vijayjadhav.595
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Hi..
I have 3.2" touch screen mounted on a ,3.2" TFT display which has a resolution of 320x240. The touchscreen has a touch controller XPT2046/ADS7843 which has a 12 bit adc inside. I have managed to interface it to my pic18f on which i can read the touch co-ordinates which vary from near about 100 to 3900 on for each axis depending upon which part of the screen is touched . can any one tell me how to go about calibrating the touch screen coordinates read to the buttons displayed on the touch screen...
cheers...
Vijay Jadhav.
I have 3.2" touch screen mounted on a ,3.2" TFT display which has a resolution of 320x240. The touchscreen has a touch controller XPT2046/ADS7843 which has a 12 bit adc inside. I have managed to interface it to my pic18f on which i can read the touch co-ordinates which vary from near about 100 to 3900 on for each axis depending upon which part of the screen is touched . can any one tell me how to go about calibrating the touch screen coordinates read to the buttons displayed on the touch screen...
cheers...
Vijay Jadhav.
