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[ts-7000] Max197 on ts-7250

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Subject: [ts-7000] Max197 on ts-7250
From: "on the horizon" <>
Date: Tue, 09 Nov 2010 01:04:27 -0000
Using the driver from the 'Files' repository, a variable voltage supply for 
testing, and the manual for information; perhaps someone could shed some light 
on why I am getting these results :

If I apply 10v to the proper pins on the Max197 A/D header, the highest value I 
can observe from cat /dev/adc1 is 2047.

The Max197 is a 12 bit converter :

     2^12 = 4096 or 4095    
 
So, I would deduce that the highest value I could get from the Max197 though 
the driver would be 4095.  

So, in a nutshell; why am I only getting 2^11 as a maximum value?



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