Infineon CY7110, Руководство пользователя

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User Guide 33 of 67 002-32601 Rev. *C
2021-12-02
EZ- PD™ PMG1 MCU prototyping kits guide
CY7110/CY7111/CY7112/CY7113
EZ- PD™ PMG1 prototyping kit system design
Figure 28
Reset circuit
3.3.7 CAPSENSE™ buttons and slider
The EZ- PD ™ PMG1- S3 MCU supports Infineon’s c apacitive touch sensing, called CAPSENSE™ . The CY7113 EZ-
PD™ PMG1-S3 MCU prototyping kit has two touch buttons and one 5-sensor slider implemented using the
CAPSENSE™ touch sensing feature. CAPSENSE™ buttons BTN1 and BTN2 are designed to exercise a self-
capacitance-based touch button implementation using. The CAPSENSE™ slider is implemented using five
sensors and also uses self-capacitance sensing.
See the Getting started with CAPSENSE™ design guide for a detailed introduction to CAPSENSE™ and See
PSoC ™ 4 and PSoC ™ 6 MCU CAPSENSE™ design guide for CAPSENSE™ design guidelines.
Each CAPSENSE™ sensor has an associated LED to indicate the status of the sensor. For the CAPSENSE™ button,
the LED corresponding to the button turns ON when the button detects a touch. In the CAPSENSE™ slider, the
LED corresponding to the sensor on which a finger is placed during a sliding action will turn ON. The table
below lists the CAPSENSE™ button, LEDs , and corresponding GPIO.
Table 12 CAPSENSE™ buttons and slider
CAPSENSE™ widget CAPSENSE™
sensor
Sensor GPIO LED LED GPIO
CAPSENSE™ button BTN1 P2.1 LED5 P2.4
BTN2 P2.2 LED6 P2.3
CAPSENSE™ slider SLD1 P6.0 LED7 P5.3
SLD2 P6.1 LED8 P1.4
SLD3 P0.0 LED9 P1.5
SLD4 P6.2 LED10 P1.6
SLD5 P6.3 LED11 P1.3
CAPSENSE™ also requires an external capacitor CMOD for self- capacitance sensing. CAPSENSE™ sensor pads
are connected to the EZ- PD™ PMG1 -S3 MCU through 560 Ω series resistor s placed close to the MCU GPIOs that
are configured as CA PSENSE™ sensor pins. The CAPSENSE™ sensor s on the kit are covered with a transparent
overlay (insulator material) which serves as the touch surface for the sensor below it. The senor pads are
surrounded by grounded-shield electrodes and provide optional provisions for active driven shields which
C41
0.1uF
No Load
RESET
R54
4.7K
SW3
434123025826
1
4
2
3
VDDIO