ATQT600 Atmel, ATQT600 Datasheet - Page 150

• Manufacturer Part Number: ATQT600
• Description: KIT EVAL TOUCH FOR QT600
• Manufacturer: Atmel
• Series: QTouch™r

Specifications of ATQT600

• Sensor Type: Touch Screen
• Interface: USB
• Embedded: Yes, Other
• Utilized Ic / Part: ATtiny88, ATmega324PA, ATxmega128A1
• Processor To Be Evaluated: ATtiny88, ATmega324, ATxmega128
• Data Bus Width: 8 bit, 16 bit
• Interface Type: USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 1.6 V to 3.6 V
• Silicon Manufacturer: Atmel
• Kit Application Type: Sensor
• Application Sub Type: Touch Sensor
• Kit Contents: USB Bridge, MCU Cards, Touchpad Cards
• Svhc: No SVHC (15-Dec-2010)
• Mcu Supported Families: ATtiny88,
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

6.3.17.1.11 touch_qm_sensor_get_delta
Arguments
sensor_id
p_delta
6.3.17.2
This section lists the functions that are specific to QTouch Group A/B method of acquisition.
6.3.17.2.1 touch_qt_sensors_init
Arguments
touch_qt_grp
p_touch_config
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The QMatrix number of channels, sensors and rotors/slider indicate the total number of
channels, sensors and rotor/slider in use irrespective of Touch measured being disabled
or enabled. (Disabling and Re-enabling of a Sensor using the
touch_qm_sensor_upate_burstlen API does not alter these values).
touch_ret_t touch_qm_sensor_get_delta(
This API retrieves the delta information associated with a specific QMatrix sensor. Delta
is the difference between the current signal value and reference value.
The user must provide the sensor ID whose delta is sought along with a valid pointer to a
Delta variable.
The API updates the delta variable associated with the requested sensor.
touch_ret_t touch_qt_sensors_init (touch_qt_grp_t touch_qt_grp,
This API initializes the Touch library for QTouch Group A or QTouch Group B method
acquisition. This API has to be called before calling any other QTouch API.
Based on the input parameters, the CAT module is initialized with QTouch method Pin
and Register configuration.
The p_qta_config/p_qta_config (based on whether Group A is used or Group B is used)
and 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.
Type
sensor_id_t
touch_delta_t*
QTouch Group A and QTouch Group B API
Type
touch_qt_grp_t
touch_config_t*
Comment
Sensor ID for which the delta needs to be retrieved.
Pointer to Delta variable, that will be update by the Touch Library
Comment
Specify if the operation is to be performed on Group A
Sensors or Group B Sensors.
Pointer to Touch Library input configuration structure. The
p_qta_config/p_qtb_config (based on whether Group A is
used or Group B is used) and p_general_config members of
the Structure should be non-NULL.
sensor_id_t sensor_id,
touch_delta_t *p_delta)
touch_config_t *p_touch_config)
8207J-AT42-02/11