Re: [ts-7000] Using the ADC

[holy hans <>]

dear JD,
 
 Can you please try to use Approximation method instead of calibration method and then see the results.
 
 I am getting perfect results with Approximation method. 
 
 Thanx..
 
 Have a Good Day..
 
 Regards,
 Ankur.

JD <> wrote:

Hi,

I am using the adc code off the TS website for reading the ADC and am
using with a 9302 board. I am noticing that when the input voltage
gets to about 1.65, the ADC becomes very unstable - the raw values
ranging around 0x3333 to 0x6666 which is then making the printed
voltage fluctuate a LOT :).

From the 9301 manual, the adc swaps around to 0 at that voltage, so I
am guessing that maybe there is a calibration issue, however eve with
calibrartion that still doesnt explain why the raw conversion value is
so different.

ALso, the voltages below 1.65 print ok, and are ok above (approx) 1.74 V.

Any ideas?

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