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TSC2007: TSC2007 touch location response is incorrected

Part Number: TSC2007

Hi Team,

my customer used TSC2007 for their resistance touch screen control, they found sometimes the touch location response is not correct, for example, when they touch to MENU icon, but the screen response to HDCP icon(please refer to the attached pictures for reference), when problem happen, it's randomly response to incorrect icon.

Attached is their C code and schematic, please help to review it and give us your advise or comments what would be the problem root cause? Thanks.




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