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Forum Post: RE: AM335x LCD touch offset issue

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Dear Miroslav,

Calibrated data at fist time

Calibrating touchscreen (first time only)xres = 800, yres = 480
Took 13 samples...
Top left : X = 3414 Y = 3741
Took 18 samples...
Top right : X = 3434 Y =  354
Took 18 samples...
Bot right : X =  467 Y =  340
Took 7 samples...
Bot left : X =  504 Y = 3752
Took 12 samples...
Center : X = 1968 Y = 2046
821.194214 0.000113 -0.205910
492.429474 -0.129304 0.000327
Calibration constants: 53817784 7 -13494 32271858 -8474 21 65536

FBSET after the calibration

mode "800x480-62"
    # D: 30.000 MHz, H: 32.433 kHz, V: 61.895 Hz
    geometry 800 480 800 1024 16
    timings 33333 39 39 29 13 47 2
    rgba 5/11,6/5,5/0,0/0
endmode

FBSET after Power Recycle

mode "800x480-62"
    # D: 30.000 MHz, H: 32.433 kHz, V: 61.895 Hz
    geometry 800 480 800 1024 16
    timings 33333 39 39 29 13 47 2
    rgba 5/11,6/5,5/0,0/0
endmode

I think there is no change.

 

Regards

Jithin


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