ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 146
ATAVRQTOUCHX
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
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6.3.17.1.3 touch_qm_sensor_update_config
6.3.17.1.2 touch_qm_sensor_config
Arguments
sensor_type
from_channel
to_channel
aks_group
detect_threshold
detect_hysteresis
position_resolution
position_hysteresis
p_sensor_id
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Based on the input parameters, the CAT module is initialized with QMatrix method Pin
and Register configuration.
The Analog comparators necessary for QMatrix operation are initialized by this API.
Both p_qm_config & p_general_config members of the input configuration structure must
point to valid configuration data.
The General configuration data provided by the p_general_config pointer is common to
both QMatrix, QTouch Group A, QTouch Group B and Autonomous Touch sensors.
touch_ret_t touch_qm_sensor_config(
This API configures a single QMatrix Key, Rotor or Slider.
The user must provide all the sensor specific settings as input to this API.
Rotor / Slider sensor will occupy contiguous channels from from_channel to to_channel.
For QMatrix acquisition method, 3 to 8 Touch channels per rotor / slider are supported.
Keys are always formed using 1 Touch channel.
touch_ret_t touch_qm_sensor_update_config(
Type
sensor_type_t
channel_t
channel_t
aks_group_t
threshold_t
hysteresis_t
resolution_t
uint8_t
sensor_id_t*
Comment
Specifies sensor type – SENSOR_TYPE_KEY or
The SENSOR_TYPE_UNASSIGNED enum is not a valid
Start channel of the Sensor (rotor, slider or key).
End channel of the Sensor (rotor, slider or key). For a key,
AKS group of this sensor.
Touch Detect threshold level for Sensor.
Value for detection hysteresis.
Position resolution when configuring rotor / slider
Position hysteresis when configuring rotor / slider
The Sensor ID is updated by the Touch Library upon
successful sensor configuration. The Sensor ID starts with
0.
the start and end channels must be the same.
sensor_type_t sensor_type,
channel_t
channel_t
aks_group_t
threshold_t
resolution_t
uint8_t
sensor_id_t
hysteresis_t
SENSOR_TYPE_ROTOR or
SENSOR_TYPE_SLIDER.
input to this API.
from_channel,
to_channel,
aks_group,
detect_threshold,
detect_hysteresis,
position_resolution,
position_hysteresis,
*p_sensor_id)
8207J-AT42-02/11
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