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Touch Screen Controller problem!

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nishal

nishal

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Hi all,
I am interfacing touch screen controller(ADS7846) with pic32 using SPI. Although it shows the touch coordinates, it simply shows random coordinates even when it is not touched or the touch screen cable removed.

Can anyone give the solution? or is it a normal behaviour? can anyone share a sample code for ADS7846 ?

Nishal
 

your current to touchscreen is less. noise is triggering the system. use a regulated supply for controller.

hock
 

hock said:
your current to touchscreen is less. noise is triggering the system. use a regulated supply for controller.

hock
Click to expand...

Thanks Hock, I will give a try with clean psu, although it is supplied with regulated supply.

Nishal
 

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