Atmel QTouch Library User Guide

X0,X1,X2,X3 are on PB0,PB1,PB2,PB3NY 1,2,3,4,7,8 Indicates the number of Y-Lines that the library needsfor supporting the listed number of channelsCFGkkrsNY=7 support only for ATXmega DevicesNY=3 support only for 32Bit Devicesk – library variant supports only keyskrs – library variant supports keys, Rotors and SlidersNRS 0,1,2,3,4,8 Maximum number of rotor sliders that the librarysupports.NRS=3 support only for 32Bit DevicesThe table below provides a few examples of the naming convention.Example Library nameConfiguration supportedlibavr51g2_8qm_4x_2y_krs_2rs.a • Compiler tool chain : GCC• Device : ATMega164P• 8 Channels• 4 X lines• 2 Y lines• Supports Keys, Rotors and Sliders ( krs )• 2 Rotors and Sliderslibavr25g1s1_16qm_8x_2y_k_0rs.r90 • Compiler tool chain : IAR• Device : ATTiny88• 16 Channels• 8 X lines• 2 Y lines• Supports only keys ( k)• 0 Rotors and SlidersQMatrix acquisition method library variantsDevices supported for QMatrix AcquisitionRefer to the Library_selection_guide.xls for the list of devices supported for QMatrix for thisrelease.PIN Configuration for QTouch LibrariesPin Configuration for QTouch Acquisition MethodPin configurability for QTouch acquisition method is provided for 8Bit AVR’s. QTouchacquisition method libraries can be used to configure SNS and SNSK on any pins of theport. But few rules should be followed while assigning the SNS and SNSK on particularpins. These rules are internal to the library. But QTouch Studio –Pin Configuration Wizardcan be used to assign SNS and SNSK on the pins and rules are internally taken care in theQTouch Studio Pin Configuration Wizard.By default, for 4 and 8 channel QTouch acquisition libraries, the channel numbering followsthe pin number of the port.To use the pin configurability, enable the macro _STATIC_PORT_PIN_CONF_ in theproject options or define the macro in the touch_qt_config.h file.To use the pin configurability feature, the SNS_array and SNSK_array masks are exportedfor the user, which needs to be initialized. These SNS_array and SNSK_array masks can888207K-AT42-09/11