[sane-devel] genesys backend - warming up procedure
Gerhard Jaeger wrote: >On Donnerstag 28 Oktober 2004 12:43, Artur Pierscinski wrote: > > >>Gerhard Jaeger wrote: >> >> >>>On Mittwoch 27 Oktober 2004 16:01, Artur Pierscinski wrote: >>> >>> >>>><> >>>>Hi, >>>> >>>>I've done some tests here with the ST24 and rewrote some parts of >>>>the code, that the warmup and calibration stuff gets passed on it. >>>>The major problem of the current genesys code is, that it is tied to >>>>a UMAX device. All the settings specific to CCD and DAC (and motor) >>>>are only valid for this scanner. This needs to be tweaked. I did this >>>>here, but the code is not available so far >>>> >>>>Gerhard >>>> >>>> >>Thats is fine. May I help in something? >>So there is almost no traffic in experimental cvs, so its like as no any >>progress. >> >> > >That's probably not true, I think Henning is still working on that. >I didn't want to check in my code, as there are too much changes, that >have not been discussed with Henning. Maybe I add a new directory > > Henning, as he wrote in other post, have not enough time to work on that code. That seems, as exists some independent from each other code, which try to solve genesys devices to work. Artur Pierscinski e-mail: ar...@ptic.pl
[sane-devel] genesys backend - warming up procedure
Gerhard Jaeger wrote: >On Mittwoch 27 Oktober 2004 16:01, Artur Pierscinski wrote: > > >> <> >> Hi, >> >> I've done some tests here with the ST24 and rewrote some parts of >> the code, that the warmup and calibration stuff gets passed on it. >> The major problem of the current genesys code is, that it is tied to >> a UMAX device. All the settings specific to CCD and DAC (and motor) >> are only valid for this scanner. This needs to be tweaked. I did this >> here, but the code is not available so far >> >> Gerhard >> Thats is fine. May I help in something? So there is almost no traffic in experimental cvs, so its like as no any progress. So, the matter is I as expected---code is device (UMAX) expected; Your answer clears my assumptions. Artur Pierscinski
[sane-devel] genesys backend - warming up procedure
Hi!
I have question about warming up procedure in genesys backend (scaner:
Plustek ST24).
How is proper range of readed values from scaner sensor during warming
up the lamp procedure?
It seems for me like a 12-bits (sensor), with set other (higher) bit set.
So, calculated average values are about 9600, which in my case
newer pass warming loop exit:
if (second_average > (110 * 256) && (((double) difference) /
second_average) < 0.002)
{
DBG (DBG_info, "genesys_warmup_lamp: warmup succeeded after %d
seconds\n",
seconds);
break;
}
Multiply second_average by 3 in above condition will satisfied it,
and warming up lamp ends with success.
Is those belongs only to my scanner or happed on others to?
Artur Pierscinski
e-mail: ar...@ptic.pl
