Hi dears:
I start work with CRTOUCH, and found some problem with CRTOCH and 5-wire TP. I use "Xtrinsic CRTouch Capacitive and Resistive Touch-Sensing Platform Evaluation Board"
The 5-wire TP can work under mouse emulation tab. And I successed calibration. But when I change to Gestures tab and start test, it shows:
"Multi-touch points NOT calibrated. Please calibrate first at the 'Calibration' tab."
Pls take a look at the following image:
The calibrationg is ok.
But here, it show calibration is not ok.
The data from IC looks ok.
When I use a 4-wire TP, it will work, but 5-wire TP not.
Anybody who met this problem before?
Thanks a lot!
Hi Luo Deqiang
Unfortunately, dual touch gesture recognition is only supported for 4-wire resistive touch and unfortunately there is no other solution that we can offer to work with gesture recognition dual-touch with 5-wire.
Basically, this is not a technical issue, but it is the way the algorithm is implemented for the CRTOUCH, this algorithm consider the impedance distribution of a 4-wire screen (connections, signal polarization) and therefore, the impedance distribution are different for the 5-wire screen panels.
So, unfortunately , it is not possible to detect double touch gesture detection with the 5-wire CRTOUCH, 5-wire CRTOUCH only support single touch detection.
Have a great day,
Jose Reyes
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Dear Jose:
Thanks for your explanation. Now I'm fully understand.
Thank you & best regards!
2014-05-28
ldqmoon
From: Jose Alberto Reyes Morales
Date: 2014-05-27 23:32
To: Luo Deqiang
Subject: Re: - CRTOUCH can not work with 5-wire TP?
CRTOUCH can not work with 5-wire TP?
reply from Jose Alberto Reyes Morales in Sensors - View the full discussion
Hi Luo Deqiang
Unfortunately, dual touch gesture recognition is only supported for 4-wire resistive touch and unfortunately there is no other solution that we can offer to work with gesture recognition dual-touch with 5-wire.
Basically, this is not a technical issue, but it is the way the algorithm is implemented for the CRTOUCH, this algorithm consider the impedance distribution of a 4-wire screen (connections, signal polarization) and therefore, the impedance distribution are different for the 5-wire screen panels.
So, unfortunately , it is not possible to detect double touch gesture detection with the 5-wire CRTOUCH, 5-wire CRTOUCH only support single touch detection.
Have a great day,
Jose Reyes