primax: Thread: Calibration patch

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Hi,

A question to the calibration patch:

When I start the scanner and load previous calibration data the scanner stops 
and wont work anymore. Plug out, plug in and it's reseted. 
But the problem remains. 
It seems that the calibration function does not only retrieves the calibration 
data but also makes some imopiortant settings in the scanner. 

Does anyone knows more about that?

Andre

PS: I wanted to store the calibration data in a default file and load them 
always. This makes life much easier but has the above problem

- -- 
Andre Herms                   ####@####.####
                              http://www.cs.uni-magdeburg.de/~aherms
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Hello,

I think that you're talking about my code (calib+force patch). Well, I've
assumed that calibrate_LM9811 function only sets LM9811_arr_PGA array and
LM9811_reg_PGA/VGA/DAC variables... It worked for me and for my friend :)
(both have network scanner). So this code wasn't tested very thoroughly as
you see :( fell free to suspect my code as well :-). I'm afraid I don't
know what exactly calibrate_LM9811 does...

> It seems that the calibration function does not only retrieves the calibration
> data but also makes some imopiortant settings in the scanner.
>
> PS: I wanted to store the calibration data in a default file and load them
> always. This makes life much easier but has the above problem
>

I have had the same idea :)

regards
Michal Kostrzewa

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Hi,

> > It seems that the calibration function does not only retrieves the
> > calibration data but also makes some imopiortant settings in the scanner.

There was indeed an important step for the initialization of the scanner 
missing. A call of init_LM9811(). This is done within the calibration an must 
be done at least one time the scanner is turned on. 
I added this call before the clibration loading and it worked. 
GREAT!

The calibration data is also stored in a file by default now. So the scanning 
is really fast.

Bye

Andre

- -- 
Andre Herms                   ####@####.####
                              http://www.cs.uni-magdeburg.de/~aherms
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On Tue, Oct 01, 2002 at 04:02:57PM +0200, Andre Herms wrote:
> There was indeed an important step for the initialization of the scanner 
> missing. A call of init_LM9811(). This is done within the calibration an must 
> be done at least one time the scanner is turned on. 
> I added this call before the clibration loading and it worked. 
> GREAT!
cool. is it in the primax_scan cvs?

-- 
Christian Ordig
Germany

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> cool. is it in the primax_scan cvs?

Yes it is. Including a ready to ship sane backend using libprimax.
Have a look at it. I'd like to make a new release from this. 

Christian - could you give me admin rights at sourceforge?

Bye 

Andre

- -- 
Andre Herms                   ####@####.####
                              http://www.cs.uni-magdeburg.de/~aherms
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