ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 153
![BOARD EVAL CAPACITIVE TOUCH](/photos/9/17/91788/atavrqtouchx_sml.jpg)
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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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATAVRQTOUCHX
Manufacturer:
Atmel
Quantity:
135
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6.3.17.2.7 touch_qt_sensors_calibrate
Arguments
touch_qt_grp
6.3.17.2.8 touch_qt_sensors_start_acquisition
Arguments
touch_qt_grp
current_time_ms
p_touch_dma
qt_acq_mode
void
(*measure_complete_callback)(
void )
•
touch_ret_t touch_qt_sensors_calibrate(touch_qt_grp_t touch_qt_grp )
•
•
•
•
This API can be called to retrieve the QTouch Group A or Group B global parameters.
This API can be used to calibrate all configured Sensors.
Calibration of all Sensors must be performed when –
touch_ret_t touch_qt_sensors_start_acquisition(touch_qt_grp_t touch_qt_grp,
void (*measure_complete_callback)( touch_measure_data_t *p_measure_data ))
This API initiates a capacitive measurement on all enabled QTouch Group A or Group B
sensors depending on the touch_qt_grp specified.
When normal acquisition mode is used, once the Touch measurement is completed on all
the QTouch sensors, before processing the raw acquisition data (channel_signals), a
filter_callback function is optionally called by the Touch Library.
o
o
All the Sensors have been configured using touch_sensor_config API after
initialization of the Touch Library.
A sensor or a group of Sensors have been disabled or re-enabled.
Type
touch_qt_grp_t
touch_time_t
touch_qt_dma_t*
touch_acq_mode_t
void
(*measure_complete_callback)(
touch_measure_data_t
*p_measure_data)
Type
touch_qt_grp_t
touch_acq_mode_t qt_acq_mode,
touch_qt_dma_t *p_touch_dma,
touch_time_t current_time_ms,
Comment
Specify if the operation is to be
performed on Group A Sensors or
Group B Sensors.
Comment
Specify if the operation
is to be performed on
Group A Sensors or
Group B Sensors.
Current time in ms
DMA channels to be
used for transfer to burst
length & acquisition
count
Specify whether Normal
acquisition mode or
Raw acquisition mode
should be done.
QTouch Group A or
Group B Measure
complete callback
function pointer
153
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