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@4:6bcad4fe23d6, 2015-01-22 (annotated)

Committer:
displaymodule
Date:
Thu Jan 22 01:10:00 2015 +0000
Revision:
4:6bcad4fe23d6
Parent:
0:aba2ac5dd09d 
Add new Producets: DM_TFT43_108, DM_TFT50_111 based on new lib drv: DmTftRa8875

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 4:6bcad4fe23d6 24 #include "DmTftRa8875.h"
displaymodule 0:aba2ac5dd09d 25 #include "DmTouch.h"
displaymodule 0:aba2ac5dd09d 26 #include "DmTouchCalibration.h"
displaymodule 0:aba2ac5dd09d 27
displaymodule 0:aba2ac5dd09d 28 /******************************************************************************
displaymodule 0:aba2ac5dd09d 29 * Typedefs and defines
displaymodule 0:aba2ac5dd09d 30 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 31
displaymodule 0:aba2ac5dd09d 32 /* Note that there are restrictions on which platforms that can use printf
displaymodule 0:aba2ac5dd09d 33 in combinations with the DmTftLibrary. Some platforms (e.g. LPC1549 LPCXpresso)
displaymodule 0:aba2ac5dd09d 34 use the same pins for USBRX/USBTX and display control. Printing will
displaymodule 0:aba2ac5dd09d 35 cause the display to not work. Read more about this on the display's notebook
displaymodule 0:aba2ac5dd09d 36 page. */
displaymodule 0:aba2ac5dd09d 37 //#define log(...) printf(__VA_ARGS__)
displaymodule 0:aba2ac5dd09d 38 #define log(...)
displaymodule 0:aba2ac5dd09d 39
displaymodule 0:aba2ac5dd09d 40 #if 1
displaymodule 0:aba2ac5dd09d 41 /* Displays without adapter */
displaymodule 0:aba2ac5dd09d 42 #define DM_PIN_SPI_MOSI D11
displaymodule 0:aba2ac5dd09d 43 #define DM_PIN_SPI_MISO D12
displaymodule 0:aba2ac5dd09d 44 #define DM_PIN_SPI_SCLK D13
displaymodule 0:aba2ac5dd09d 45 #define DM_PIN_CS_TOUCH D4
displaymodule 0:aba2ac5dd09d 46 #define DM_PIN_CS_TFT D10
displaymodule 0:aba2ac5dd09d 47 #define DM_PIN_CS_SDCARD D8
displaymodule 0:aba2ac5dd09d 48 #define DM_PIN_CS_FLASH D6
displaymodule 0:aba2ac5dd09d 49 #else
displaymodule 0:aba2ac5dd09d 50 /* Displays with adapter */
displaymodule 0:aba2ac5dd09d 51 #define DM_PIN_SPI_MOSI A0
displaymodule 0:aba2ac5dd09d 52 #define DM_PIN_SPI_MISO D9
displaymodule 0:aba2ac5dd09d 53 #define DM_PIN_SPI_SCLK A1
displaymodule 0:aba2ac5dd09d 54 #define DM_PIN_CS_TOUCH D8
displaymodule 0:aba2ac5dd09d 55 #define DM_PIN_CS_TFT A3
displaymodule 0:aba2ac5dd09d 56 #define DM_PIN_CS_SDCARD D10
displaymodule 0:aba2ac5dd09d 57 #endif
displaymodule 0:aba2ac5dd09d 58
displaymodule 0:aba2ac5dd09d 59 /******************************************************************************
displaymodule 0:aba2ac5dd09d 60 * Local variables
displaymodule 0:aba2ac5dd09d 61 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 62
displaymodule 0:aba2ac5dd09d 63 //DmTftIli9325 tft; /* DM_TFT28_103 and DM_TFT24_104 */
displaymodule 0:aba2ac5dd09d 64 //DmTftIli9341 tft; /* DM_TFT28_105 */
displaymodule 4:6bcad4fe23d6 65 //DmTftSsd2119 tft; /* DM_TFT35_107 */
displaymodule 4:6bcad4fe23d6 66 DmTftRa8875 tft; /* DM_TFT43_108 and DM_TFT50_111 */
displaymodule 0:aba2ac5dd09d 67
displaymodule 0:aba2ac5dd09d 68 //DmTouch touch(DmTouch::DM_TFT28_103, DmTouch::Software); /* For LPC4088 QuickStart Board */
displaymodule 0:aba2ac5dd09d 69 //DmTouch touch(DmTouch::DM_TFT28_103);
displaymodule 0:aba2ac5dd09d 70 //DmTouch touch(DmTouch::DM_TFT24_104, DmTouch::Software); /* For LPC4088 QuickStart Board */
displaymodule 0:aba2ac5dd09d 71 //DmTouch touch(DmTouch::DM_TFT24_104);
displaymodule 0:aba2ac5dd09d 72 //DmTouch touch(DmTouch::DM_TFT28_105);
displaymodule 4:6bcad4fe23d6 73 //DmTouch touch(DmTouch::DM_TFT35_107);
displaymodule 4:6bcad4fe23d6 74 //DmTouch touch(DmTouch::DM_TFT43_108); // For DmTftRa8875 driver, The panel resolution should be config in DmTftRa8875::init() function on the DmTftRa8875.cpp file.
displaymodule 4:6bcad4fe23d6 75 DmTouch touch(DmTouch::DM_TFT50_111);
displaymodule 0:aba2ac5dd09d 76
displaymodule 0:aba2ac5dd09d 77 DmTouchCalibration calibration = DmTouchCalibration(&tft, &touch);
displaymodule 0:aba2ac5dd09d 78
displaymodule 0:aba2ac5dd09d 79 DigitalInOut csTouch(DM_PIN_CS_TOUCH, PIN_OUTPUT, PullUp, 1);
displaymodule 0:aba2ac5dd09d 80 DigitalInOut csDisplay(DM_PIN_CS_TFT, PIN_OUTPUT, PullUp, 1);
displaymodule 0:aba2ac5dd09d 81 DigitalInOut csSDCard(DM_PIN_CS_SDCARD, PIN_OUTPUT, PullUp, 1);
displaymodule 0:aba2ac5dd09d 82 #ifdef DM_PIN_CS_FLASH
displaymodule 0:aba2ac5dd09d 83 DigitalInOut csFlash(DM_PIN_CS_FLASH, PIN_OUTPUT, PullUp, 1);
displaymodule 0:aba2ac5dd09d 84 #endif
displaymodule 0:aba2ac5dd09d 85
displaymodule 0:aba2ac5dd09d 86 bool calibrated = false;
displaymodule 0:aba2ac5dd09d 87
displaymodule 0:aba2ac5dd09d 88 /******************************************************************************
displaymodule 0:aba2ac5dd09d 89 * Global variables
displaymodule 0:aba2ac5dd09d 90 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 91
displaymodule 0:aba2ac5dd09d 92 /******************************************************************************
displaymodule 0:aba2ac5dd09d 93 * Local functions
displaymodule 0:aba2ac5dd09d 94 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 95
displaymodule 0:aba2ac5dd09d 96 static void loop() {
displaymodule 0:aba2ac5dd09d 97 uint16_t x, y = 0;
displaymodule 0:aba2ac5dd09d 98 bool touched = false;
displaymodule 0:aba2ac5dd09d 99
displaymodule 0:aba2ac5dd09d 100 if (!calibrated) {
displaymodule 0:aba2ac5dd09d 101 tft.drawString(5, 5, "Press and hold on cross");
displaymodule 0:aba2ac5dd09d 102 tft.drawString(5, 25, "until it turns green. ");
displaymodule 4:6bcad4fe23d6 103
displaymodule 0:aba2ac5dd09d 104 Point displayRefPoint[5];
displaymodule 0:aba2ac5dd09d 105 Point touchRefPoint[5];
displaymodule 0:aba2ac5dd09d 106 if (calibration.getTouchReferencePoints(displayRefPoint, touchRefPoint, tft.width(), tft.height())) {
displaymodule 0:aba2ac5dd09d 107 CalibrationMatrix calibrationMatrix = calibration.calculateCalibrationMatrix(displayRefPoint, touchRefPoint);
displaymodule 0:aba2ac5dd09d 108 touch.setCalibrationMatrix(calibrationMatrix);
displaymodule 0:aba2ac5dd09d 109 tft.clearScreen();
displaymodule 0:aba2ac5dd09d 110 calibration.drawCalibPoint(displayRefPoint[0].x, displayRefPoint[0].y);
displaymodule 0:aba2ac5dd09d 111 calibration.drawCalibPoint(displayRefPoint[1].x, displayRefPoint[1].y);
displaymodule 0:aba2ac5dd09d 112 calibration.drawCalibPoint(displayRefPoint[2].x, displayRefPoint[2].y);
displaymodule 0:aba2ac5dd09d 113 calibration.drawCalibPoint(displayRefPoint[3].x, displayRefPoint[3].y);
displaymodule 0:aba2ac5dd09d 114 calibration.drawCalibPoint(displayRefPoint[4].x, displayRefPoint[4].y);
displaymodule 0:aba2ac5dd09d 115 calibration.drawCalibration(calibrationMatrix);
displaymodule 0:aba2ac5dd09d 116 calibrated = true;
displaymodule 0:aba2ac5dd09d 117 } else {
displaymodule 0:aba2ac5dd09d 118 tft.clearScreen();
displaymodule 0:aba2ac5dd09d 119 tft.drawString(5, 5, "Calibration failed");
displaymodule 0:aba2ac5dd09d 120 tft.drawString(5, 25, "Please try again.");
displaymodule 0:aba2ac5dd09d 121 delay(2000);
displaymodule 0:aba2ac5dd09d 122 tft.clearScreen();
displaymodule 0:aba2ac5dd09d 123 return;
displaymodule 0:aba2ac5dd09d 124 }
displaymodule 0:aba2ac5dd09d 125 }
displaymodule 0:aba2ac5dd09d 126
displaymodule 0:aba2ac5dd09d 127 if (touch.isTouched()) {
displaymodule 0:aba2ac5dd09d 128 touch.readTouchData(x,y,touched);
displaymodule 0:aba2ac5dd09d 129 calibration.drawCalibPoint(x, y);
displaymodule 0:aba2ac5dd09d 130 }
displaymodule 0:aba2ac5dd09d 131 }
displaymodule 0:aba2ac5dd09d 132
displaymodule 0:aba2ac5dd09d 133 /******************************************************************************
displaymodule 0:aba2ac5dd09d 134 * Main
displaymodule 0:aba2ac5dd09d 135 *****************************************************************************/
displaymodule 0:aba2ac5dd09d 136
displaymodule 0:aba2ac5dd09d 137 int main() {
displaymodule 0:aba2ac5dd09d 138 tft.init();
displaymodule 0:aba2ac5dd09d 139 touch.init();
displaymodule 0:aba2ac5dd09d 140 while (1) {
displaymodule 0:aba2ac5dd09d 141 loop();
displaymodule 0:aba2ac5dd09d 142 }
displaymodule 0:aba2ac5dd09d 143 }
displaymodule 0:aba2ac5dd09d 144