ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 48

• Manufacturer Part Number: ATAVRQTOUCHX
• Description: BOARD EVAL CAPACITIVE TOUCH
• Manufacturer: Atmel
• Series: QTouch™r

Specifications of ATAVRQTOUCHX

• Sensor Type: Touch, Capacitive
• Sensing Range: 1 Slider, 1 Wheel, 2 Buttons
• Interface: USB
• Voltage - Supply: 5V, USB
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: AT90USB1287, ATxmega128A1
• Silicon Manufacturer: Atmel
• Silicon Family Name: ATxmega
• Kit Contents: Board
• Svhc: No SVHC (15-Dec-2010)
• Core Architecture: AVR
• Core Sub-architecture: AVR19
• Kit Features: One Slider, One Wheel And 2
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Table 3 : Constant and symbol name definitions required to use the QTouch acquisition
method libraries
Symbol / Constant name
_QTOUCH_
SNS1 & SNSK1
SNS1 – SNSK1
&
SNS2 – SNSK2
_SNS1_SNSK1_SAME_PORT_
_SNS2_SNSK2_SAME_PORT_
QT_NUM_CHANNELS
48
1) QTouch acquisition method library variants are offered for IAR and AVR Studio/GCC tool
2) Define the constants and symbol names required
chains. First step is to select the compiler tool chain to be used based on the code and
data memory requirements. The list of supported compiler tool chains can be found in
5.7.1.2.
Use the library selection guide (C:\ Program Files\Atmel\Atmel_QTouch_Libaries_4.x\
Library_Selection_Guide.xls) to select the QTouch acquisition method library variant
required for the device.
a. There are specific library variants distributed for each microcontroller. You would
b. There are specific variants of the library which is pre-built with a specific
a. The next step is to define certain constants and symbols required in the host
b. The constant/symbol names are as listed in the table below.
c. The constant/symbol definitions can be placed in any of the following.
need the following parameters to identify the right library variant to be used in
your application
configuration set supported. Use the library selection guide (C:\ Program
Files\Atmel\ Atmel_QTouch_Libaries_4.x\Library_Selection_Guide.xls) to find the
sample project using the QTouch acquisition method library variant.
application files where the touch API is going to be used.
iv. Whether Rotor and/or Slider support required in the application.
iii. The number of channels you need for the application.
v. The number of rotors and/or slider needed for the application.
ii. The acquisition method to be used for the application.
ii. As an alternative, it is also declared in the touch_qt_config.h file. The
i. The microcontroller to be used for the application.
i. Defined user’s project options. All the constants/symbols must be defined
for both the compiler and assembler preprocessing definitions.
user may modify these defined values based on the requirements.
Range of values
This macro has to be defined in
order to use QTouch libraries.
Refer to library selection guide.
Comment/uncomment define
Comment/uncomment define
4, 8, 12, 16 for tinyAVR,
megaAVR and XMEGA device
Refer to library selection guide.
Comments
To be used if only single
port pair is needed for the
design.
To be used if two port pairs
are needed for the design.
To be enabled if the same
port is used for SNSK1 and
SNS1 pins for QTouch. If
SNSK1 and SNS1 pins are
on different ports then this
definition is not required.
To be enabled if the same
port is used for SNSK2 and
SNS2 pins for QTouch. If
SNSK1 and SNS1 pins are
on different ports then this
definition is not required.
8207J-AT42-02/11