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Can you probe the pin and check if you get charging and discharging waveform?
Also check if you have connected the GND on 3280 board to PSoC.
Check by connecting it to some other unused pin in PSoC.
Thanks for the reply. I have connected the Capsense switch of the 3280 board to one of the other(Excluding P1.1 to P1.5) GPIO pins of PSoC kit and it worked.
Is there any possibility of using the slider pins (P1.1 to P1.5) as the normal GPIO pins? If yes, Kindly explain.
When you are trying to use the pins P1.1 TO P1.5 as GPIO, you can expect a very small delay due to the capacitance of the sensor pads connected it. Other than that it is not a problem. But please do not connect an external sensor pad to these pins since it is already connected to a sensor in the eval board.