ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 133

• 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

Values
RAW_ACQ_MODE
NORMAL_ACQ_MODE
6.3.15.2.4 sensor_type_t
Enumeration
Use
Values
SENSOR_TYPE_UNASSIGNED
SENSOR_TYPE_KEY
SENSOR_TYPE_ROTOR
SENSOR_TYPE_SLIDER
6.3.15.2.5 aks_group_t
Enumeration
Use
Values
NO_AKS_GROUP
AKS_GROUP_1
AKS_GROUP_2
AKS_GROUP_3
AKS_GROUP_4
AKS_GROUP_5
AKS_GROUP_6
AKS_GROUP_7
6.3.15.2.6 hysteresis_t
Enumeration
Use
Hysteresis_t
Defines the sensor detection hysteresis value. This is expressed as a
percentage of the sensor detection threshold.
This is configurable per sensor.
HYST_x = hysteresis value is x percent of detection threshold value (rounded
down).
Note that a minimum value of 2 is used as a hard limit. Example: if detection
threshold = 20, then:
HYST_50 = 10 (50 percent of 20)
HYST_25 = 5 (25 percent of 20)
sensor_type_t
Define the type of the sensor
aks_group_t
Defines the Adjacent Key Suppression (AKS) groups that each sensor may be
associated with
AKS™ is selectable by the system designer
7 AKS groups are supported by the library
Comment
When Raw acquisition mode is used, the measure_complete_callback
function is called immediately once fresh values of Signals are
available. In this mode, the Touch Library does not do any processing
on the Signals.
position values are not updated in this mode.
When
measure_complete_callback function is called only after the Touch
Library completes processing of the Signal values obtained. The
References, Sensor states and Rotor/Slider position values are
updated in this mode.
Comment
No AKS group is selected for the sensor
AKS Group number 1
AKS Group number 2
AKS Group number 3
AKS Group number 4
AKS Group number 5
AKS Group number 6
AKS Group number 7
Nomal
So, the references, Sensor states or Rotor/Slider
Comment
Channel is not assigned to any sensor
Sensor is a key
Sensor is a rotor
Sensor is a slider
acquisition
mode
is
used,
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the