Atmel QTouch Library User Guide

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CAT Module Pin NameCSA0CSB0CSA1CSB1CSA2CSB2CSA3CSB3CSA4CSB4CSA5CSB5CSA6CSB6CSA7CSB7CSA8CSB8CSA9CSB9CSA10CSB10CSA11CSB11CSA12CSB12CSA13CSB13CSA14CSB14CSA15CSB15CSA16CSB16QTouch method Pin NameSNS0SNSK0SNS1SNSK1SNS2SNSK2SNS3SNSK3SNS4SNSK4SNS5SNSK5SNS6SNSK6SNS7SNSK7SNS8SNSK8SNS9SNSK9SNS10SNSK10SNS11SNSK11SNS12SNSK12SNS13SNSK13SNS14SNSK14SNS15SNSK15SNS16SNSK16Table 11 QTouch Resistive drive pin option(The rows marked with Grey indicate that Resistive Drive option is not available on that pin.)QTouch Group A/B method Schematic for UC3LResistive Drive optionThe cases A and B of the Figure provide the schematic arrangement of QTouch Group A/B andAutonomous QTouch Sensors. In option A, Resistive drive is enabled on SNSK line. In case B,Resistive drive is disabled on the SNSK line and in this case, it is recommended to use 1kOhmresistors on SNSK Line external to the UC3L device.SYNC pin optionIn order to prevent interference from the 50 or 60 Hz mains line the CAT can optionally triggerQTouch Group A/B and Autonomous QTouch acquisition on the external SYNC input signal. TheSYNC signal should be derived from the mains line and the acquisition will trigger on a falling1268207K-AT42-09/11
edge of this signal. The SYNC pin usage in the Internal Discharge mode scenario is shown incase C. For QTouch method SYNC pin options Refer to Section 6.3.15.2.13.A. QTouch Group A/B and Autonomous QTouch arrangement.Resistive drive enabled on SNSK Line.B. QTouch Group A/B and Autonomous QTouch arrangement.Resistive drive disabled on SNSK Line.AtmelAT32UC3LSNSKSensorAtmelAT32UC3LSNSKRsSensorCATModuleCsCATModuleCsSNSSNSTypical Values:Cs: 22nFTypical Values:Cs: 22nF, Rs:1kOhmPin requirements:SNS: CAT QTouch method I/O pinSNSK: CAT QTouch method I/O pinC. QTouch Group A/B and Autonomous QTouch arrangement.Resistive drive enabled on SNSK Line.External Synchronization enabled.Pin requirements:SNS: CAT QTouch method I/O pinSNSK: CAT QTouch method I/O pinAtmelAT32UC3LSNSKSensorCATModuleCsSNSSYNCSyncsignalTypical Values:Cs: 22nFPin requirements:SNS: CAT QTouch method I/O pinSNSK: CAT QTouch method I/O pinSYNC: CAT-SYNC I/O pinFigure 40 QTouch Group A/B and Autonomous QTouch schematicarrangementQTouch Group A/B method hardware resource requirement for UC3LThe clock for the CAT module, CLK_CAT, is generated by the Power Manager (PM). This clock isturned on by default, and can be enabled and disabled in the PM. The user must ensure thatCLK_CAT is enabled before initializing the QTouch Library.127
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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
Page 76 and 77: Figure 5-20 : Specifying QMatrix ac
Page 78 and 79: Debug Support in Example applicatio
Page 80 and 81: Support for different compiler tool
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 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 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
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
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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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