ATAVRQTOUCHX Atmel, ATAVRQTOUCHX Datasheet - Page 115

• 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

Using the init_clock() in main.c and clock.c files,
Set the CAT_CLK Clock to appropriate value.
Set the GCLK_CAT Clock to appropriate value.
Using the touch_config_at32uc3l.h configuration file,
Set DEF_TOUCH_QMATRIX = 1.
Set all QM_xx and TOUCH_xx macros to appropriate values.
(This includes 2 peripheral DMA Channels required for QMatrix operation.)
In the main.c file,
Set appropriate qm_burst_length[] values corresponding to all Touch channels .
Set the desired measurement_period_ms for Touch measurement.
Configure multiple
QMatrix sensors
Call in loop
Figure 39 QMatrix API Flow diagram for UC3L
time_to_
measure_touch
acquisition(NORMAL_ACQ_MODE)
touch_qm_sensors_calibrate()
touch_qm_sensors_config()
touch_qm_sensors_start_
touch_event_dispatcher()
touch_qm_sensors_init()
Host Application code
measured data and Touch Status
measure_complete_callback(),
filter_callback(), if enabled
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