtb*
>>
>> and uncomment the dtb line and reboot.  You should then have access to 
>> those GPIO pins.
>>
>> --Mark
>>
>> On Tuesday, April 4, 2017 at 5:57:24 AM UTC-4, Sujit Singh wrote:
>>>
>>> I want to access GPIO_38, GPIO_39, GPIO_34, GPIO_35 in order to use it 
>>> as digital input pins but as they are not normal GPIO pins, how do I use 
>>> them as digital input or output pins. 
>>>
>>

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