Stepan Smejkal / UTouch

mbed library for XPT2046 SPI Touchscreen Controller (TFT_320QVT module)

UTouch.h@1:1840ecdcb109, 2021-12-01 (annotated)

Committer:
smejky
Date:
Wed Dec 01 15:31:04 2021 +0000
Revision:
1:1840ecdcb109
Parent:
0:a275ef704eb8 
my display;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rpocc 0:a275ef704eb8 1 /** \file UTouch.h
rpocc 0:a275ef704eb8 2 * \brief mbed library for XPT2046 SPI Touchscreen Controller (TFT_320QVT module).
rpocc 0:a275ef704eb8 3 * \copyright GNU Public License, v2. or later
rpocc 0:a275ef704eb8 4 *
rpocc 0:a275ef704eb8 5 * A known display with this type of controller chip is the ITDB02-3.2S
rpocc 0:a275ef704eb8 6 * from http://imall.iteadstudio.com
rpocc 0:a275ef704eb8 7 *
rpocc 0:a275ef704eb8 8 * This library is based on the Arduino/chipKIT UTFT library by Henning
rpocc 0:a275ef704eb8 9 * Karlsen, http://www.rinkydinkelectronics.com/library.php?id=55
rpocc 0:a275ef704eb8 10 *
rpocc 0:a275ef704eb8 11 * Pressure sensivity added by Dmitry Shtatnov
rpocc 0:a275ef704eb8 12 *
rpocc 0:a275ef704eb8 13 * Copyright (C)2010-2015 Henning Karlsen. All right reserved.
rpocc 0:a275ef704eb8 14 *
rpocc 0:a275ef704eb8 15 * Copyright (C)2016 Dmitry Shtatnov. All right reserved.
rpocc 0:a275ef704eb8 16 * http://modularsynth.ru/
rpocc 0:a275ef704eb8 17 *
rpocc 0:a275ef704eb8 18 * This library is free software; you can redistribute it and/or
rpocc 0:a275ef704eb8 19 * modify it under the terms of the GNU Lesser General Public
rpocc 0:a275ef704eb8 20 * License as published by the Free Software Foundation; either
rpocc 0:a275ef704eb8 21 * version 2.1 of the License, or (at your option) any later version.
rpocc 0:a275ef704eb8 22 *
rpocc 0:a275ef704eb8 23 * This library is distributed in the hope that it will be useful,
rpocc 0:a275ef704eb8 24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
rpocc 0:a275ef704eb8 25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
rpocc 0:a275ef704eb8 26 * Lesser General Public License for more details.
rpocc 0:a275ef704eb8 27 *
rpocc 0:a275ef704eb8 28 * You should have received a copy of the GNU Lesser General Public
rpocc 0:a275ef704eb8 29 * License along with this library; if not, write to:
rpocc 0:a275ef704eb8 30 *
rpocc 0:a275ef704eb8 31 * Free Software Foundation, Inc.
rpocc 0:a275ef704eb8 32 * 51 Franklin St, 5th Floor, Boston, MA 02110-1301, USA
rpocc 0:a275ef704eb8 33 *
rpocc 0:a275ef704eb8 34 *********************************************************************/
rpocc 0:a275ef704eb8 35
rpocc 0:a275ef704eb8 36 #include "mbed.h"
rpocc 0:a275ef704eb8 37
rpocc 0:a275ef704eb8 38 #ifndef UTouch_h
rpocc 0:a275ef704eb8 39 #define UTouch_h
rpocc 0:a275ef704eb8 40
rpocc 0:a275ef704eb8 41 #ifdef __cplusplus
rpocc 0:a275ef704eb8 42 extern "C" {
rpocc 0:a275ef704eb8 43 #endif
rpocc 0:a275ef704eb8 44
rpocc 0:a275ef704eb8 45 /** Represents a Touchscreen instance.
rpocc 0:a275ef704eb8 46 *
rpocc 0:a275ef704eb8 47 * This is the utility class, through which the XPT2046 touchscreen can be manipulated
rpocc 0:a275ef704eb8 48 * How to use:
rpocc 0:a275ef704eb8 49 * \code
rpocc 0:a275ef704eb8 50 * // If you are using TFT-320QVT TFT LCD module or similar, you also have to add
rpocc 0:a275ef704eb8 51 * // SSD1289 library by Todor Todorov or modified version by Dmitry Shtatnov
rpocc 0:a275ef704eb8 52 *
rpocc 0:a275ef704eb8 53 * #include "mbed.h"
rpocc 0:a275ef704eb8 54 * #include "ssd1289.h"
rpocc 0:a275ef704eb8 55 * #include "UTouch.h"
rpocc 0:a275ef704eb8 56 * PortOut LCDPA(PortA,0xFF00);
rpocc 0:a275ef704eb8 57 * PortOut LCDPC(PortC,0x00FF);
rpocc 0:a275ef704eb8 58 * // CS, REST, RS, WR, DATA, BL, RD
rpocc 0:a275ef704eb8 59 * SSD1289_LCD myGLCD(PB_3, PB_4, PB_0, PB_1, &LCDPA, &LCDPC, NC, PB_2);
rpocc 0:a275ef704eb8 60 *
rpocc 0:a275ef704eb8 61 * UTouch myTouch(PB_9, PB_8, PB_7, PB_6, PB_5);
rpocc 0:a275ef704eb8 62 *
rpocc 0:a275ef704eb8 63 * int main() {
rpocc 0:a275ef704eb8 64 * myGLCD.Initialize();
rpocc 0:a275ef704eb8 65 * myGLCD.SetBackground(COLOR_WHITE);
rpocc 0:a275ef704eb8 66 * myGLCD.SetForeground(COLOR_BLACK);
rpocc 0:a275ef704eb8 67 * myGLCD.FillScreen(COLOR_WHITE);
rpocc 0:a275ef704eb8 68 * myTouch.InitTouch();
rpocc 0:a275ef704eb8 69 * myTouch.SetPrecision(PREC_HI);
rpocc 0:a275ef704eb8 70 * while(1==1)
rpocc 0:a275ef704eb8 71 * {
rpocc 0:a275ef704eb8 72 * if (myTouch.DataAvailable())
rpocc 0:a275ef704eb8 73 * {
rpocc 0:a275ef704eb8 74 * if(myTouch.Read())
rpocc 0:a275ef704eb8 75 * {
rpocc 0:a275ef704eb8 76 * x = myTouch.GetX();
rpocc 0:a275ef704eb8 77 * y = myTouch.GetY();
rpocc 0:a275ef704eb8 78 * myGLCD.DrawPixel(x, y, COLOR_BLACK);
rpocc 0:a275ef704eb8 79 * }
rpocc 0:a275ef704eb8 80 * }
rpocc 0:a275ef704eb8 81 * }
rpocc 0:a275ef704eb8 82 * }
rpocc 0:a275ef704eb8 83 *
rpocc 0:a275ef704eb8 84 * \endcode
rpocc 0:a275ef704eb8 85 * \version 0.1
rpocc 0:a275ef704eb8 86 * \author Dmitry Shtatnov
rpocc 0:a275ef704eb8 87 */
rpocc 0:a275ef704eb8 88
rpocc 0:a275ef704eb8 89
rpocc 0:a275ef704eb8 90 #define UTOUCH_VERSION 124
rpocc 0:a275ef704eb8 91
rpocc 0:a275ef704eb8 92 // *** Hardwarespecific defines ***
rpocc 0:a275ef704eb8 93 #define swap(type, i, j) {type t = i; i = j; j = t;}
rpocc 0:a275ef704eb8 94
rpocc 0:a275ef704eb8 95 #define LOW 0
rpocc 0:a275ef704eb8 96 #define HIGH 1
rpocc 0:a275ef704eb8 97
rpocc 0:a275ef704eb8 98 #define PORTRAIT 0
rpocc 0:a275ef704eb8 99 #define LANDSCAPE 1
rpocc 0:a275ef704eb8 100
rpocc 0:a275ef704eb8 101 #define PREC_LOW 1
rpocc 0:a275ef704eb8 102 #define PREC_MEDIUM 2
rpocc 0:a275ef704eb8 103 #define PREC_HI 3
rpocc 0:a275ef704eb8 104 #define PREC_EXTREME 4
rpocc 0:a275ef704eb8 105
rpocc 0:a275ef704eb8 106 #define byte uint8_t
rpocc 0:a275ef704eb8 107 #define word uint16_t
rpocc 0:a275ef704eb8 108 class UTouch
rpocc 0:a275ef704eb8 109 {
rpocc 0:a275ef704eb8 110 public:
rpocc 0:a275ef704eb8 111 int16_t TP_X ,TP_Y, TP_Z1, TP_Z2;
rpocc 0:a275ef704eb8 112
rpocc 0:a275ef704eb8 113 UTouch(PinName tclk, PinName tcs, PinName tdin, PinName dout, PinName irq);
rpocc 0:a275ef704eb8 114
rpocc 0:a275ef704eb8 115 void InitTouch(byte orientation = LANDSCAPE);
rpocc 0:a275ef704eb8 116 bool Read();
rpocc 0:a275ef704eb8 117 bool DataAvailable();
rpocc 0:a275ef704eb8 118 int16_t GetX();
rpocc 0:a275ef704eb8 119 int16_t GetY();
rpocc 0:a275ef704eb8 120 void SetPrecision(byte precision);
rpocc 0:a275ef704eb8 121
rpocc 0:a275ef704eb8 122 void CalibrateRead();
rpocc 0:a275ef704eb8 123 int16_t GetPressure();
rpocc 0:a275ef704eb8 124 void SetTreshold(int16_t trshLow, int16_t trshHigh);
rpocc 0:a275ef704eb8 125
rpocc 0:a275ef704eb8 126 protected:
rpocc 0:a275ef704eb8 127 int16_t GetXraw();
rpocc 0:a275ef704eb8 128 int16_t GetYraw();
rpocc 0:a275ef704eb8 129 int16_t GetZ1raw();
rpocc 0:a275ef704eb8 130 int16_t GetZ2raw();
rpocc 0:a275ef704eb8 131 DigitalOut P_CLK, P_CS, P_DIN;
rpocc 0:a275ef704eb8 132 DigitalIn P_DOUT;
rpocc 0:a275ef704eb8 133 DigitalInOut P_IRQ;
rpocc 0:a275ef704eb8 134 long _default_orientation;
rpocc 0:a275ef704eb8 135 byte orient;
rpocc 0:a275ef704eb8 136 byte prec;
rpocc 0:a275ef704eb8 137 byte display_model;
rpocc 0:a275ef704eb8 138 long disp_x_size, disp_y_size, default_orientation;
rpocc 0:a275ef704eb8 139 long touch_x_left, touch_x_right, touch_y_top, touch_y_bottom;
rpocc 0:a275ef704eb8 140
rpocc 0:a275ef704eb8 141 void touch_WriteData(byte data);
rpocc 0:a275ef704eb8 142 word touch_ReadData();
rpocc 0:a275ef704eb8 143 int16_t touch_tresholdLow;
rpocc 0:a275ef704eb8 144 int16_t touch_tresholdHigh;
rpocc 0:a275ef704eb8 145 int16_t touch_getrawdata(uint8_t code);
rpocc 0:a275ef704eb8 146 };
rpocc 0:a275ef704eb8 147
rpocc 0:a275ef704eb8 148 #ifdef __cplusplus
rpocc 0:a275ef704eb8 149 }
rpocc 0:a275ef704eb8 150 #endif
rpocc 0:a275ef704eb8 151
rpocc 0:a275ef704eb8 152 #endif