ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 174

• 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

7.5.2.2.2
1. Enable the Bit0 in SNS_array[0] and Bit1 in SNSK_array[0] mask when enabling Channel0.
2. Enable the Bit2 in SNS_array[0] and Bit3 in SNSK_array[0] mask when enabling Channel1.
3. Enable the Bit4 in SNS_array[0] and Bit5 in SNSK_array[0] mask when enabling Channel2.
4. Enable the Bit6 in SNS_array[0] and Bit7 in SNSK_array[0] mask when enabling Channel3.
Example 1:
In a 4 channel library, two keys on channel 0 and 3 are enabled.SNS and SNSK on Port B
.Channel0 will B0B1 and Channel3 will be B6B7.
The SNS and SNSK masks will be
SNS_array[0]=0x41;
SNS_array[1]=0x00;
SNSK_array[0]=0x82;
SNSK_array[1]=0x00;
7.5.3
In order to Integrate QTouch libraries for 2K devices, the constants and symbol names listed in
Table 1
compiler/assembler preprocessing definitions or in the touch_t_config_2kdegice.h file. Example
projects are provided for all the four devices supported.Refer 5.6.10.1 for directory structure of all
the files.
Symbol / Constant name
_QTOUCH_
SNS & SNSK
_SNS_SNSK_SAME_PORT_
QT_NUM_CHANNELS
QT_DELAY_CYCLES
QTOUCH_STUDIO_MASKS
174
Integrating QTouch libraries for 2K Devices in your application
below need to be defined in the user application. These can be defined in either the
Table 1: Constant and symbol name definitions required to use the QTouch
acquisition method libraries for 2K device libraries
Configuring SNS and SNSK masks in case of Intraport:
Range of values
This macro has to be defined in order to
use QTouch libraries.
Refer to library selection guide.
Comment/uncomment define
1, 2 and 4 for 2K device libraries.
This macro has to be defined in order to
use QTouch libraries for 2K devices.
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8207J-AT42-02/11
Comments
To be enabled if the
same port is used for
SNSK and SNS pins
for QTouch. If SNSK
and SNS pins are on
different
this definition is not
required.
Please refer to section
5.6.8.
SNS_array
SNSK_array
variablesare initialized
under this Macro in
main file.Refer section
7.5.2.2
ports
masks
then
and