Dear All
I am trying to set up a 3M MicroTouch 450 Industrial Monitor. I am using
devi-microtouch on /dev/ser1. I get a response from the touch panel but I
cannot use Calib to calibrate it because the mapping of where I press does
not relate to the targets on the screen. There appears to be dead spots and
if I move my finger slowly down the screen the cursor goes up the screen.
Is there a step that I am missing in starting the driver and the
calibration. I am starting the driver as below
devi-microtouch -vvv microtouch fd -d /dev/ser1
I get a response and it all looks ok and it tells me it cannot find the
calib file which is correct, and it identifies the graphics as the correct
resolution 1024x768 and sets the coordinates to sxl : 0 sxh : 1023 syl : 0
syh : 767
Any help would be appreciated. Is this the correct driver for the
NearFieldImaging NFI touch screen.
Rod Stevens
CSIRO Minerals
Rodney Stevens wrote:
Dear All
I am trying to set up a 3M MicroTouch 450 Industrial Monitor. I am using
devi-microtouch on /dev/ser1. I get a response from the touch panel but I
cannot use Calib to calibrate it because the mapping of where I press does
not relate to the targets on the screen. There appears to be dead spots and
if I move my finger slowly down the screen the cursor goes up the screen.
Bumped into a similar effect on a piece of QNX 4.x based equipment. I
found, after trying to figure out if I was doing something wrong, that
calib would work correctly in something like 1 in 10 attempts.
Keep re-running calib. 
On Fri, 17 Sep 2004 16:41:08 +1000, Rodney Stevens <rod.stevens@csiro.au>
wrote:
Dear All
I am trying to set up a 3M MicroTouch 450 Industrial Monitor. I am using
devi-microtouch on /dev/ser1. I get a response from the touch panel but I
cannot use Calib to calibrate it because the mapping of where I press
…
This sound eerily familiar.
Dolch switched recently (without telling) from a microtouch
to AD Metro touch controller on the same model number,
but different touch controller. See-they supply a
Windows driver, so noone will notice. Right 
The cursor does similar things to what you describe and
calibration works rarely.
I would double check the touch controller-if the
controller works, calibration should-everytime…
(Under QNX4 anyway, which
is the OS this application uses).
Turns out the protcols are very close to the same (5 bytes), but the
coordinates as LSB/MSB swapped, and the AD Metro gives 11 bit
X/Y coords vs the 14 bit of microtouch.
On previous models Dolch, calabration was never a problem.
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