Hi Holger,
The man page for the DS2438 http://owfs.org/index.php?page=ds2438 has a
problem with the man->html conversion. For some reason the Ienable 0-3 is
rendered as 1-4.
Basically the IAD is bit 0 and CA is bit 1 (from the data sheet).
I know this only partly answers your question.
Paul Alfille
On 9/24/07, Holger Rose < [EMAIL PROTECTED]> wrote:
>
> Hi all,
>
> i have trouble to meaningfully read "vis" (current) from a ds2438 (no
> humidity value or so).
>
> My measurement is like DS2438 Block-Diagram in
> http://pdfserv.maxim-ic.com/en/ds/DS2438.pdf Figure 1 (R-Sens = 0,001
> Ohm).
> I read successfully Vad (5.02 V), Vdd (6.28 V) and temperature (20.8125Grad
> Celsius) with correct values. But the values for "vis" are always 15.9961
> (charging) or 0.0002441 (no charging). I have played with Ienable, but no
> change (but i does´nt understand the fully sense of Ienable). Originally
> there is a value of "3" for Ienable, but the same result for vis comes
> with
> 1 or 2.
> The real current is at most 2 A.
>
> What do i make wrong?
>
>
> Holger
>
>
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