Amit Mehta

KL16 Change in Captouch count with change in Temperature

Discussion created by Amit Mehta on Jul 2, 2018
Latest reply on Jul 22, 2018 by Amit Mehta

i have added external overlay for captive input, TSI module is configured in auto noise mode. Controller works properly in normal condition but when there is change in temperature value of count decrease with decrease in temperature and increase with increase in temperature. Counter value difference is going beyond 8000 w.r.t. Calibration value.

Is there any way to get touch input while avoiding any false touch input. So that our application can work properly.

Below is configuration done for TSI module :-

 

TSI Module Setup Parameters

Parameter

Value

Scanning Time Per Channel

20ms

Delta Value

2000

Pre-scalar

16

Reference Charge

32uA

NSCN

18

Auto Noise Mode Setup Parameters

Mode

Automatic Noise Mode

Filter Bits

3 filter bits

Series Resistance

32 kΩ

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