CY3280-28XXX Universal CapSense® Controller Development Kit Guide, Spec. # 001-57457 Rev. **
11
Quick Start
2.2
Using the Board as Factory Programmed
The CY3280-28XXX board is preprogrammed with demonstration firmware. When powered by a
PSoC MiniProg, a CY3240-I2USB Bridge, or an optional external power supply, the LEDs light up
when a finger touches one of the buttons.
These instructions assume that your board has not been reprogrammed from the factory settings. If
it has, and you would like to follow along with this demonstration, follow the instructions in section
2.2.3 Resetting the Board to the Original Factory Programming on page 12
. Start this example with
2.2.1 Powering the Board
.
2.2.1
Powering the Board
1. Connect CY3280-SLM Universal CapSense Linear Slider Module Board.
ESD protection circuitry is
not included.
Development/evaluation
platform without consis-
tent overlay is inherently
vulnerable to ESD events
Direct or air-separated
ESD testing may impair
operation or damage cir-
cuitry. ±2 kV limit on PSoC
pins (see data sheet).
Include an overlay and
ESD protection circuitry.
User Module Parameters
set to supplied overlay
thicknesses.
Projects optimized for
supplied hardware.
Sensitivity may not be
high enough for very thick
overlays.
Thicker overlays may
require verification of
parameters to ensure
proper operation.
Unused pins are not
routed directly to GND.
Pins brought out to con-
nector for subsequent
modules or custom
designs.
Possible noise path.
Tie unused sensing traces
directly to ground.
0
Ω
resistors populated
throughout.
Universality of the board
enabled by population/
depopulation of 0
Ω
resis-
tors
Solder pads of 0
Ω
resis-
tors increase parasitic
capacitance.
Route traces directly to
sensing elements. Use as
few 0
Ω
resistors as possi-
ble
Table 2-1. Design Features in Universal CapSense Controller
(continued)
Design Features
Reason for Feature
Impact
Recommended Change
[+] Feedback
