Pallavi Prasad
uVGA II for display using vga
Revision 0:6741e7724181, committed 2012-10-11
- Comitter:
- pprasad7
- Date:
- Thu Oct 11 20:12:02 2012 +0000
- Commit message:
- hangman
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_4DGL.h Thu Oct 11 20:12:02 2012 +0000
@@ -0,0 +1,285 @@
+//
+// TFT_4DGL is a class to drive 4D Systems TFT touch screens
+//
+// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
+//
+// TFT_4DGL is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// TFT_4DGL is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
+
+// @author Stephane Rochon
+
+#include "mbed.h"
+#include <stdarg.h>
+#include <stdio.h>
+// Debug Verbose on terminal enabled
+#ifndef DEBUGMODE
+#define DEBUGMODE 1
+#endif
+
+// Common WAIT value in millisecond
+#define TEMPO 5
+
+// 4DGL Functions values
+#define AUTOBAUD '\x55'
+#define CLS '\x45'
+#define BAUDRATE '\x51'
+#define VERSION '\x56'
+#define BCKGDCOLOR '\x42'
+#define DISPCONTROL '\x59'
+#define SETVOLUME '\x76'
+#define CIRCLE '\x43'
+#define TRIANGLE '\x47'
+#define LINE '\x4C'
+#define RECTANGLE '\x72'
+#define ELLIPSE '\x65'
+#define PIXEL '\x50'
+#define READPIXEL '\x52'
+#define SCREENCOPY '\x63'
+#define PENSIZE '\x70'
+#define SETFONT '\x46'
+#define TEXTMODE '\x4F'
+#define TEXTCHAR '\x54'
+#define GRAPHCHAR '\x74'
+#define TEXTSTRING '\x73'
+#define GRAPHSTRING '\x53'
+#define TEXTBUTTON '\x62'
+#define GETTOUCH '\x6F'
+#define WAITTOUCH '\x77'
+#define SETTOUCH '\x75'
+
+
+// Screen answers
+#define ACK '\x06'
+#define NAK '\x15'
+
+// Screen states
+#define OFF '\x00'
+#define ON '\x01'
+
+// Graphics modes
+#define SOLID '\x00'
+#define WIREFRAME '\x01'
+
+// Text modes
+#define TRANSPARENT '\x00'
+#define OPAQUE '\x01'
+
+// Fonts Sizes
+#define FONT_5X7 '\x00'
+#define FONT_8X8 '\x01'
+#define FONT_8X12 '\x02'
+#define FONT_12X16 '\x03'
+
+// Touch Values
+#define WAIT '\x00'
+#define PRESS '\x01'
+#define RELEASE '\x02'
+#define MOVE '\x03'
+#define STATUS '\x04'
+#define GETPOSITION '\x05'
+
+// Data speed
+#define BAUD_110 '\x00'
+#define BAUD_300 '\x01'
+#define BAUD_600 '\x02'
+#define BAUD_1200 '\x03'
+#define BAUD_2400 '\x04'
+#define BAUD_4800 '\x05'
+#define BAUD_9600 '\x06'
+#define BAUD_14400 '\x07'
+#define BAUD_19200 '\x09'
+#define BAUD_31250 '\x09'
+#define BAUD_38400 '\x0A'
+#define BAUD_56000 '\x0B'
+#define BAUD_57600 '\x0C'
+#define BAUD_115200 '\x0D'
+#define BAUD_128000 '\x0E'
+#define BAUD_256000 '\x0F'
+
+// Defined Colors
+#define WHITE 0xFFFFFF
+#define BLACK 0x000000
+#define RED 0xFF0000
+#define GREEN 0x00FF00
+#define BLUE 0x0000FF
+#define LGREY 0xBFBFBF
+#define DGREY 0x5F5F5F
+
+// Mode data
+#define BACKLIGHT '\x00'
+#define DISPLAY '\x01'
+#define CONTRAST '\x02'
+#define POWER '\x03'
+#define ORIENTATION '\x04'
+#define TOUCH_CTRL '\x05'
+#define IMAGE_FORMAT '\x06'
+#define PROTECT_FAT '\x08'
+
+// change this to your specific screen (newer versions) if needed
+// Startup orientation is PORTRAIT so SIZE_X must be lesser than SIZE_Y
+#define SIZE_X 240
+#define SIZE_Y 320
+
+#define IS_LANDSCAPE 0
+#define IS_PORTRAIT 1
+
+// Screen orientation
+#define LANDSCAPE '\x01'
+#define LANDSCAPE_R '\x02'
+#define PORTRAIT '\x03'
+#define PORTRAIT_R '\x04'
+
+// Parameters
+#define ENABLE '\x00'
+#define DISABLE '\x01'
+#define RESET '\x02'
+
+#define NEW '\x00'
+#define OLD '\x01'
+
+#define DOWN '\x00'
+#define UP '\x01'
+
+#define PROTECT '\x00'
+#define UNPROTECT '\x02'
+
+//**************************************************************************
+// \class TFT_4DGL TFT_4DGL.h
+// \brief This is the main class. It shoud be used like this : TFT_4GDL myLCD(p9,p10,p11);
+/**
+Example:
+* @code
+* // Display a white circle on the screen
+* #include "mbed.h"
+* #include " TFT_4DGL.h"
+*
+* TFT_4GDL myLCD(p9,p10,p11);
+*
+* int main() {
+* myLCD.circle(120, 160, 80, WHITE);
+* }
+* @endcode
+*/
+
+class TFT_4DGL {
+
+public :
+
+ TFT_4DGL(PinName tx, PinName rx, PinName rst);
+
+// General Commands *******************************************************************************
+
+/** Clear the entire screen using the current background colour */
+ void cls();
+
+/** Reset screen */
+ void reset();
+
+/** Launch Autobaud for serial communication. This function is automatically called at startup */
+ void autobaud();
+/** Set serial Baud rate (both sides : screen and mbed)
+* @param Speed Correct BAUD value (see TFT_4DGL.h)
+*/
+ void baudrate(int speed);
+
+/** Set background colour to the specified value
+* @param color in HEX RGB like 0xFF00FF
+*/
+ void background_color(int color);
+
+/** Set screen display mode to specific values
+* @param mode See 4DGL documentation
+* @param value See 4DGL documentation
+*/
+ void display_control(char mode, char value);
+
+/** Set internal speaker to specified value
+* @param value Correct range is 8 - 127
+*/
+ void set_volume(char value);
+
+// Graphics Commands *******************************************************************************
+
+/** Draw a circle centered at x,y with a radius and a colour. It uses Pen Size stored value to draw a solid or wireframe circle
+* @param x Horizontal position of the circle centre
+* @param y Vertical position of the circle centre
+* @param radius Radius of the circle
+* @param color Circle color in HEX RGB like 0xFF00FF
+*/
+ void circle(int x , int y , int radius, int color);
+
+ void triangle(int, int, int, int, int, int, int);
+ void line(int, int, int, int, int);
+ void rectangle(int, int, int, int, int);
+ void ellipse(int, int, int, int, int);
+ void pixel(int, int, int);
+ int read_pixel(int, int);
+ void screen_copy(int, int, int, int, int, int);
+ void pen_size(char);
+
+// Texts Commands
+ void set_font(char);
+ void text_mode(char);
+ void text_char(char, char, char, int);
+ void graphic_char(char, int, int, int, char, char);
+ void text_string(char *, char, char, char, int);
+ void graphic_string(char *, int, int, char, int, char, char);
+ void text_button(char *, char, int, int, int, char, int, char, char);
+
+
+ void locate(char, char);
+ void color(int);
+ void putc(char);
+ void puts(char *);
+
+// Touch Command
+ void touch_mode(char);
+ void get_touch(int *, int *);
+ void wait_touch(int);
+ void set_touch(int, int, int, int);
+ int touch_status(void);
+
+// Screen Data
+ int type;
+ int revision;
+ int firmware;
+ int reserved1;
+ int reserved2;
+
+// Text data
+ char current_col;
+ char current_row;
+ int current_color;
+ char current_font;
+ char current_orientation;
+ char max_col;
+ char max_row;
+
+protected :
+
+ Serial _cmd;
+ DigitalOut _rst;
+
+ void freeBUFFER (void);
+ void writeBYTE (char);
+ int writeCOMMAND(char *, int);
+ int readVERSION (char *, int);
+ void getTOUCH (char *, int, int *,int *);
+ int getSTATUS (char *, int);
+ void version (void);
+#if DEBUGMODE
+ Serial pc;
+#endif // DEBUGMODE
+};
+
+typedef unsigned char BYTE;
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_4DGL_Graphics.cpp Thu Oct 11 20:12:02 2012 +0000
@@ -0,0 +1,259 @@
+//
+// TFT_4DGL is a class to drive 4D Systems TFT touch screens
+//
+// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
+//
+// TFT_4DGL is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// TFT_4DGL is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
+
+#include "mbed.h"
+#include "TFT_4DGL.h"
+
+#define ARRAY_SIZE(X) sizeof(X)/sizeof(X[0])
+
+//****************************************************************************************************
+void TFT_4DGL :: circle(int x, int y , int radius, int color) { // draw a circle in (x,y)
+ char command[9]= "";
+
+ command[0] = CIRCLE;
+
+ command[1] = (x >> 8) & 0xFF;
+ command[2] = x & 0xFF;
+
+ command[3] = (y >> 8) & 0xFF;
+ command[4] = y & 0xFF;
+
+ command[5] = (radius >> 8) & 0xFF;
+ command[6] = radius & 0xFF;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[7] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[8] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ writeCOMMAND(command, 9);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: triangle(int x1, int y1 , int x2, int y2, int x3, int y3, int color) { // draw a traingle
+ char command[15]= "";
+
+ command[0] = TRIANGLE;
+
+ command[1] = (x1 >> 8) & 0xFF;
+ command[2] = x1 & 0xFF;
+
+ command[3] = (y1 >> 8) & 0xFF;
+ command[4] = y1 & 0xFF;
+
+ command[5] = (x2 >> 8) & 0xFF;
+ command[6] = x2 & 0xFF;
+
+ command[7] = (y2 >> 8) & 0xFF;
+ command[8] = y2 & 0xFF;
+
+ command[9] = (x3 >> 8) & 0xFF;
+ command[10] = x3 & 0xFF;
+
+ command[11] = (y3 >> 8) & 0xFF;
+ command[12] = y3 & 0xFF;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[13] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[14] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ writeCOMMAND(command, 15);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: line(int x1, int y1 , int x2, int y2, int color) { // draw a line
+ char command[11]= "";
+
+ command[0] = LINE;
+
+ command[1] = (x1 >> 8) & 0xFF;
+ command[2] = x1 & 0xFF;
+
+ command[3] = (y1 >> 8) & 0xFF;
+ command[4] = y1 & 0xFF;
+
+ command[5] = (x2 >> 8) & 0xFF;
+ command[6] = x2 & 0xFF;
+
+ command[7] = (y2 >> 8) & 0xFF;
+ command[8] = y2 & 0xFF;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ writeCOMMAND(command, 11);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: rectangle(int x1, int y1 , int x2, int y2, int color) { // draw a rectangle
+ char command[11]= "";
+
+ command[0] = RECTANGLE;
+
+ command[1] = (x1 >> 8) & 0xFF;
+ command[2] = x1 & 0xFF;
+
+ command[3] = (y1 >> 8) & 0xFF;
+ command[4] = y1 & 0xFF;
+
+ command[5] = (x2 >> 8) & 0xFF;
+ command[6] = x2 & 0xFF;
+
+ command[7] = (y2 >> 8) & 0xFF;
+ command[8] = y2 & 0xFF;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ writeCOMMAND(command, 11);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: ellipse(int x, int y , int radius_x, int radius_y, int color) { // draw an ellipse
+ char command[11]= "";
+
+ command[0] = ELLIPSE;
+
+ command[1] = (x >> 8) & 0xFF;
+ command[2] = x & 0xFF;
+
+ command[3] = (y >> 8) & 0xFF;
+ command[4] = y & 0xFF;
+
+ command[5] = (radius_x >> 8) & 0xFF;
+ command[6] = radius_x & 0xFF;
+
+ command[7] = (radius_y >> 8) & 0xFF;
+ command[8] = radius_y & 0xFF;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ writeCOMMAND(command, 11);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: pixel(int x, int y, int color) { // draw a pixel
+ char command[7]= "";
+
+ command[0] = PIXEL;
+
+ command[1] = (x >> 8) & 0xFF;
+ command[2] = x & 0xFF;
+
+ command[3] = (y >> 8) & 0xFF;
+ command[4] = y & 0xFF;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[5] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[6] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ writeCOMMAND(command, 7);
+}
+
+//******************************************************************************************************
+int TFT_4DGL :: read_pixel(int x, int y) { // read screen info and populate data
+
+ char command[5]= "";
+
+ command[0] = READPIXEL;
+
+ command[1] = (x >> 8) & 0xFF;
+ command[2] = x & 0xFF;
+
+ command[3] = (y >> 8) & 0xFF;
+ command[4] = y & 0xFF;
+
+ int i, temp = 0, color = 0, resp = 0;
+ char response[2] = "";
+
+ freeBUFFER();
+
+ for (i = 0; i < 5; i++) { // send all chars to serial port
+ writeBYTE(command[i]);
+ }
+
+ while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
+
+ while (_cmd.readable() && resp < ARRAY_SIZE(response)) {
+ temp = _cmd.getc();
+ response[resp++] = (char)temp;
+ }
+
+ color = ((response[0] << 8) + response[1]);
+
+ return color; // WARNING : this is 16bits color, not 24bits... need to be fixed
+}
+
+//******************************************************************************************************
+void TFT_4DGL :: screen_copy(int xs, int ys , int xd, int yd , int width, int height) {
+
+ char command[13]= "";
+
+ command[0] = SCREENCOPY;
+
+ command[1] = (xs >> 8) & 0xFF;
+ command[2] = xs & 0xFF;
+
+ command[3] = (ys >> 8) & 0xFF;
+ command[4] = ys & 0xFF;
+
+ command[5] = (xd >> 8) & 0xFF;
+ command[6] = xd & 0xFF;
+
+ command[7] = (yd >> 8) & 0xFF;
+ command[8] = yd & 0xFF;
+
+ command[9] = (width >> 8) & 0xFF;
+ command[10] = width & 0xFF;
+
+ command[11] = (height >> 8) & 0xFF;
+ command[12] = height & 0xFF;
+
+ writeCOMMAND(command, 13);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: pen_size(char mode) { // set pen to SOLID or WIREFRAME
+ char command[2]= "";
+
+ command[0] = PENSIZE;
+ command[1] = mode;
+
+ writeCOMMAND(command, 2);
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_4DGL_Text.cpp Thu Oct 11 20:12:02 2012 +0000
@@ -0,0 +1,273 @@
+//
+// TFT_4DGL is a class to drive 4D Systems TFT touch screens
+//
+// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
+//
+// TFT_4DGL is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// TFT_4DGL is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
+
+#include "mbed.h"
+#include "TFT_4DGL.h"
+#include <stdarg.h>
+#include <stdio.h>
+
+
+//****************************************************************************************************
+void TFT_4DGL :: set_font(char mode) { // set font size
+ char command[2]= "";
+
+ int w, h, fx = 8, fy = 8;
+
+ command[0] = SETFONT;
+ command[1] = mode;
+
+ current_font = mode;
+
+ if (current_orientation == IS_PORTRAIT) {
+ w = SIZE_X;
+ h = SIZE_Y;
+ } else {
+ w = SIZE_Y;
+ h = SIZE_X;
+ }
+
+ switch (mode) {
+ case FONT_5X7 :
+ fx = 6;
+ fy = 8;
+ break;
+ case FONT_8X8 :
+ fx = 8;
+ fy = 8;
+ break;
+ case FONT_8X12 :
+ fx = 8;
+ fy = 12;
+ break;
+ case FONT_12X16 :
+ fx = 12;
+ fy = 16;
+ break;
+ }
+
+ max_col = w / fx;
+ max_row = h / fy;
+
+ writeCOMMAND(command, 2);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: text_mode(char mode) { // set text mode
+ char command[2]= "";
+
+ command[0] = TEXTMODE;
+ command[1] = mode;
+
+ writeCOMMAND(command, 2);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: text_char(char c, char col, char row, int color) { // draw a text char
+ char command[6]= "";
+
+ command[0] = TEXTCHAR;
+
+ command[1] = c;
+ command[2] = col;
+ command[3] = row;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[4] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[5] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ writeCOMMAND(command, 8);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: graphic_char(char c, int x, int y, int color, char width, char height) { // draw a graphic char
+ char command[10]= "";
+
+ command[0] = GRAPHCHAR;
+
+ command[1] = c;
+
+ command[2] = (x >> 8) & 0xFF;
+ command[3] = x & 0xFF;
+
+ command[4] = (y >> 8) & 0xFF;
+ command[5] = y & 0xFF;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ command[8] = width;
+
+ command[9] = height;
+
+ writeCOMMAND(command, 10);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: text_string(char *s, char col, char row, char font, int color) { // draw a text string
+
+ char command[1000]= "";
+ int size = strlen(s);
+ int i = 0;
+
+ command[0] = TEXTSTRING;
+
+ command[1] = col;
+ command[2] = row;
+
+ command[3] = font;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[4] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[5] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ for (i=0; i<size; i++) command[6+i] = s[i];
+
+ command[6+size] = 0;
+
+ writeCOMMAND(command, 7 + size);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: graphic_string(char *s, int x, int y, char font, int color, char width, char height) { // draw a text string
+
+ char command[1000]= "";
+ int size = strlen(s);
+ int i = 0;
+
+ command[0] = GRAPHSTRING;
+
+ command[1] = (x >> 8) & 0xFF;
+ command[2] = x & 0xFF;
+
+ command[3] = (y >> 8) & 0xFF;
+ command[4] = y & 0xFF;
+
+ command[5] = font;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ command[8] = width;
+
+ command[9] = height;
+
+ for (i=0; i<size; i++) command[10+i] = s[i];
+
+ command[10+size] = 0;
+
+ writeCOMMAND(command, 11 + size);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: text_button(char *s, char mode, int x, int y, int button_color, char font, int text_color, char width, char height) { // draw a text string
+
+ char command[1000]= "";
+ int size = strlen(s);
+ int i = 0, red5, green6, blue5;
+
+ command[0] = TEXTBUTTON;
+
+ command[1] = mode;
+
+ command[2] = (x >> 8) & 0xFF;
+ command[3] = x & 0xFF;
+
+ command[4] = (y >> 8) & 0xFF;
+ command[5] = y & 0xFF;
+
+ red5 = (button_color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ green6 = (button_color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ blue5 = (button_color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[6] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[7] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ command[8] = font;
+
+ red5 = (text_color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ green6 = (text_color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ blue5 = (text_color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[9] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[10] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ command[11] = width;
+
+ command[12] = height;
+
+ for (i=0; i<size; i++) command[13+i] = s[i];
+
+ command[13+size] = 0;
+
+ writeCOMMAND(command, 14 + size);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: locate(char col, char row) { // place text curssor at col, row
+ current_col = col;
+ current_row = row;
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: color(int color) { // set text color
+ current_color = color;
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: putc(char c) { // place char at current cursor position
+
+ text_char(c, current_col++, current_row, current_color);
+
+ if (current_col == max_col) {
+ current_col = 0;
+ current_row++;
+ }
+ if (current_row == max_row) {
+ current_row = 0;
+ }
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: puts(char *s) { // place string at current cursor position
+
+ text_string(s, current_col, current_row, current_font, current_color);
+
+ current_col += strlen(s);
+
+ if (current_col >= max_col) {
+ current_row += current_col / max_col;
+ current_col %= max_col;
+ }
+ if (current_row >= max_row) {
+ current_row %= max_row;
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_4DGL_Touch.cpp Thu Oct 11 20:12:02 2012 +0000
@@ -0,0 +1,89 @@
+//
+// TFT_4DGL is a class to drive 4D Systems TFT touch screens
+//
+// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
+//
+// TFT_4DGL is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// TFT_4DGL is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
+
+#include "mbed.h"
+#include "TFT_4DGL.h"
+
+//******************************************************************************************************
+void TFT_4DGL :: touch_mode(char mode) { // Send touch mode (WAIT, PRESS, RELEASE or MOVE)
+
+ char command[2]= "";
+
+ command[0] = GETTOUCH;
+ command[1] = mode;
+
+ writeCOMMAND(command, 2);
+}
+
+//******************************************************************************************************
+void TFT_4DGL :: get_touch(int *x, int *y) { // Get the touch coordinates
+
+ char command[2] = "";
+
+ command[0] = GETTOUCH;
+ command[1] = GETPOSITION;
+
+ getTOUCH(command, 2, x, y);
+}
+
+//******************************************************************************************************
+int TFT_4DGL :: touch_status(void) { // Get the touch screen status
+
+ char command[2] = "";
+
+ command[0] = GETTOUCH;
+ command[1] = STATUS;
+
+ return getSTATUS(command, 2);
+}
+
+
+//******************************************************************************************************
+void TFT_4DGL :: wait_touch(int delay) { // wait until touch within a delay in milliseconds
+
+ char command[3]= "";
+
+ command[0] = WAITTOUCH;
+
+ command[1] = (delay >> 8) & 0xFF;
+ command[2] = delay & 0xFF;
+
+ writeCOMMAND(command, 3);
+}
+
+//******************************************************************************************************
+void TFT_4DGL :: set_touch(int x1, int y1 , int x2, int y2) { // define touch area
+
+ char command[9]= "";
+
+ command[0] = SETTOUCH;
+
+ command[1] = (x1 >> 8) & 0xFF;
+ command[2] = x1 & 0xFF;
+
+ command[3] = (y1 >> 8) & 0xFF;
+ command[4] = y1 & 0xFF;
+
+ command[5] = (x2 >> 8) & 0xFF;
+ command[6] = x2 & 0xFF;
+
+ command[7] = (y2 >> 8) & 0xFF;
+ command[8] = y2 & 0xFF;
+
+ writeCOMMAND(command, 9);
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_4DGL_main.cpp Thu Oct 11 20:12:02 2012 +0000
@@ -0,0 +1,387 @@
+//
+// TFT_4DGL is a class to drive 4D Systems TFT touch screens
+//
+// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
+//
+// TFT_4DGL is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// TFT_4DGL is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with TFT_4DGL. If not, see <http://www.gnu.org/licenses/>.
+
+#include "mbed.h"
+#include "TFT_4DGL.h"
+
+#define ARRAY_SIZE(X) sizeof(X)/sizeof(X[0])
+
+//Serial pc(USBTX,USBRX);
+
+//******************************************************************************************************
+TFT_4DGL :: TFT_4DGL(PinName tx, PinName rx, PinName rst) : _cmd(tx, rx),
+ _rst(rst)
+#if DEBUGMODE
+ ,pc(USBTX, USBRX)
+#endif // DEBUGMODE
+{ // Constructor
+
+#if DEBUGMODE
+ pc.baud(115200);
+
+ pc.printf("\n\n\n");
+ pc.printf("********************\n");
+ pc.printf("TFT_4DGL CONSTRUCTOR\n");
+ pc.printf("********************\n");
+#endif
+
+ _rst = 1; // put RESET pin to high to start TFT screen
+
+ reset();
+ autobaud(); // send autobaud command
+ version(); // get version information
+ cls(); // clear screen
+
+ current_col = 0; // initial cursor col
+ current_row = 0; // initial cursor row
+ current_color = WHITE; // initial text color
+ current_orientation = IS_PORTRAIT; // initial screen orientation
+
+ set_font(FONT_5X7); // initial font
+ text_mode(OPAQUE); // initial texr mode
+}
+
+//******************************************************************************************************
+void TFT_4DGL :: writeBYTE(char c) { // send a BYTE command to screen
+
+ _cmd.putc(c);
+ wait_ms(1);
+
+#if DEBUGMODE
+ pc.printf(" Char sent : 0x%02X\n",c);
+#endif
+
+}
+
+//******************************************************************************************************
+void TFT_4DGL :: freeBUFFER(void) { // Clear serial buffer before writing command
+
+ while (_cmd.readable()) _cmd.getc(); // clear buffer garbage
+}
+
+//******************************************************************************************************
+int TFT_4DGL :: writeCOMMAND(char *command, int number) { // send several BYTES making a command and return an answer
+
+#if DEBUGMODE
+ pc.printf("\n");
+ pc.printf("New COMMAND : 0x%02X\n", command[0]);
+#endif
+ int i, resp = 0;
+ freeBUFFER();
+
+ for (i = 0; i < number; i++) writeBYTE(command[i]); // send command to serial port
+
+ while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
+ if (_cmd.readable()) resp = _cmd.getc(); // read response if any
+ switch (resp) {
+ case ACK : // if OK return 1
+ resp = 1;
+ break;
+ case NAK : // if NOK return -1
+ resp = -1;
+ break;
+ default :
+ resp = 0; // else return 0
+ break;
+ }
+#if DEBUGMODE
+ pc.printf(" Answer received : %d\n",resp);
+#endif
+
+ return resp;
+}
+
+//**************************************************************************
+void TFT_4DGL :: reset() { // Reset Screen
+
+ _rst = 0; // put RESET pin to low
+ wait_ms(TEMPO); // wait a few milliseconds for command reception
+ _rst = 1; // put RESET back to high
+ wait(3); // wait 3s for screen to restart
+
+ freeBUFFER(); // clean buffer from possible garbage
+}
+
+//**************************************************************************
+void TFT_4DGL :: autobaud() { // send AutoBaud command (9600)
+ char command[1] = "";
+ command[0] = AUTOBAUD;
+ writeCOMMAND(command, 1);
+}
+
+//**************************************************************************
+void TFT_4DGL :: cls() { // clear screen
+ char command[1] = "";
+ command[0] = CLS;
+ writeCOMMAND(command, 1);
+}
+
+//**************************************************************************
+void TFT_4DGL :: version() { // get API version
+ char command[2] = "";
+ command[0] = VERSION;
+ command[1] = OFF;
+ readVERSION(command, 2);
+}
+
+//**************************************************************************
+void TFT_4DGL :: baudrate(int speed) { // set screen baud rate
+ char command[2]= "";
+ command[0] = BAUDRATE;
+ switch (speed) {
+ case 110 :
+ command[1] = BAUD_110;
+ break;
+ case 300 :
+ command[1] = BAUD_300;
+ break;
+ case 600 :
+ command[1] = BAUD_600;
+ break;
+ case 1200 :
+ command[1] = BAUD_1200;
+ break;
+ case 2400 :
+ command[1] = BAUD_2400;
+ break;
+ case 4800 :
+ command[1] = BAUD_4800;
+ break;
+ case 9600 :
+ command[1] = BAUD_9600;
+ break;
+ case 14400 :
+ command[1] = BAUD_14400;
+ break;
+ case 19200 :
+ command[1] = BAUD_19200;
+ break;
+ case 31250 :
+ command[1] = BAUD_31250;
+ break;
+ case 38400 :
+ command[1] = BAUD_38400;
+ break;
+ case 56000 :
+ command[1] = BAUD_56000;
+ break;
+ case 57600 :
+ command[1] = BAUD_57600;
+ break;
+ case 115200 :
+ command[1] = BAUD_115200;
+ break;
+ case 128000 :
+ command[1] = BAUD_128000;
+ break;
+ case 256000 :
+ command[1] = BAUD_256000;
+ break;
+ default :
+ command[1] = BAUD_9600;
+ speed = 9600;
+ break;
+ }
+
+ int i, resp = 0;
+
+ freeBUFFER();
+
+ for (i = 0; i <2; i++) writeBYTE(command[i]); // send command to serial port
+ _cmd.baud(speed); // set mbed to same speed
+
+ while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
+
+ if (_cmd.readable()) resp = _cmd.getc(); // read response if any
+ switch (resp) {
+ case ACK : // if OK return 1
+ resp = 1;
+ break;
+ case NAK : // if NOK return -1
+ resp = -1;
+ break;
+ default :
+ resp = 0; // else return 0
+ break;
+ }
+}
+
+//******************************************************************************************************
+int TFT_4DGL :: readVERSION(char *command, int number) { // read screen info and populate data
+
+ int i, temp = 0, resp = 0;
+ char response[5] = "";
+
+ freeBUFFER();
+
+ for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
+
+ while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
+
+ while (_cmd.readable() && resp < ARRAY_SIZE(response)) {
+ temp = _cmd.getc();
+ response[resp++] = (char)temp;
+ }
+ switch (resp) {
+ case 5 : // if OK populate data and return 1
+ type = response[0];
+ revision = response[1];
+ firmware = response[2];
+ reserved1 = response[3];
+ reserved2 = response[4];
+ resp = 1;
+ break;
+ default :
+ resp = 0; // else return 0
+ break;
+ }
+ return resp;
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: background_color(int color) { // set screen background color
+ char command[3]= ""; // input color is in 24bits like 0xRRGGBB
+
+ command[0] = BCKGDCOLOR;
+
+ int red5 = (color >> (16 + 3)) & 0x1F; // get red on 5 bits
+ int green6 = (color >> (8 + 2)) & 0x3F; // get green on 6 bits
+ int blue5 = (color >> (0 + 3)) & 0x1F; // get blue on 5 bits
+
+ command[1] = ((red5 << 3) + (green6 >> 3)) & 0xFF; // first part of 16 bits color
+ command[2] = ((green6 << 5) + (blue5 >> 0)) & 0xFF; // second part of 16 bits color
+
+ writeCOMMAND(command, 3);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: display_control(char mode, char value) { // set screen mode to value
+ char command[3]= "";
+
+ command[0] = DISPCONTROL;
+ command[1] = mode;
+ command[2] = value;
+
+ if (mode == ORIENTATION) {
+ switch (value) {
+ case LANDSCAPE :
+ current_orientation = IS_LANDSCAPE;
+ break;
+ case LANDSCAPE_R :
+ current_orientation = IS_LANDSCAPE;
+ break;
+ case PORTRAIT :
+ current_orientation = IS_PORTRAIT;
+ break;
+ case PORTRAIT_R :
+ current_orientation = IS_PORTRAIT;
+ break;
+ }
+ }
+ writeCOMMAND(command, 3);
+ set_font(current_font);
+}
+
+//****************************************************************************************************
+void TFT_4DGL :: set_volume(char value) { // set sound volume to value
+ char command[2]= "";
+
+ command[0] = SETVOLUME;
+ command[1] = value;
+
+ writeCOMMAND(command, 2);
+}
+
+
+//******************************************************************************************************
+void TFT_4DGL :: getTOUCH(char *command, int number, int *x, int *y) { // read screen info and populate data
+
+#if DEBUGMODE
+ pc.printf("\n");
+ pc.printf("New COMMAND : 0x%02X\n", command[0]);
+#endif
+ int i, temp = 0, resp = 0;
+ char response[5] = "";
+
+ freeBUFFER();
+
+ for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
+
+ while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
+
+ while (_cmd.readable() && resp < ARRAY_SIZE(response)) {
+ temp = _cmd.getc();
+ response[resp++] = (char)temp;
+ }
+
+#if DEBUGMODE
+ pc.printf(" Answer received %d : 0x%02X 0x%02X 0x%02X 0x%02X\n", resp, response[0], response[1], response[2], response[3]);
+#endif
+
+ switch (resp) {
+ case 4 : // if OK populate data
+ *x = ((response[0]<<8)+ response[1]) * (response[0] != 0xFF);
+ *y = ((response[2]<<8)+ response[3]) * (response[2] != 0xFF);
+ break;
+ default :
+ *x = -1;
+ *y = -1;
+ break;
+ }
+
+#if DEBUGMODE
+ pc.printf(" X,Y : %03d,%03d\n", *x, *y);
+#endif
+}
+
+//******************************************************************************************************
+int TFT_4DGL :: getSTATUS(char *command, int number) { // read screen info and populate data
+
+#if DEBUGMODE
+ pc.printf("\n");
+ pc.printf("New COMMAND : 0x%02X\n", command[0]);
+#endif
+
+ int i, temp = 0, resp = 0;
+ char response[5] = "";
+
+ freeBUFFER();
+
+ for (i = 0; i < number; i++) writeBYTE(command[i]); // send all chars to serial port
+
+ while (!_cmd.readable()) wait_ms(TEMPO); // wait for screen answer
+
+ while (_cmd.readable() && resp < ARRAY_SIZE(response)) {
+ temp = _cmd.getc();
+ response[resp++] = (char)temp;
+ }
+ switch (resp) {
+ case 4 :
+ resp = (int)response[1]; // if OK populate data
+ break;
+ default :
+ resp = -1; // else return 0
+ break;
+ }
+
+#if DEBUGMODE
+ pc.printf(" Answer received : %d\n", resp);
+#endif
+
+ return resp;
+}
\ No newline at end of file