Atmel QTouch Library User Guide

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2. QTOUCH_STUDIO_MASKS needs to be enabled if using pin configurability .If not enabledthen, static pin mapping will work same as in the earlier versions of the librariesPin Configuration for QMatrix Acquisition MethodThe QMatrix acquisition method libraries needs to be used after configuring X and YA andYB lines on IO pins of the port as described in the configuration rules described in thesection below. The QTouch Studio Pin Configurator Wizard can be used to assign X, YA,YB, SMP lines on the pins and rules are internally taken care in the Qtouch Studio PinConfigurator Wizard.The snippets can be taken from the QTouch Studio Pin Configurator Wizard and copied toappropriate places in the main.c and touch_qm_config.h files in the example projectsprovided.Configuration Rules:1. The X lines can be configured on different ports up to a maximum of 3 portsEx: NUM_X_PORTS = 3 (maximum value supported). However the possible valuesare NUM_X_PORTS = 1 or NUM_X_PORTS = 2 or NUM_X_PORTS = 32. The X lines can be configured on the three different ports.3. The X lines can be configured on any pins of the ports selected aboveEx: X0 on PB2, X1 on PD5, X2 on PE0, X3 on PD1( when NUM_X_LINES= 4),Provided that these pins do not conflict with the other pins for touch sensing or with thehost application usage.Note:4. The Y lines can be configured on the any of the pins of the ports selectedEx: Any pins on the PORT_YA and PORT_YB selected.Suppose, PORT_YA is D, and PORT_YB is CSince, pin 5 and pin 1 PORTD are already used for X lines(X1, X3), the user can selectany of the remaining pins for Y0A lines. Suppose that Y0 is on pin2 and Y1 is on pin6Hence, Y0A – PD2, Y0B – PC2, Y1A – PD6, Y1B – PC6,5. Both YA and YB lines can share the same port. And the YA and YB need not be on samecorresponding pins of the ports.6. The PORT_YB is fixed for each device and should be same as the PORT on which theADC input pins are available.7. The SMP pin can be configured on any of the IO PORT pins available.Ex:PORT_SMP = DSMP_PIN = 7 as this pin is not being used by touch sensing.‣ Please take care that the touch sensing pins do not conflict with other IO pins used by hostapplication1028207K-AT42-09/11
How to use QTouch Studio for Pin Configurability:The following steps describe the details on how to use pin configurability for QMatixAcquisition method:1. Open AVR Qtouch Studio .Enable the Design Mode Radio button on the left handside of the screen..Figure 5-37: Selecting the Design mode in the AVR QTouch Studio2. Go to File Menu option and click New Design103
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Atmel QTouch LibraryUser GuideSuppo
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5.6.11.6.1 Debug Support in the sam
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6.3.16.21 touch_info_t ............
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• ARM: refers to a device in the
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Libraries for AVR microcontrollers
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QMatrix charge transfer is labeled
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Maximum ON DurationIf an object uni
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Setting Variable name Data Type Uni
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Guard ChannelGuard channel in Qtouc
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7 AKS groups are supported by the l
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Data structuresThis section lists t
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The signal gain for each sensor is
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• This function can be called any
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unit16_t qt_measure_sensors( uint16
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Channel NumberingChannel numbering
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qt_reset_sensing()qt_enable_xxx()qt
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Port AAll SNSK pinsterminatedon thi
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Example:Pins A0 ,A3 and A5 of PORT
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Channel 47 N/A N/A N/A N/A N/A X7Y5
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channel 0channel 1channel 2channel
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Disabling and Enabling of Pull-up f
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‣ Recommended threshold should be
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QMatrix acquisitionmethod libraries
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Page 56 and 57: • It is recommended to disable PU
Page 58 and 59: Table 4 :List of configurable param
Page 60 and 61: Number ofchannels requiredfor the a
Page 62 and 63: 2. The above definitions should be
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Page 68 and 69: Note: When using the IAR IDE / comp
Page 70 and 71: Figure 5-11: Selecting the right co
Page 72 and 73: SNS1 - SNSK1 & SNS2 -SNSK2QT_NUM_CH
Page 74 and 75: Selecting the right configurationTh
Page 76 and 77: Figure 5-20 : Specifying QMatrix ac
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Page 82 and 83: Maximum number of rotor / sliders s
Page 84 and 85: Tips on pin assignments for the sen
Page 86 and 87: ATtiny88)v1g1s2(ATtiny461,ATmega16a
Page 88 and 89: X0,X1,X2,X3 are on PB0,PB1,PB2,PB3N
Page 90 and 91: 1. The channel numbers are allocate
Page 92 and 93: SNSK_array[1][1]=0x00; (SNSK odd ma
Page 94 and 95: SNSK_array[1][0]=0x14; (SNSK even m
Page 96 and 97: Figure 5-28: New Design Sensors in
Page 98 and 99: Figure 5-31: Selecting the MCU for
Page 100 and 101: Figure 5-34: Selecting the SNS and
Page 104 and 105: Figure 5-38: Selecting New Design3.
Page 106 and 107: Figure 5-42: Start window of the co
Page 108 and 109: Figure 5-45: Selecting the X,YA,YB,
Page 110 and 111: The code can be copied using the
Page 112 and 113: ApplicablereleaseQTouch libraries v
Page 114 and 115: Device Specific LibrariesIntroducti
Page 116 and 117: Table 8 Compiler tool chains suppor
Page 118 and 119: maintains the States of QMatrix, QT
Page 120 and 121: equired as shown in the case A of F
Page 122 and 123: Figure 37 QMatrix method schematicQ
Page 124 and 125: Figure 39 QMatrix API Flow diagram
Page 126 and 127: CAT Module Pin NameCSA0CSB0CSA1CSB1
Page 128 and 129: The QTouch method acquisition using
Page 130 and 131: Host Application codeUsing the init
Page 132 and 133: Frozen Stop Stop Run Run Run Run On
Page 134 and 135: Figure 45 Raw acquisition mode API
Page 136 and 137: Figure 46 GNU Example project usage
Page 138 and 139: the QTouch Library as QMatrix data
Page 140 and 141: TOUCH_STATUS_CHANGE 0x0002u Status
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Page 148 and 149: touch_at_statusstructureInput / Out
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variable to the Touch library. The
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structure.p_qta_config touch_qt_con
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p_touch_sensor_param touch_qm_param
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current_time_ms touch_time_t Curren
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touch_ret_t touch_qt_sensor_config(
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touch_qt_sensors_calibratetouch_ret
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touch_qt_get_libinfotouch_ret_t tou
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• This API updates the configurat
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Rule Rule Description Advisory/Requ
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VCCPA0No ConnectionPA1PA2ATtiny20PA
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QTouch Library configuration parame
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Recommended setting.Table 19 QTouch
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Figure 51 Schematic overview of QTo
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QTouch Library configuration parame
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Devices supportedThe list of differ
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• The channel number is derived f
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MISRA Compliance ReportThis section
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May 2010Ver 4.2July 2010Ver 4.3Jan
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Atmel QTouch Library User Guide

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