Cypress Semiconductor CY3280-MBR3 用户手册
CY3280-MBR3 Evaluation Kit User Guide, Doc. #: 001-89905 Rev. *B
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Kit Operation
Figure 3-21. SW3 Slide Switch in Long Trace Position
3. Using the additional 1-mm overlay provided with the kit, as shown in
a. Power on the kit using USB or an external power supply on pin 4 of the J1 header.
b. Touch BTN1 on the kit. The LED corresponding to BTN1 will turn on, providing visual feed-
back on each touch.
c. Place the additional 1-mm overlay, provided with the kit, on top of the board and press the
reset switch, SW2, to reset the board.
d. Touch BTN1 on the kit; the corresponding LED works normally and provides visual feedback.
This demonstrates the SmartSense Auto-Tuning algorithm, which automatically tunes for the
increase in CapSense button capacitance due to an increase in overlay thickness.
increase in CapSense button capacitance due to an increase in overlay thickness.