Communication issue between laptop and QD pattern generator and 780 drivers added
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I use the Chromapure but I encounter a problem in driving the QuantumData 780.
I have read both the Chromapure and QD780 manuals, I have installed the QD780.inf file as recommended and followed the instructions step by step.
Computer is a HP NC6400 with XP. (Tried also with a Dell Inspiron 510m)
The generator is on com3. I configure the port, then click on the Test
button. Test is successful.
Signal generator and auto advance are enabled.
Then I call the grayscale test, set my generator on Window test pattern,
starting at 10% and click on the Measure button.
The software proceeds to the test in 10% increments but the generateur
doesn’t follow and remains at 10%.
If I proceed to test the generator again, a warning message says :
opening port failure !
Unhandled exception has occured in your application… Access to com3 is
denied. This is a known problem that will be fixed with the next release.
Gregg recommends using a hub. From his experience, this solves the problem.
I haven’t tried yet (need to buy the hub first). I’ll keep you informed.
Anyone experienced this issue ?
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