ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 153

• 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

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