IQS316EV01S Azoteq, IQS316EV01S Datasheet - Page 4

• Manufacturer Part Number: IQS316EV01S
• Description: Touch Sensor Development Tools IQS316 Eval Kit 01
• Manufacturer: Azoteq

Specifications of IQS316EV01S

• Rohs: yes
• Interface Type: I2C, SPI

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3.2.1 Example (See Figure 3.4 and Figure 3.5):
Copyright © Azoteq (Pty) Ltd 2010.
All Rights Reserved.
and ATI compensation settings can be modified by reading and adjusting the values as
necessary, or
well as Touch, under “ATI
(i) To change the touch threshold on individual channels, click on “Read Thres”. This
will display the current settings.
question by selecting the desired value from the drop down box, and click on “Write
Thres” as indicated in Figure 3.4.
(ii) To change the base value of current samples that the Auto-ATI algorithm tunes the
touch channels to, enter a new value under “ATI Settings:” (500 in the example).
Under “ATI Settings:” click on “Send”. Whenever “Auto-ATI” is clicked on, the algorithm
will retune the current samples to the selected base value. Lower base values: More
stable, faster response times. Higher base values: More sensitive.
(iii) To make one or more channels more sensitive, the ATI compensation parameter
can be adjusted as follows (See Figure 3.5). Under “ATI Comp” click on “Read” to
display the current compensation values. Enter a new value between 0 and 63 for the
channel that is to be adjusted, and click on “Write”. A higher compensation value will
yield higher current samples, and thus will make the channel more sensitive.
Figure 3.4
by utilizing the “Auto-ATI” function for automatic ATI selection for Prox as
Adjusting individual channel thresholds
Settings:”.
ProxSense
IQ Switch
IQS316EV01 Evaluation Kit User Manual
Change the threshold setting of the channel in
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Series
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Revision 1.1
January 2012
Page 4 of 8
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