Cypress CY3203-CapSense Краткое руководство по эксплуатации - Страница 15
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Tune a CapSense Project
Note: A CY3240 I
chase one online by going to http://www.cypress.com/design/DK10063, and clicking Buy Online.
The goal of tuning a capacitive sensing application is to adjust the sensitivity of the buttons or slider so that
they accurately detect finger presses. This involves determining which raw counts coming from the sensor
are actual finger presses, or if it is some other stimuli that changes the raw count.
Detailed tuning information is available in the CapSense Guide. In PSoC Express, select Help
mentation, and select CapSense Guide.
Open You PSoC Express Project
4.1.
In PSoC Express, if the project from the previous example is closed, select MyExpressProject in the
Recent Project pane (or click browse and open the project).
4.2.
If you are not in the Design view, click Design
2
Add an I
C Slave Driver to Your Design
4.3.
In the Driver Catalog pane, go to Interfaces
design.
4.4.
In the Add Interface window, name the driver I2CSlave and click OK.
Build the Project
4.5.
Select Build
4.6.
In the PSoC Device Configuration Selection window, select the CY8C20434, 32-Pin QFN part in the
Available Device Configurations pane.
4.7.
Ensure the Assign pins automatically check box is NOT selected.
4.8.
Click Next.
CY3203A-CapSense Quick Start Guide, Spec. # 001-17826 Rev. *A
2
C Bridge is needed for CapSense Tuning. If you do not have an I
Generate/Build 'MyExpressProject' Project
.
Communication
I2C, and add a Slave driver to your
2
C Bridge board, pur-
→
Docu-
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