Atmel QTouch Library User Guide

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TOUCH_STATUS_CHANGE 0x0002u Status change in at least one channel.TOUCH_ROTOR_SLIDER_POS_CHANGE 0x0004u At least one rotor or slider has changedposition.TOUCH_CHANNEL_REF_CHANGE 0x0008u Reference values of at least one of thechannel has changed.TOUCH_BURST_AGAIN 0x0100u Indicates that reburst is required toresolve Filtering or Calibration state.TOUCH_RESOLVE_CAL 0x0200u Indicates that reburst is needed toresolve Calibration.TOUCH_RESOLVE_FILTERIN 0x0400u Indicates that reburst is needed toresolve Filtering.TOUCH_RESOLVE_DI 0x0800u Indicates that reburst is needed toresolve Detect Integration.TOUCH_RESOLVE_POS_RECAL 0x1000u Indicates that reburst is needed toresolve Recalibration.touch_qt_grp_tuint8_tUsetouch_qt_grp_tQTouch Group type.Values Value CommentTOUCH_QT_GRP_A 0u QTouch Group A.TOUCH_QT_GRP_B 1u QTouch Group B.EnumerationsThis section lists the enumerations used in the QTouch Library.touch_ret_tEnumerationUsetouch_ret_tIndicates the Touch Library error code.ValuesTOUCH_SUCCESSTOUCH_ACQ_INCOMPLETETOUCH_INVALID_INPUT_PARAMTOUCH_INVALID_LIB_STATETOUCH_INVALID_QM_CONFIG_PARAMTOUCH_INVALID_AT_CONFIG_PARAMTOUCH_INVALID_QT_CONFIG_PARAMTOUCH_INVALID_GENERAL_CONFIG_PARAMTOUCH_INVALID_QM_NUM_X_LINESTOUCH_INVALID_QM_NUM_Y_LINESCommentSuccessful completion of operation.Touch Library is busy with pending previousTouch measurement.Invalid input parameter.Operation not allowed in the current TouchLibrary state.Invalid QMatrix config input parameter.Invalid Autonomous Touch config inputparameter.Invalid QTouch config input parameter.Invalid General config input parameter.Mismatch between number of X linesspecified as QM_NUM_X_LINES andnumber of X lines enabled in QMatrix pinconfiguration touch_qm_pin_t x_lines.Mismatch between number of Y lines1408207K-AT42-09/11
TOUCH_INVALID_QM_NUM_SENSORSTOUCH_INVALID_MAXDEV_VALUETOUCH_INVALID_RECAL_THRESHOLDTOUCH_INVALID_CHANNEL_NUMTOUCH_INVALID_SENSOR_TYPETOUCH_INVALID_SENSOR_IDTOUCH_INVALID_DMA_PARAMTOUCH_FAILURE_ANALOG_COMPTOUCH_INVALID_RS_NUMspecified as QM_NUM_Y_LINES andnumber of Y lines enabled in QMatrix pinconfiguration touch_qm_pin_t y_yk_lines.Number of Sensors specified is greater than(Number of X Lines * Number of Y Lines).Spread spectrum MAXDEV value should notexceed (2*DIV + 1).Invalid Recalibration threshold input value.Channel number parameter exceeded totalnumber of channels configured.Invalid sensor type. Sensor type can NOT beSENSOR_TYPE_UNASSIGNED.Invalid Sensor number parameter.DMA Channel numbers are out of range.Analog comparator configuration error.Number of Rotor/Sliders set as 0, when tryingto configure a rotor/slider.touch_lib_state_tEnumerationUsetouch_lib_state_tIndicates the current state of the library with respect to a specific acquisitionmethodValuesTOUCH_LIB_STATE_NULLTOUCH_LIB_STATE_INITTOUCH_LIB_STATE_READYTOUCH_LIB_STATE_CALIBRATETOUCH_LIB_STATE_BUSYCommentLibrary is not yet initialized for the specific acquisitionmethodLibrary is initialized, sensor configuration and calibration isnot yet done.Library is ready for a new acquisition in the specific methodLibrary requires re-calibration before acquisition can bedone for the specific acquisition methodLibrary is busy with acquisition & processing for the specificacquisition methodtouch_acq_mode_tEnumerationUsetouch_acq_mode_tTouch library acquisition mode type.ValuesCommentRAW_ACQ_MODE When Raw acquisition mode is used, the measure_complete_callbackfunction is called immediately once fresh values of Signals areavailable. In this mode, the Touch Library does not do any processingon the Signals. So, the references, Sensor states or Rotor/Sliderposition values are not updated in this mode.NORMAL_ACQ_MODE When Nomal acquisition mode is used, themeasure_complete_callback function is called only after the TouchLibrary completes processing of the Signal values obtained. TheReferences, Sensor states and Rotor/Slider position values areupdated in this mode.141
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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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definition is not required.QT_NUM_C
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SNS1 and SNSK1 pins usethe same por
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• It is recommended to disable PU
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Table 4 :List of configurable param
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Number ofchannels requiredfor the a
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2. The above definitions should be
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NUM_Y_LINES_ROTOR_SLIDER_QT_MAX_NUM
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has Four Comparators (AC0A , AC1A ,
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Note: When using the IAR IDE / comp
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Figure 5-11: Selecting the right co
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SNS1 - SNSK1 & SNS2 -SNSK2QT_NUM_CH
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Selecting the right configurationTh
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Figure 5-20 : Specifying QMatrix ac
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Debug Support in Example applicatio
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Support for different compiler tool
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Maximum number of rotor / sliders s
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Tips on pin assignments for the sen
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ATtiny88)v1g1s2(ATtiny461,ATmega16a
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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 102 and 103: 2. QTOUCH_STUDIO_MASKS needs to be
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 142 and 143: sensor_type_tEnumerationUsesensor_t
Page 144 and 145: OUT_OF_TOUCHIN_TOUCHCurrently the a
Page 146 and 147: num_channel_signals uint8_t Length
Page 148 and 149: touch_at_statusstructureInput / Out
Page 150 and 151: UseData structure which holds the R
Page 152 and 153: variable to the Touch library. The
Page 154 and 155: structure.p_qta_config touch_qt_con
Page 156 and 157: p_touch_sensor_param touch_qm_param
Page 158 and 159: current_time_ms touch_time_t Curren
Page 160 and 161: touch_ret_t touch_qt_sensor_config(
Page 162 and 163: touch_qt_sensors_calibratetouch_ret
Page 164 and 165: touch_qt_get_libinfotouch_ret_t tou
Page 166 and 167: • This API updates the configurat
Page 168 and 169: Rule Rule Description Advisory/Requ
Page 170 and 171: VCCPA0No ConnectionPA1PA2ATtiny20PA
Page 172 and 173: QTouch Library configuration parame
Page 174 and 175: Recommended setting.Table 19 QTouch
Page 176 and 177: Figure 51 Schematic overview of QTo
Page 178 and 179: QTouch Library configuration parame
Page 180 and 181: Devices supportedThe list of differ
Page 182 and 183: • The channel number is derived f
Page 184 and 185: MISRA Compliance ReportThis section
Page 186 and 187: May 2010Ver 4.2July 2010Ver 4.3Jan
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Atmel QTouch Library User Guide

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