From:  <sun19920...@gmail.com>
Reply-To:  <beagleboard@googlegroups.com>
Date:  Tuesday, June 10, 2014 at 2:10 AM
To:  <beagleboard@googlegroups.com>
Subject:  [beagleboard] beaglebone ADC AIN0 AIN2 AIN3 cannot be used?

> 
> I used beaglebone white to implement ADC.
> However, when I use a signal generator and oscilloscope to see the input wave,
> There is always 1.8V in AIN0 , and always 0V in AIN2 and AIN3, but it is
> correct when I use AIN1 4 5 6,
> Could anyone help me?
Disable the touchscreen driver.

Regards,
John
> 
> 
> does that adc internal resistance cause it? Or how should I modify ADC-related
> files to get correct signal?
> -- 
> For more options, visit http://beagleboard.org/discuss
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