Display Module / Mbed 2 deprecated dm_calibrate

This application makes it possible to calibrate the touch screen. Note that the calibration data is not persistently saved. Either do the calibration on every startup or modify the default values in DmTouchCalibration.

Dependencies:   DmTftLibrary mbed

main.cpp@0:aba2ac5dd09d, 2014-07-04 (annotated)

Committer:
displaymodule
Date:
Fri Jul 04 10:24:13 2014 +0000
Revision:
0:aba2ac5dd09d
Child:
4:6bcad4fe23d6
First version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
displaymodule 0:aba2ac5dd09d 1 /**********************************************************************************************
displaymodule 0:aba2ac5dd09d 2 Copyright (c) 2014 DisplayModule. All rights reserved.
displaymodule 0:aba2ac5dd09d 3
displaymodule 0:aba2ac5dd09d 4 Redistribution and use of this source code, part of this source code or any compiled binary
displaymodule 0:aba2ac5dd09d 5 based on this source code is permitted as long as the above copyright notice and following
displaymodule 0:aba2ac5dd09d 6 disclaimer is retained.
displaymodule 0:aba2ac5dd09d 7
displaymodule 0:aba2ac5dd09d 8 DISCLAIMER:
displaymodule 0:aba2ac5dd09d 9 THIS SOFTWARE IS SUPPLIED "AS IS" WITHOUT ANY WARRANTIES AND SUPPORT. DISPLAYMODULE ASSUMES
displaymodule 0:aba2ac5dd09d 10 NO RESPONSIBILITY OR LIABILITY FOR THE USE OF THE SOFTWARE.
displaymodule 0:aba2ac5dd09d 11 ********************************************************************************************/
displaymodule 0:aba2ac5dd09d 12
displaymodule 0:aba2ac5dd09d 13 /******************************************************************************
displaymodule 0:aba2ac5dd09d 14 * Includes
displaymodule 0:aba2ac5dd09d 15 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 16
displaymodule 0:aba2ac5dd09d 17 #include "mbed.h"
displaymodule 0:aba2ac5dd09d 18
displaymodule 0:aba2ac5dd09d 19 #include "DmTftHX8353C.h"
displaymodule 0:aba2ac5dd09d 20 #include "DmTftS6D0164.h"
displaymodule 0:aba2ac5dd09d 21 #include "DmTftIli9325.h"
displaymodule 0:aba2ac5dd09d 22 #include "DmTftIli9341.h"
displaymodule 0:aba2ac5dd09d 23 #include "DmTftSsd2119.h"
displaymodule 0:aba2ac5dd09d 24 #include "DmTouch.h"
displaymodule 0:aba2ac5dd09d 25 #include "DmTouchCalibration.h"
displaymodule 0:aba2ac5dd09d 26
displaymodule 0:aba2ac5dd09d 27 /******************************************************************************
displaymodule 0:aba2ac5dd09d 28 * Typedefs and defines
displaymodule 0:aba2ac5dd09d 29 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 30
displaymodule 0:aba2ac5dd09d 31 /* Note that there are restrictions on which platforms that can use printf
displaymodule 0:aba2ac5dd09d 32 in combinations with the DmTftLibrary. Some platforms (e.g. LPC1549 LPCXpresso)
displaymodule 0:aba2ac5dd09d 33 use the same pins for USBRX/USBTX and display control. Printing will
displaymodule 0:aba2ac5dd09d 34 cause the display to not work. Read more about this on the display's notebook
displaymodule 0:aba2ac5dd09d 35 page. */
displaymodule 0:aba2ac5dd09d 36 //#define log(...) printf(__VA_ARGS__)
displaymodule 0:aba2ac5dd09d 37 #define log(...)
displaymodule 0:aba2ac5dd09d 38
displaymodule 0:aba2ac5dd09d 39 #if 1
displaymodule 0:aba2ac5dd09d 40 /* Displays without adapter */
displaymodule 0:aba2ac5dd09d 41 #define DM_PIN_SPI_MOSI D11
displaymodule 0:aba2ac5dd09d 42 #define DM_PIN_SPI_MISO D12
displaymodule 0:aba2ac5dd09d 43 #define DM_PIN_SPI_SCLK D13
displaymodule 0:aba2ac5dd09d 44 #define DM_PIN_CS_TOUCH D4
displaymodule 0:aba2ac5dd09d 45 #define DM_PIN_CS_TFT D10
displaymodule 0:aba2ac5dd09d 46 #define DM_PIN_CS_SDCARD D8
displaymodule 0:aba2ac5dd09d 47 #define DM_PIN_CS_FLASH D6
displaymodule 0:aba2ac5dd09d 48 #else
displaymodule 0:aba2ac5dd09d 49 /* Displays with adapter */
displaymodule 0:aba2ac5dd09d 50 #define DM_PIN_SPI_MOSI A0
displaymodule 0:aba2ac5dd09d 51 #define DM_PIN_SPI_MISO D9
displaymodule 0:aba2ac5dd09d 52 #define DM_PIN_SPI_SCLK A1
displaymodule 0:aba2ac5dd09d 53 #define DM_PIN_CS_TOUCH D8
displaymodule 0:aba2ac5dd09d 54 #define DM_PIN_CS_TFT A3
displaymodule 0:aba2ac5dd09d 55 #define DM_PIN_CS_SDCARD D10
displaymodule 0:aba2ac5dd09d 56 #endif
displaymodule 0:aba2ac5dd09d 57
displaymodule 0:aba2ac5dd09d 58 /******************************************************************************
displaymodule 0:aba2ac5dd09d 59 * Local variables
displaymodule 0:aba2ac5dd09d 60 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 61
displaymodule 0:aba2ac5dd09d 62 //DmTftIli9325 tft; /* DM_TFT28_103 and DM_TFT24_104 */
displaymodule 0:aba2ac5dd09d 63 //DmTftIli9341 tft; /* DM_TFT28_105 */
displaymodule 0:aba2ac5dd09d 64 DmTftSsd2119 tft; /* DM_TFT35_107 */
displaymodule 0:aba2ac5dd09d 65
displaymodule 0:aba2ac5dd09d 66 //DmTouch touch(DmTouch::DM_TFT28_103, DmTouch::Software); /* For LPC4088 QuickStart Board */
displaymodule 0:aba2ac5dd09d 67 //DmTouch touch(DmTouch::DM_TFT28_103);
displaymodule 0:aba2ac5dd09d 68 //DmTouch touch(DmTouch::DM_TFT24_104, DmTouch::Software); /* For LPC4088 QuickStart Board */
displaymodule 0:aba2ac5dd09d 69 //DmTouch touch(DmTouch::DM_TFT24_104);
displaymodule 0:aba2ac5dd09d 70 //DmTouch touch(DmTouch::DM_TFT28_105);
displaymodule 0:aba2ac5dd09d 71 DmTouch touch(DmTouch::DM_TFT35_107);
displaymodule 0:aba2ac5dd09d 72
displaymodule 0:aba2ac5dd09d 73 DmTouchCalibration calibration = DmTouchCalibration(&tft, &touch);
displaymodule 0:aba2ac5dd09d 74
displaymodule 0:aba2ac5dd09d 75 DigitalInOut csTouch(DM_PIN_CS_TOUCH, PIN_OUTPUT, PullUp, 1);
displaymodule 0:aba2ac5dd09d 76 DigitalInOut csDisplay(DM_PIN_CS_TFT, PIN_OUTPUT, PullUp, 1);
displaymodule 0:aba2ac5dd09d 77 DigitalInOut csSDCard(DM_PIN_CS_SDCARD, PIN_OUTPUT, PullUp, 1);
displaymodule 0:aba2ac5dd09d 78 #ifdef DM_PIN_CS_FLASH
displaymodule 0:aba2ac5dd09d 79 DigitalInOut csFlash(DM_PIN_CS_FLASH, PIN_OUTPUT, PullUp, 1);
displaymodule 0:aba2ac5dd09d 80 #endif
displaymodule 0:aba2ac5dd09d 81
displaymodule 0:aba2ac5dd09d 82 bool calibrated = false;
displaymodule 0:aba2ac5dd09d 83
displaymodule 0:aba2ac5dd09d 84 /******************************************************************************
displaymodule 0:aba2ac5dd09d 85 * Global variables
displaymodule 0:aba2ac5dd09d 86 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 87
displaymodule 0:aba2ac5dd09d 88 /******************************************************************************
displaymodule 0:aba2ac5dd09d 89 * Local functions
displaymodule 0:aba2ac5dd09d 90 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 91
displaymodule 0:aba2ac5dd09d 92 static void loop() {
displaymodule 0:aba2ac5dd09d 93 uint16_t x, y = 0;
displaymodule 0:aba2ac5dd09d 94 bool touched = false;
displaymodule 0:aba2ac5dd09d 95
displaymodule 0:aba2ac5dd09d 96 if (!calibrated) {
displaymodule 0:aba2ac5dd09d 97 tft.drawString(5, 5, "Press and hold on cross");
displaymodule 0:aba2ac5dd09d 98 tft.drawString(5, 25, "until it turns green. ");
displaymodule 0:aba2ac5dd09d 99
displaymodule 0:aba2ac5dd09d 100 Point displayRefPoint[5];
displaymodule 0:aba2ac5dd09d 101 Point touchRefPoint[5];
displaymodule 0:aba2ac5dd09d 102 if (calibration.getTouchReferencePoints(displayRefPoint, touchRefPoint, tft.width(), tft.height())) {
displaymodule 0:aba2ac5dd09d 103 CalibrationMatrix calibrationMatrix = calibration.calculateCalibrationMatrix(displayRefPoint, touchRefPoint);
displaymodule 0:aba2ac5dd09d 104 touch.setCalibrationMatrix(calibrationMatrix);
displaymodule 0:aba2ac5dd09d 105 tft.clearScreen();
displaymodule 0:aba2ac5dd09d 106 calibration.drawCalibPoint(displayRefPoint[0].x, displayRefPoint[0].y);
displaymodule 0:aba2ac5dd09d 107 calibration.drawCalibPoint(displayRefPoint[1].x, displayRefPoint[1].y);
displaymodule 0:aba2ac5dd09d 108 calibration.drawCalibPoint(displayRefPoint[2].x, displayRefPoint[2].y);
displaymodule 0:aba2ac5dd09d 109 calibration.drawCalibPoint(displayRefPoint[3].x, displayRefPoint[3].y);
displaymodule 0:aba2ac5dd09d 110 calibration.drawCalibPoint(displayRefPoint[4].x, displayRefPoint[4].y);
displaymodule 0:aba2ac5dd09d 111 calibration.drawCalibration(calibrationMatrix);
displaymodule 0:aba2ac5dd09d 112 calibrated = true;
displaymodule 0:aba2ac5dd09d 113 } else {
displaymodule 0:aba2ac5dd09d 114 tft.clearScreen();
displaymodule 0:aba2ac5dd09d 115 tft.drawString(5, 5, "Calibration failed");
displaymodule 0:aba2ac5dd09d 116 tft.drawString(5, 25, "Please try again.");
displaymodule 0:aba2ac5dd09d 117 delay(2000);
displaymodule 0:aba2ac5dd09d 118 tft.clearScreen();
displaymodule 0:aba2ac5dd09d 119 return;
displaymodule 0:aba2ac5dd09d 120 }
displaymodule 0:aba2ac5dd09d 121 }
displaymodule 0:aba2ac5dd09d 122
displaymodule 0:aba2ac5dd09d 123 if (touch.isTouched()) {
displaymodule 0:aba2ac5dd09d 124 touch.readTouchData(x,y,touched);
displaymodule 0:aba2ac5dd09d 125 calibration.drawCalibPoint(x, y);
displaymodule 0:aba2ac5dd09d 126 }
displaymodule 0:aba2ac5dd09d 127 }
displaymodule 0:aba2ac5dd09d 128
displaymodule 0:aba2ac5dd09d 129 /******************************************************************************
displaymodule 0:aba2ac5dd09d 130 * Main
displaymodule 0:aba2ac5dd09d 131 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 132
displaymodule 0:aba2ac5dd09d 133 int main() {
displaymodule 0:aba2ac5dd09d 134 tft.init();
displaymodule 0:aba2ac5dd09d 135 touch.init();
displaymodule 0:aba2ac5dd09d 136 while (1) {
displaymodule 0:aba2ac5dd09d 137 loop();
displaymodule 0:aba2ac5dd09d 138 }
displaymodule 0:aba2ac5dd09d 139 }
displaymodule 0:aba2ac5dd09d 140