Touch screen

[Maximilius]

Hi,

Anybody have some examples about read a Touch screen panel (resistive) in C?

Best regards,

Maximilius
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This message was ported from CCS's old forum
Original Post ID: 11749

[Hans Wedemeyer]

Did you want to do it all in PIC or use a Touch Screen Chip like ADS7843 ?

Using the ADS7843 is easy. Then comes the question what do you want to do with the touch screen.

Several designs emulate a mouse, other use simple "Soft Zones" to control turn key appications.

I did a design for Soft Zones, sorry I can't publish the code as someone else paid me to write it for them, which means I don't own it !
However it was as simple as handling the interrupt from the AD7843 and converting the data to X,Y values. In the design I did, the data ended up in the PC via a CAN bus connection.
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This message was ported from CCS's old forum
Original Post ID: 11755

[s.nadir]

i've a problem using ads7843, can i have a simple routine for reading x,y coordinates? my routine retrieve "random" values!

thanks nadir
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