mirror of
https://github.com/YuzuZensai/MCUFRIEND_kbv.git
synced 2026-01-06 04:32:38 +00:00
456 lines
14 KiB
C++
456 lines
14 KiB
C++
// .kbv: previous sketch wasted too much SRAM with const strings
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// .kbv: replace all UTFT print const strings with F(string)
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// .kbv: correct UTFTGLUE settextcursor() for String print
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// https://forum.arduino.cc/index.php?topic=473885.msg3245748#msg3245748
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// file attached 03 May 2017 21:15 BST
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// TouchScreen_Calibr_kbv for MCUFRIEND UNO Display Shields
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// adapted by David Prentice
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// for Adafruit's <TouchScreen.h> Resistive Touch Screen Library
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// from Henning Karlsen's original program. Many Thanks.
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// UTouch_Calibration (C)2013-2014 Henning Karlsen
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// web: http://www.henningkarlsen.com/electronics
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//
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// This program can be used to calibrate the touchscreen
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// of the display modules.
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//
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// It is assumed that the display module is connected to an
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// appropriate shield or that you know how to change the pin
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// numbers in the setup.
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//
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// Instructions will be given on the display.
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//#define TOUCH_ORIENTATION LANDSCAPE
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#define TOUCH_ORIENTATION PORTRAIT
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#define TITLE "TouchScreen.h Calibration"
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#include <Adafruit_GFX.h>
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#include <UTFTGLUE.h> //we are using UTFT display methods
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UTFTGLUE myGLCD(0x9341, A2, A1, A3, A4, A0);
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// MCUFRIEND UNO shield shares pins with the TFT. Due does NOT work
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//int XP = 6, XM = A2, YP = A1, YM = 7; //most common configuration (dead Due)
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int XP = 7, XM = A1, YP = A2, YM = 6; //most common configuration (WHITE Due)
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//#include "TouchScreen_kbv.h" //Local Library
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//TouchScreen_kbv myTouch(XP, YP, XM, YM, 300);
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#include <TouchScreen.h> //Global Library
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TouchScreen myTouch(XP, YP, XM, YM, 300);
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TSPoint tp; //Touchscreen_due branch uses Point
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void readResistiveTouch(void)
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{
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tp = myTouch.getPoint();
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pinMode(YP, OUTPUT); //restore shared pins
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pinMode(XM, OUTPUT);
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}
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bool ISPRESSED(void)
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{
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// .kbv this was too sensitive !!
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// now touch has to be stable for 50ms
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int count = 0;
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bool state, oldstate;
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while (count < 10) {
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readResistiveTouch();
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state = tp.z > 180; // .kbv was >20 && < 1000
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if (state == oldstate) count++;
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else count = 0;
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oldstate = state;
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delay(5);
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}
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return oldstate;
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}
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void showpoint(void)
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{
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Serial.print("\r\nx="); Serial.print(tp.x);
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Serial.print(" y="); Serial.print(tp.y);
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Serial.print(" z="); Serial.print(tp.z);
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}
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// ************************************
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// DO NOT EDIT ANYTHING BELOW THIS LINE
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// ************************************
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// Declare which fonts we will be using
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#if defined(SmallFont) //.kbv new GLUE defines FreeSmallFont
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#undef SmallFont //.kbv lose it
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#define SmallFont NULL //.kbv use System Font
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#else
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extern uint8_t SmallFont[]; //.kbv
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#endif
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uint32_t cx, cy;
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uint32_t rx[8], ry[8];
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int32_t clx, crx, cty, cby;
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float px, py;
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int dispx, dispy, text_y_center, swapxy;
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uint32_t calx, caly, cals;
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char buf[13];
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void showpins(int A, int D, int value, const char *msg)
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{
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char buf[40];
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sprintf(buf, "%s (A%d, D%d) = %d", msg, A - A0, D, value);
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Serial.println(buf);
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}
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boolean diagnose_pins()
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{
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int i, j, value, Apins[2], Dpins[2], Values[2], found = 0;
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// Serial.begin(9600);
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Serial.println("Making all control and bus pins INPUT_PULLUP");
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Serial.println("Typical 30k Analog pullup with corresponding pin");
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Serial.println("would read low when digital is written LOW");
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Serial.println("e.g. reads ~25 for 300R X direction");
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Serial.println("e.g. reads ~30 for 500R Y direction");
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Serial.println("");
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for (i = A0; i < A5; i++) pinMode(i, INPUT_PULLUP);
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for (i = 2; i < 10; i++) pinMode(i, INPUT_PULLUP);
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for (i = A0; i < A4; i++) {
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for (j = 5; j < 10; j++) {
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pinMode(j, OUTPUT);
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digitalWrite(j, LOW);
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value = analogRead(i); // ignore first reading
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value = analogRead(i);
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if (value < 100) {
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showpins(i, j, value, "Testing :");
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if (found < 2) {
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Apins[found] = i;
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Dpins[found] = j;
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Values[found] = value;
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found++;
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}
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}
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pinMode(j, INPUT_PULLUP);
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}
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}
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if (found == 2) {
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Serial.println("Diagnosing as:-");
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int idx = Values[0] < Values[1];
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for (i = 0; i < 2; i++) {
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showpins(Apins[i], Dpins[i], Values[i],
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(Values[i] < Values[!i]) ? "XM,XP: " : "YP,YM: ");
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}
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XM = Apins[!idx]; XP = Dpins[!idx]; YP = Apins[idx]; YM = Dpins[idx];
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// myTouch = TouchScreen_kbv(XP, YP, XM, YM, 300); //Local library
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myTouch = TouchScreen(XP, YP, XM, YM, 300); //Global library
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return true;
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}
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Serial.println("BROKEN TOUCHSCREEN");
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return false;
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}
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void setup()
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{
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Serial.begin(9600);
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Serial.println(TITLE);
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bool ret = true;
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#if defined(__AVR_ATmega328P__) || defined(__AVR_ATmega2560__)
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ret = diagnose_pins();
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#else
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Serial.println("Only AVR can diagnose Touch Pins");
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Serial.println("Other targets use default Pins");
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char buf[40];
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sprintf(buf, "Touch Pin Wiring XP=%d XM=A%d YP=A%d YM=%d",
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XP, XM - A0, YP - A0, YM);
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Serial.println(buf);
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#endif
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digitalWrite(A0, HIGH);
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pinMode(A0, OUTPUT);
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myGLCD.InitLCD(TOUCH_ORIENTATION);
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myGLCD.clrScr();
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myGLCD.setFont(SmallFont);
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dispx = myGLCD.getDisplayXSize();
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dispy = myGLCD.getDisplayYSize();
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text_y_center = (dispy / 2) - 6;
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if (ret == false) {
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myGLCD.print(F("BROKEN TOUCHSCREEN"), CENTER, dispy / 2);
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while (1);
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}
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}
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void drawCrossHair(int x, int y)
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{
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myGLCD.drawRect(x - 10, y - 10, x + 10, y + 10);
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myGLCD.drawLine(x - 5, y, x + 5, y);
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myGLCD.drawLine(x, y - 5, x, y + 5);
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}
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void readCoordinates()
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{
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int iter = 5000;
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int failcount = 0;
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int cnt = 0;
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uint32_t tx = 0;
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uint32_t ty = 0;
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boolean OK = false;
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while (OK == false)
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{
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myGLCD.setColor(255, 255, 255);
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myGLCD.print(F("* PRESS *"), CENTER, text_y_center);
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while (ISPRESSED() == false) {}
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myGLCD.print(F("* HOLD! *"), CENTER, text_y_center);
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cnt = 0;
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iter = 400;
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do
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{
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readResistiveTouch();
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// showpoint(tp);
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if (tp.z > 20 && tp.z < 1000)
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{
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tx += tp.x;
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ty += tp.y;
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cnt++;
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}
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else
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failcount++;
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} while ((cnt < iter) && (failcount < 10000));
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if (cnt >= iter)
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{
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OK = true;
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}
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else
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{
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tx = 0;
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ty = 0;
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cnt = 0;
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}
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if (failcount >= 10000)
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fail();
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}
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cx = tx / iter;
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cy = ty / iter;
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}
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void calibrate(int x, int y, int i)
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{
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myGLCD.setColor(255, 255, 255);
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drawCrossHair(x, y);
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myGLCD.setBackColor(255, 0, 0);
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readCoordinates();
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myGLCD.setColor(255, 255, 255);
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myGLCD.print(F("* RELEASE *"), CENTER, text_y_center);
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myGLCD.setColor(80, 80, 80);
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drawCrossHair(x, y);
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rx[i] = cx;
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ry[i] = cy;
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Serial.print("\r\ncx="); Serial.print(cx);
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Serial.print(" cy="); Serial.print(cy);
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while (ISPRESSED() == true) {}
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}
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void waitForTouch()
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{
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while (ISPRESSED() == true) {}
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while (ISPRESSED() == false) {}
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while (ISPRESSED() == true) {}
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}
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void toHex(uint32_t num)
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{
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buf[0] = '0';
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buf[1] = 'x';
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buf[10] = 'U';
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buf[11] = 'L';
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buf[12] = 0;
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for (int zz = 9; zz > 1; zz--)
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{
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if ((num & 0xF) > 9)
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buf[zz] = (num & 0xF) + 55;
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else
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buf[zz] = (num & 0xF) + 48;
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num = num >> 4;
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}
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}
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void startup()
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{
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myGLCD.setColor(255, 0, 0);
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myGLCD.fillRect(0, 0, dispx - 1, 13);
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myGLCD.setColor(255, 255, 255);
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myGLCD.setBackColor(255, 0, 0);
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myGLCD.drawLine(0, 14, dispx - 1, 14);
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myGLCD.print(TITLE, CENTER, 1);
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myGLCD.setBackColor(0, 0, 0);
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myGLCD.print(F("#define NUMSAMPLES 3 in Library"), LEFT, 18);
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myGLCD.print(F("Use a stylus or something"), LEFT, 30);
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myGLCD.print(F("similar to touch as close"), LEFT, 42);
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myGLCD.print(F("to the center of the"), LEFT, 54);
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myGLCD.print(F("highlighted crosshair as"), LEFT, 66);
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myGLCD.print(F("possible. Keep as still as"), LEFT, 78);
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myGLCD.print(F("possible and keep holding"), LEFT, 90);
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myGLCD.print(F("until the highlight is"), LEFT, 102);
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myGLCD.print(F("removed. Repeat for all"), LEFT, 114);
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myGLCD.print(F("crosshairs in sequence."), LEFT, 126);
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myGLCD.print(F("Touch screen to continue"), CENTER, 162);
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waitForTouch();
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}
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void showNumI(char *msg, uint32_t val, int x, int y)
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{
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myGLCD.print(msg, x, y);
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myGLCD.printNumI(val, x + 50, y);
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}
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void done()
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{
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uint16_t TS_LEFT, TS_RT, TS_TOP, TS_BOT, TS_WID, TS_HT, TS_SWAP;
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int16_t tmp;
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char buf[60];
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myGLCD.clrScr();
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myGLCD.setColor(255, 0, 0);
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myGLCD.fillRect(0, 0, dispx - 1, 13);
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myGLCD.setColor(255, 255, 255);
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myGLCD.setBackColor(255, 0, 0);
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myGLCD.drawLine(0, 14, dispx - 1, 14);
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myGLCD.print(TITLE, CENTER, 1);
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myGLCD.setBackColor(0, 0, 0);
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myGLCD.print(F("To use the new calibration"), LEFT, 30);
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myGLCD.print(F("settings you must map the values"), LEFT, 42);
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myGLCD.print(F("from Point p = ts.getPoint() e.g. "), LEFT, 54);
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myGLCD.print(F("x = map(p.x, LEFT, RT, 0, tft.width());"), LEFT, 66);
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myGLCD.print(F("y = map(p.y, TOP, BOT, 0, tft.height());"), LEFT, 78);
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myGLCD.print(F("swap p.x and p.y if diff ORIENTATION"), LEFT, 90);
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//.kbv show human values
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TS_LEFT = (calx >> 14) & 0x3FFF;
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TS_RT = (calx >> 0) & 0x3FFF;
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TS_TOP = (caly >> 14) & 0x3FFF;
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TS_BOT = (caly >> 0) & 0x3FFF;
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TS_WID = ((cals >> 12) & 0x0FFF) + 1;
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TS_HT = ((cals >> 0) & 0x0FFF) + 1;
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TS_SWAP = (cals >> 31);
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int y = 120;
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Serial.println("");
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sprintf(buf, "Sketch is %s %d x %d",
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TOUCH_ORIENTATION ? "LANDSCAPE" : "PORTRAIT", TS_WID, TS_HT);
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myGLCD.print(buf, 0, y);
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Serial.println(buf);
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if (TOUCH_ORIENTATION == LANDSCAPE) { //always show PORTRAIT first
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tmp = TS_LEFT, TS_LEFT = TS_BOT, TS_BOT = TS_RT, TS_RT = TS_TOP, TS_TOP = tmp;
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tmp = TS_WID, TS_WID = TS_HT, TS_HT = tmp;
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}
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sprintf(buf, "PORTRAIT CALIBRATION %d x %d", TS_WID, TS_HT);
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myGLCD.print(buf, 0, y += 24);
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Serial.println(buf);
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sprintf(buf, "x = map(p.x, LEFT=%d, RT=%d, 0, %d)", TS_LEFT, TS_RT, TS_WID);
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myGLCD.print(buf, 0, y += 12);
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Serial.println(buf);
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sprintf(buf, "y = map(p.y, TOP=%d, BOT=%d, 0, %d)", TS_TOP, TS_BOT, TS_HT);
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myGLCD.print(buf, 0, y += 12);
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Serial.println(buf);
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sprintf(buf, "Touch Pin Wiring XP=%d XM=A%d YP=A%d YM=%d",
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XP, XM - A0, YP - A0, YM);
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myGLCD.print(buf, 0, y += 24);
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Serial.println(buf);
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tmp = TS_LEFT, TS_LEFT = TS_TOP, TS_TOP = TS_RT, TS_RT = TS_BOT, TS_BOT = tmp;
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tmp = TS_WID, TS_WID = TS_HT, TS_HT = tmp;
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sprintf(buf, "LANDSCAPE CALIBRATION %d x %d", TS_WID, TS_HT);
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myGLCD.print(buf, 0, y += 24);
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Serial.println(buf);
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sprintf(buf, "x = map(p.y, LEFT=%d, RT=%d, 0, %d)", TS_LEFT, TS_RT, TS_WID);
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myGLCD.print(buf, 0, y += 12);
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Serial.println(buf);
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sprintf(buf, "y = map(p.x, TOP=%d, BOT=%d, 0, %d)", TS_TOP, TS_BOT, TS_HT);
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myGLCD.print(buf, 0, y += 12);
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Serial.println(buf);
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}
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void fail()
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{
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myGLCD.clrScr();
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myGLCD.setColor(255, 0, 0);
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myGLCD.fillRect(0, 0, dispx - 1, 13);
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myGLCD.setColor(255, 255, 255);
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myGLCD.setBackColor(255, 0, 0);
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myGLCD.drawLine(0, 14, dispx - 1, 14);
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myGLCD.print(F("Touch Calibration FAILED"), CENTER, 1);
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myGLCD.setBackColor(0, 0, 0);
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myGLCD.print(F("Unable to read the position"), LEFT, 30);
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myGLCD.print(F("of the press. This is a"), LEFT, 42);
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myGLCD.print(F("hardware issue and can"), LEFT, 54);
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myGLCD.print(F("not be corrected in"), LEFT, 66);
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myGLCD.print(F("software."), LEFT, 78);
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myGLCD.print(F("check XP, XM pins with a multimeter"), LEFT, 102);
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myGLCD.print(F("check YP, YM pins with a multimeter"), LEFT, 114);
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myGLCD.print(F("should be about 300 ohms"), LEFT, 126);
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while (true) {};
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}
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void loop()
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{
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startup();
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delay(100);
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myGLCD.clrScr();
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myGLCD.setColor(80, 80, 80);
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drawCrossHair(dispx - 11, 10);
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drawCrossHair(dispx / 2, 10);
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drawCrossHair(10, 10);
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drawCrossHair(dispx - 11, dispy / 2);
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drawCrossHair(10, dispy / 2);
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drawCrossHair(dispx - 11, dispy - 11);
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drawCrossHair(dispx / 2, dispy - 11);
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drawCrossHair(10, dispy - 11);
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myGLCD.setColor(255, 255, 255);
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myGLCD.setBackColor(255, 0, 0);
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myGLCD.print(F("***********"), CENTER, text_y_center - 12);
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myGLCD.print(F("***********"), CENTER, text_y_center + 12);
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calibrate(10, 10, 0);
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calibrate(10, dispy / 2, 1);
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calibrate(10, dispy - 11, 2);
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calibrate(dispx / 2, 10, 3);
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calibrate(dispx / 2, dispy - 11, 4);
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calibrate(dispx - 11, 10, 5);
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calibrate(dispx - 11, dispy / 2, 6);
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calibrate(dispx - 11, dispy - 11, 7);
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cals = (long(dispx - 1) << 12) + (dispy - 1);
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if (TOUCH_ORIENTATION == PORTRAIT) swapxy = rx[2] - rx[0];
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else swapxy = ry[2] - ry[0];
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swapxy = (swapxy < -500 || swapxy > 500);
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if ((TOUCH_ORIENTATION == PORTRAIT) ^ (swapxy != 0)) {
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clx = (rx[0] + rx[1] + rx[2]) / 3;
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crx = (rx[5] + rx[6] + rx[7]) / 3;
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cty = (ry[0] + ry[3] + ry[5]) / 3;
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cby = (ry[2] + ry[4] + ry[7]) / 3;
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} else {
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clx = (ry[0] + ry[1] + ry[2]) / 3;
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crx = (ry[5] + ry[6] + ry[7]) / 3;
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cty = (rx[0] + rx[3] + rx[5]) / 3;
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cby = (rx[2] + rx[4] + rx[7]) / 3;
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}
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px = float(crx - clx) / (dispx - 20);
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py = float(cby - cty) / (dispy - 20);
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// px = 0;
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clx -= px * 10;
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crx += px * 10;
|
|
cty -= py * 10;
|
|
cby += py * 10;
|
|
|
|
calx = (long(clx) << 14) + long(crx);
|
|
caly = (long(cty) << 14) + long(cby);
|
|
if (swapxy)
|
|
cals |= (1L << 31);
|
|
|
|
done();
|
|
while (true) {}
|
|
}
|
|
|
|
|