plustek: It's alive! (was: Re: Epson 1250)
Subject:
Re: It's alive! (was: Re: Epson 1250)
From:
"Jaeger, Gerhard" ####@####.####
Date:
20 Dec 2001 22:09:48 -0000
Message-Id: <01122023045100.00623@ruebennase>
Hi,
this is not only a wild guess, the UMAX 3400 and 5400 are also
LM983x based devices and it is known that they use one
of the misc I/O pins. It seems, that this is the better way to keep
the lamps up during the reset phase of the chip which is often
done during the calibration. The sideeffect here on Plustek devices
which use the reg29 is, that the lamp is very often switched on and off...
Anyway - good work. This may help to make the stuff work with
the EPSON...
Gerhard
On Thursday, 20. December 2001 18:44, Reinhard Max wrote:
> Hallo again,
>
> On Thu, 20 Dec 2001 at 17:59, Reinhard Max wrote:
> > I still have to figure out which of the lines it is,
>
> The lamp seems to be controlled only by misc I/O pin 5.
> It doesn't turn off when reg 29 is set to 0.
>
> > and I still haven't tested scanning.
>
> This is unfortunately not yet working. The image that comes out is
> till black (or grey if the brightness is being raised), and sometimes
> shows dotted diagonal lines.
>
> I have to stop for today now. Hopefully I can continue somewhat during
> my Christmas vacations.
>
> cu
> Reinhard
>
