iDevOS Software General Overview        Update History                             Topics    General Setup   Interface Setup   Page   Data   Timing   Overview Overview RS232 Overview Overview Overview Get Started INT RS485 PAGE LOAD RTC/RTA Prog Tips RESET Async POSN VAR Counters Prog Guide System SPI TEXT STRUCT Timers Fonts LIB I2C DRAW FILE WAIT Colours FPROG USB IMG CALC LOOP Arrays INC Keyio KEY RUN     Format Data Styles Rotary Encoder Page Loop FUNC     Inline Functions DEL ADC SHOW, HIDE IF Software   CANBUS Touch PWM Refresh;; CASE Specification MODBUS     AC97     EXIT

Command SETUP(TOUCH)   Description Setup The Touch settings for Resistive, Projective Capacitive or Immediate Touch Projected Capacitive Touch - Suitable with glass (up to 4mm thick) and plastic (up to 1.5mm thick) overlay Immediate Capacitive Touch - Direct Contact, Not suitable for glass or plastic overlay   Syntax/Parameters setup(Touch){...}   Options Resistive Parameter 3.5 4.3 5.7 7.0 Notes type res res res res   enable y y y y enable touch keys globally with y or n samples - 12 12 22 define the number of touch samples per interrupt. debounce - 25 30 25 define the time period between each sampling period. accuracy - 50 14 12 define the 0.25 pixel accuracy of the samples. inactive 1000 1000 1000 1000 time in milliseconds (0=off) To increase the sensitivity set samples = low number e.g. 3 This may only be suitable for buttons which are larger than 80x80 pixels   3.5 4.3 5.7 7.0 Code simple program to help test touch setup Projective Capacitive Parameter 4.3 5.7 7.0 Notes type cap cap cap   width 272 480 480 default to height of display height 480 640 800 default to width of display xnum 16 16 16 number of X electrodes ynum 14 14 14 number of Y electrodes gain 0 0 0 gain of ADC threshold 25 25 25   debounce 3 3 3   address 75 75 75 I2C address of controller inactive 1000 1000 1000 time in milliseconds (0=off) filterlevel  1 1 1 level of filtering applied 0-15 filterlimit   4 4 4 maximum filter limit 0-7 filterenable Y Y Y enable filtering Y/N switch          Y Y Y switch X and Y electrodes invertx Y Y Y invert the order of the X electrodes inverty N N N invert the order of the Y electrodes enable Y Y Y enable touch keys globally with y or n   4.3 5.7 7.0 Code simple program to help test touch setup v49.37 Added ability to specify mxt224 object data using Txx as the parameter name :- ie T9 = "15,00,02,11";            Added separate setup code for all mxt224 variants (mxt224v1,mxt224v2,mxt224Ev1,mxt224Ev2)            Added RESET(TOUCH); for projective capacitive touch Immediate/Contact Capacitive Parameter 7.0 Notes type ICT CCT part number suffix of module enable Y enable touch keys globally with y or n inactive 1000 time in milliseconds (0=off) Type= part number suffix of module ie TU800x480C-K612A1U-CCT would use type=cct;   Metallised - (works with firmware v49.56.5+) Parameter 4.3 5.7 7.0 Notes type cap_dbg cap_dbg cap_dbg   width 480 620 800 default to width of display height 272 460 480 default to height of display xnum 16 15 19 number of X electrodes ynum 14 14 14 number of Y electrodes gain 2 2 2 gain of ADC threshold 8 8 8 decrease value for thicker front panel debounce 3 3 3 decrease for faster response switch n n n switch X and Y electrodes invertx y y y invert the order of the X electrodes inverty n n n invert the order of the Y electrodes ycorr - - 20   ymid - - 200   Firmware version v49.56.6+ only requires the type and threshold values all other parameters will be ignored     Example setup(touch) // resistive touch { type = res; // default is 'res' for resistive touch enable = y; // enable touch keys globally with y or n samples = 20; // define the number of touch samples per interrupt. Defaults:4.3" = 12; 5.7" = 12; 7" = 22; debounce = 10; // define the time period between each sampling period. Defaults: 4.3" = 25; 5.7" = 30; 7" = 25; accuracy = 20; // define the 0.25 pixel accuracy of the samples. Defaults: 4.3" = 50; 5.7" = 14; 7" = 12; inactive=1000; // time in milliseconds (0=off) } setup(touch)  // projective capacitive touch { type = cap; // default is 'res' for resistive touch enable = y; // enable touch keys globally with y or n width = 272; // default to height of display height = 480; // default to width of display xnum = 16; // number of X electrodes ynum = 14; // number of Y electrodes gain = 0; // gain of ADC threshold = 25;  debounce = 3; address = 75; // I2C address of controller inactive=1000; // time in milliseconds (0=off) filterlevel=1;  //level of filtering applied 0-15,  default=1 filterlimit=4;   //maximum filter limit 0-7; default=4 filterenable=Y;  //enable filtering Y/N switch=Y;          //switch X and Y electrodes invertx=Y;        //invert the order of the X electrodes inverty=N;        //invert the order of the Y electrodes } setup(touch) //immediate/contact capacitive touch { type = ict;  // other options are cct or cct2 depending on module part number suffix enable = y; // enable touch keys globally with y or n inactive=1000; // time in milliseconds (0=off) }