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a 4-wire resistive touchscreen dont response any click

user1545139
Prodigy 100 points


hello：

I had a BeagleBoneBlack board and a 4-wire resistive touchscreen. The software is ti-processor-sdk-linux-am335x-evm-06.03.00.106.

The LCD had brought up, but touch is disable.

1.run the follow command to clear the calibration value.

rm /etc/udev/rules.d/ws-calibrate.rules

2. Reboot the board and LCD will display a calibration screen which have 3 cross cursors .

Matrix App Launcher V2 P1 appears after clicking three cross cursors in sequence.

3. I click any app on the Matrix and the LCD had nothing changed.

4. This is my tsc config of DTS.

&tscadc {
    status = "okay";
    tsc {
        ti,wires = <4>;
        ti,x-plate-resistance = <200>;
        ti,coordinate-readouts = <5>;
        ti,wire-config = <0x00 0x11 0x23 0x32>;
        ti,charge-delay = <0x400>;
    };
thanks!