Ahmed Hedait / Mbed 2 deprecated el16ah

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Dependencies:   mbed

N5110/N5110.h@0:1b04b9bacf5a, 2018-04-10 (annotated)

Committer:
ahmedhedait
Date:
Tue Apr 10 21:59:06 2018 +0000
Revision:
0:1b04b9bacf5a
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ahmedhedait 0:1b04b9bacf5a 1 #ifndef N5110_H
ahmedhedait 0:1b04b9bacf5a 2 #define N5110_H
ahmedhedait 0:1b04b9bacf5a 3
ahmedhedait 0:1b04b9bacf5a 4 #include "mbed.h"
ahmedhedait 0:1b04b9bacf5a 5
ahmedhedait 0:1b04b9bacf5a 6 // number of pixels on display
ahmedhedait 0:1b04b9bacf5a 7 #define WIDTH 84
ahmedhedait 0:1b04b9bacf5a 8 #define HEIGHT 48
ahmedhedait 0:1b04b9bacf5a 9 #define BANKS 6
ahmedhedait 0:1b04b9bacf5a 10
ahmedhedait 0:1b04b9bacf5a 11 /// Fill types for 2D shapes
ahmedhedait 0:1b04b9bacf5a 12 enum FillType {
ahmedhedait 0:1b04b9bacf5a 13 FILL_TRANSPARENT, ///< Transparent with outline
ahmedhedait 0:1b04b9bacf5a 14 FILL_BLACK, ///< Filled black
ahmedhedait 0:1b04b9bacf5a 15 FILL_WHITE, ///< Filled white (no outline)
ahmedhedait 0:1b04b9bacf5a 16 };
ahmedhedait 0:1b04b9bacf5a 17
ahmedhedait 0:1b04b9bacf5a 18 /** N5110 Class
ahmedhedait 0:1b04b9bacf5a 19 @brief Library for interfacing with Nokia 5110 LCD display (https://www.sparkfun.com/products/10168) using the hardware SPI on the mbed.
ahmedhedait 0:1b04b9bacf5a 20 @brief The display is powered from a GPIO pin meaning it can be controlled via software. The LED backlight is also software-controllable (via PWM pin).
ahmedhedait 0:1b04b9bacf5a 21 @brief Can print characters and strings to the display using the included 5x7 font.
ahmedhedait 0:1b04b9bacf5a 22 @brief The library also implements a screen buffer so that individual pixels on the display (84 x 48) can be set, cleared and read.
ahmedhedait 0:1b04b9bacf5a 23 @brief The library can print primitive shapes (lines, circles, rectangles)
ahmedhedait 0:1b04b9bacf5a 24 @brief Acknowledgements to Chris Yan's Nokia_5110 Library.
ahmedhedait 0:1b04b9bacf5a 25
ahmedhedait 0:1b04b9bacf5a 26 @brief Revision 1.3
ahmedhedait 0:1b04b9bacf5a 27
ahmedhedait 0:1b04b9bacf5a 28 @author Craig A. Evans
ahmedhedait 0:1b04b9bacf5a 29 @date 7th February 2017
ahmedhedait 0:1b04b9bacf5a 30
ahmedhedait 0:1b04b9bacf5a 31 @code
ahmedhedait 0:1b04b9bacf5a 32
ahmedhedait 0:1b04b9bacf5a 33 #include "mbed.h"
ahmedhedait 0:1b04b9bacf5a 34 #include "N5110.h"
ahmedhedait 0:1b04b9bacf5a 35
ahmedhedait 0:1b04b9bacf5a 36 // rows,cols
ahmedhedait 0:1b04b9bacf5a 37 int sprite[8][5] = {
ahmedhedait 0:1b04b9bacf5a 38 { 0,0,1,0,0 },
ahmedhedait 0:1b04b9bacf5a 39 { 0,1,1,1,0 },
ahmedhedait 0:1b04b9bacf5a 40 { 0,0,1,0,0 },
ahmedhedait 0:1b04b9bacf5a 41 { 0,1,1,1,0 },
ahmedhedait 0:1b04b9bacf5a 42 { 1,1,1,1,1 },
ahmedhedait 0:1b04b9bacf5a 43 { 1,1,1,1,1 },
ahmedhedait 0:1b04b9bacf5a 44 { 1,1,0,1,1 },
ahmedhedait 0:1b04b9bacf5a 45 { 1,1,0,1,1 },
ahmedhedait 0:1b04b9bacf5a 46 };
ahmedhedait 0:1b04b9bacf5a 47
ahmedhedait 0:1b04b9bacf5a 48 // VCC,SCE,RST,D/C,MOSI,SCLK,LED
ahmedhedait 0:1b04b9bacf5a 49 //N5110 lcd(p7,p8,p9,p10,p11,p13,p21); // LPC1768 - pwr from GPIO
ahmedhedait 0:1b04b9bacf5a 50 N5110 lcd(p8,p9,p10,p11,p13,p21); // LPC1768 - powered from +3V3 - JP1 in 2/3 position
ahmedhedait 0:1b04b9bacf5a 51 //N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11); // K64F - pwr from 3V3
ahmedhedait 0:1b04b9bacf5a 52
ahmedhedait 0:1b04b9bacf5a 53 int main()
ahmedhedait 0:1b04b9bacf5a 54 {
ahmedhedait 0:1b04b9bacf5a 55 // first need to initialise display
ahmedhedait 0:1b04b9bacf5a 56 lcd.init();
ahmedhedait 0:1b04b9bacf5a 57
ahmedhedait 0:1b04b9bacf5a 58 // change set contrast in range 0.0 to 1.0
ahmedhedait 0:1b04b9bacf5a 59 // 0.4 appears to be a good starting point
ahmedhedait 0:1b04b9bacf5a 60 lcd.setContrast(0.4);
ahmedhedait 0:1b04b9bacf5a 61
ahmedhedait 0:1b04b9bacf5a 62 while(1) {
ahmedhedait 0:1b04b9bacf5a 63
ahmedhedait 0:1b04b9bacf5a 64 // these are default settings so not strictly needed
ahmedhedait 0:1b04b9bacf5a 65 lcd.normalMode(); // normal colour mode
ahmedhedait 0:1b04b9bacf5a 66 lcd.setBrightness(0.5); // put LED backlight on 50%
ahmedhedait 0:1b04b9bacf5a 67
ahmedhedait 0:1b04b9bacf5a 68 lcd.clear();
ahmedhedait 0:1b04b9bacf5a 69 // x origin, y origin, rows, cols, sprite
ahmedhedait 0:1b04b9bacf5a 70 lcd.drawSprite(20,6,8,5,(int *)sprite);
ahmedhedait 0:1b04b9bacf5a 71 lcd.refresh();
ahmedhedait 0:1b04b9bacf5a 72 wait(5.0);
ahmedhedait 0:1b04b9bacf5a 73
ahmedhedait 0:1b04b9bacf5a 74 lcd.clear(); // clear buffer at start of every loop
ahmedhedait 0:1b04b9bacf5a 75 // can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display)
ahmedhedait 0:1b04b9bacf5a 76 lcd.printString("Hello, World!",0,0);
ahmedhedait 0:1b04b9bacf5a 77
ahmedhedait 0:1b04b9bacf5a 78 char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
ahmedhedait 0:1b04b9bacf5a 79 // so can display a string of a maximum 14 characters in length
ahmedhedait 0:1b04b9bacf5a 80 // or create formatted strings - ensure they aren't more than 14 characters long
ahmedhedait 0:1b04b9bacf5a 81 int temperature = 27;
ahmedhedait 0:1b04b9bacf5a 82 int length = sprintf(buffer,"T = %2d C",temperature); // print formatted data to buffer
ahmedhedait 0:1b04b9bacf5a 83 // it is important the format specifier ensures the length will fit in the buffer
ahmedhedait 0:1b04b9bacf5a 84 if (length <= 14) // if string will fit on display (assuming printing at x=0)
ahmedhedait 0:1b04b9bacf5a 85 lcd.printString(buffer,0,1); // display on screen
ahmedhedait 0:1b04b9bacf5a 86
ahmedhedait 0:1b04b9bacf5a 87 float pressure = 1012.3; // same idea with floats
ahmedhedait 0:1b04b9bacf5a 88 length = sprintf(buffer,"P = %.2f mb",pressure);
ahmedhedait 0:1b04b9bacf5a 89 if (length <= 14)
ahmedhedait 0:1b04b9bacf5a 90 lcd.printString(buffer,0,2);
ahmedhedait 0:1b04b9bacf5a 91
ahmedhedait 0:1b04b9bacf5a 92 // can also print individual characters at specified place
ahmedhedait 0:1b04b9bacf5a 93 lcd.printChar('X',5,3);
ahmedhedait 0:1b04b9bacf5a 94
ahmedhedait 0:1b04b9bacf5a 95 // draw a line across the display at y = 40 pixels (origin top-left)
ahmedhedait 0:1b04b9bacf5a 96 for (int i = 0; i < WIDTH; i++) {
ahmedhedait 0:1b04b9bacf5a 97 lcd.setPixel(i,40,true);
ahmedhedait 0:1b04b9bacf5a 98 }
ahmedhedait 0:1b04b9bacf5a 99 // need to refresh display after setting pixels or writing strings
ahmedhedait 0:1b04b9bacf5a 100 lcd.refresh();
ahmedhedait 0:1b04b9bacf5a 101 wait(5.0);
ahmedhedait 0:1b04b9bacf5a 102
ahmedhedait 0:1b04b9bacf5a 103 // can check status of pixel using getPixel(x,y);
ahmedhedait 0:1b04b9bacf5a 104 lcd.clear(); // clear buffer
ahmedhedait 0:1b04b9bacf5a 105 lcd.setPixel(2,2,true); // set random pixel in buffer
ahmedhedait 0:1b04b9bacf5a 106 lcd.refresh();
ahmedhedait 0:1b04b9bacf5a 107 wait(1.0);
ahmedhedait 0:1b04b9bacf5a 108
ahmedhedait 0:1b04b9bacf5a 109 int pixel_to_test = lcd.getPixel(2,2);
ahmedhedait 0:1b04b9bacf5a 110
ahmedhedait 0:1b04b9bacf5a 111 if ( pixel_to_test ) {
ahmedhedait 0:1b04b9bacf5a 112 lcd.printString("2,2 is set",0,4);
ahmedhedait 0:1b04b9bacf5a 113 }
ahmedhedait 0:1b04b9bacf5a 114
ahmedhedait 0:1b04b9bacf5a 115 // this one shouldn't be set
ahmedhedait 0:1b04b9bacf5a 116 lcd.setPixel(3,3,false); // clear random pixel in buffer
ahmedhedait 0:1b04b9bacf5a 117 lcd.refresh();
ahmedhedait 0:1b04b9bacf5a 118 pixel_to_test = lcd.getPixel(3,3);
ahmedhedait 0:1b04b9bacf5a 119
ahmedhedait 0:1b04b9bacf5a 120 if ( pixel_to_test == 0 ) {
ahmedhedait 0:1b04b9bacf5a 121 lcd.printString("3,3 is clear",0,5);
ahmedhedait 0:1b04b9bacf5a 122 }
ahmedhedait 0:1b04b9bacf5a 123
ahmedhedait 0:1b04b9bacf5a 124 lcd.refresh();
ahmedhedait 0:1b04b9bacf5a 125 wait(4.0);
ahmedhedait 0:1b04b9bacf5a 126
ahmedhedait 0:1b04b9bacf5a 127 lcd.clear(); // clear buffer
ahmedhedait 0:1b04b9bacf5a 128 lcd.inverseMode(); // invert colours
ahmedhedait 0:1b04b9bacf5a 129 lcd.setBrightness(1.0); // put LED backlight on full
ahmedhedait 0:1b04b9bacf5a 130
ahmedhedait 0:1b04b9bacf5a 131 float array[84];
ahmedhedait 0:1b04b9bacf5a 132
ahmedhedait 0:1b04b9bacf5a 133 for (int i = 0; i < 84; i++) {
ahmedhedait 0:1b04b9bacf5a 134 array[i] = 0.5 + 0.5*sin(i*2*3.14/84);
ahmedhedait 0:1b04b9bacf5a 135 }
ahmedhedait 0:1b04b9bacf5a 136
ahmedhedait 0:1b04b9bacf5a 137 // can also plot graphs - 84 elements only
ahmedhedait 0:1b04b9bacf5a 138 // values must be in range 0.0 - 1.0
ahmedhedait 0:1b04b9bacf5a 139 lcd.plotArray(array);
ahmedhedait 0:1b04b9bacf5a 140 lcd.refresh();
ahmedhedait 0:1b04b9bacf5a 141 wait(5.0);
ahmedhedait 0:1b04b9bacf5a 142
ahmedhedait 0:1b04b9bacf5a 143 lcd.clear();
ahmedhedait 0:1b04b9bacf5a 144 lcd.normalMode(); // normal colour mode back
ahmedhedait 0:1b04b9bacf5a 145 lcd.setBrightness(0.5); // put LED backlight on 50%
ahmedhedait 0:1b04b9bacf5a 146
ahmedhedait 0:1b04b9bacf5a 147 // example of drawing lines
ahmedhedait 0:1b04b9bacf5a 148 for (int x = 0; x < WIDTH ; x+=10) {
ahmedhedait 0:1b04b9bacf5a 149 // x0,y0,x1,y1,type 0-white,1-black,2-dotted
ahmedhedait 0:1b04b9bacf5a 150 lcd.drawLine(0,0,x,HEIGHT,2);
ahmedhedait 0:1b04b9bacf5a 151 }
ahmedhedait 0:1b04b9bacf5a 152 lcd.refresh(); // refresh after drawing shapes
ahmedhedait 0:1b04b9bacf5a 153 wait(5.0);
ahmedhedait 0:1b04b9bacf5a 154
ahmedhedait 0:1b04b9bacf5a 155
ahmedhedait 0:1b04b9bacf5a 156 lcd.clear();
ahmedhedait 0:1b04b9bacf5a 157 // example of how to draw circles
ahmedhedait 0:1b04b9bacf5a 158 lcd.drawCircle(WIDTH/2,HEIGHT/2,20,FILL_BLACK); // x,y,radius,black fill
ahmedhedait 0:1b04b9bacf5a 159 lcd.drawCircle(WIDTH/2,HEIGHT/2,10,FILL_WHITE); // x,y,radius,white fill
ahmedhedait 0:1b04b9bacf5a 160 lcd.drawCircle(WIDTH/2,HEIGHT/2,30,FILL_TRANSPARENT); // x,y,radius,transparent with outline
ahmedhedait 0:1b04b9bacf5a 161 lcd.refresh(); // refresh after drawing shapes
ahmedhedait 0:1b04b9bacf5a 162 wait(5.0);
ahmedhedait 0:1b04b9bacf5a 163
ahmedhedait 0:1b04b9bacf5a 164 lcd.clear();
ahmedhedait 0:1b04b9bacf5a 165 // example of how to draw rectangles
ahmedhedait 0:1b04b9bacf5a 166 // origin x,y,width,height,type
ahmedhedait 0:1b04b9bacf5a 167 lcd.drawRect(10,10,50,30,FILL_BLACK); // filled black rectangle
ahmedhedait 0:1b04b9bacf5a 168 lcd.drawRect(15,15,20,10,FILL_WHITE); // filled white rectange (no outline)
ahmedhedait 0:1b04b9bacf5a 169 lcd.drawRect(2,2,70,40,FILL_TRANSPARENT); // transparent, just outline
ahmedhedait 0:1b04b9bacf5a 170 lcd.refresh(); // refresh after drawing shapes
ahmedhedait 0:1b04b9bacf5a 171 wait(5.0);
ahmedhedait 0:1b04b9bacf5a 172
ahmedhedait 0:1b04b9bacf5a 173 }
ahmedhedait 0:1b04b9bacf5a 174 }
ahmedhedait 0:1b04b9bacf5a 175
ahmedhedait 0:1b04b9bacf5a 176
ahmedhedait 0:1b04b9bacf5a 177 @endcode
ahmedhedait 0:1b04b9bacf5a 178 */
ahmedhedait 0:1b04b9bacf5a 179 class N5110
ahmedhedait 0:1b04b9bacf5a 180 {
ahmedhedait 0:1b04b9bacf5a 181 private:
ahmedhedait 0:1b04b9bacf5a 182 // objects
ahmedhedait 0:1b04b9bacf5a 183 SPI *_spi;
ahmedhedait 0:1b04b9bacf5a 184 PwmOut *_led;
ahmedhedait 0:1b04b9bacf5a 185 DigitalOut *_pwr;
ahmedhedait 0:1b04b9bacf5a 186 DigitalOut *_sce;
ahmedhedait 0:1b04b9bacf5a 187 DigitalOut *_rst;
ahmedhedait 0:1b04b9bacf5a 188 DigitalOut *_dc;
ahmedhedait 0:1b04b9bacf5a 189
ahmedhedait 0:1b04b9bacf5a 190 // variables
ahmedhedait 0:1b04b9bacf5a 191 unsigned char buffer[84][6]; // screen buffer - the 6 is for the banks - each one is 8 bits;
ahmedhedait 0:1b04b9bacf5a 192
ahmedhedait 0:1b04b9bacf5a 193 public:
ahmedhedait 0:1b04b9bacf5a 194 /** Create a N5110 object connected to the specified pins
ahmedhedait 0:1b04b9bacf5a 195 *
ahmedhedait 0:1b04b9bacf5a 196 * @param pwr Pin connected to Vcc on the LCD display (pin 1)
ahmedhedait 0:1b04b9bacf5a 197 * @param sce Pin connected to chip enable (pin 3)
ahmedhedait 0:1b04b9bacf5a 198 * @param rst Pin connected to reset (pin 4)
ahmedhedait 0:1b04b9bacf5a 199 * @param dc Pin connected to data/command select (pin 5)
ahmedhedait 0:1b04b9bacf5a 200 * @param mosi Pin connected to data input (MOSI) (pin 6)
ahmedhedait 0:1b04b9bacf5a 201 * @param sclk Pin connected to serial clock (SCLK) (pin 7)
ahmedhedait 0:1b04b9bacf5a 202 * @param led Pin connected to LED backlight (must be PWM) (pin 8)
ahmedhedait 0:1b04b9bacf5a 203 *
ahmedhedait 0:1b04b9bacf5a 204 */
ahmedhedait 0:1b04b9bacf5a 205 N5110(PinName const pwrPin,
ahmedhedait 0:1b04b9bacf5a 206 PinName const scePin,
ahmedhedait 0:1b04b9bacf5a 207 PinName const rstPin,
ahmedhedait 0:1b04b9bacf5a 208 PinName const dcPin,
ahmedhedait 0:1b04b9bacf5a 209 PinName const mosiPin,
ahmedhedait 0:1b04b9bacf5a 210 PinName const sclkPin,
ahmedhedait 0:1b04b9bacf5a 211 PinName const ledPin);
ahmedhedait 0:1b04b9bacf5a 212
ahmedhedait 0:1b04b9bacf5a 213 /** Create a N5110 object connected to the specified pins (Vcc to +3V3)
ahmedhedait 0:1b04b9bacf5a 214 *
ahmedhedait 0:1b04b9bacf5a 215 * @param sce Pin connected to chip enable (pin 3)
ahmedhedait 0:1b04b9bacf5a 216 * @param rst Pin connected to reset (pin 4)
ahmedhedait 0:1b04b9bacf5a 217 * @param dc Pin connected to data/command select (pin 5)
ahmedhedait 0:1b04b9bacf5a 218 * @param mosi Pin connected to data input (MOSI) (pin 6)
ahmedhedait 0:1b04b9bacf5a 219 * @param sclk Pin connected to serial clock (SCLK) (pin 7)
ahmedhedait 0:1b04b9bacf5a 220 * @param led Pin connected to LED backlight (must be PWM) (pin 8)
ahmedhedait 0:1b04b9bacf5a 221 *
ahmedhedait 0:1b04b9bacf5a 222 */
ahmedhedait 0:1b04b9bacf5a 223 N5110(PinName const scePin,
ahmedhedait 0:1b04b9bacf5a 224 PinName const rstPin,
ahmedhedait 0:1b04b9bacf5a 225 PinName const dcPin,
ahmedhedait 0:1b04b9bacf5a 226 PinName const mosiPin,
ahmedhedait 0:1b04b9bacf5a 227 PinName const sclkPin,
ahmedhedait 0:1b04b9bacf5a 228 PinName const ledPin);
ahmedhedait 0:1b04b9bacf5a 229
ahmedhedait 0:1b04b9bacf5a 230 /**
ahmedhedait 0:1b04b9bacf5a 231 * Free allocated memory when object goes out of scope
ahmedhedait 0:1b04b9bacf5a 232 */
ahmedhedait 0:1b04b9bacf5a 233 ~N5110();
ahmedhedait 0:1b04b9bacf5a 234
ahmedhedait 0:1b04b9bacf5a 235 /** Initialise display
ahmedhedait 0:1b04b9bacf5a 236 *
ahmedhedait 0:1b04b9bacf5a 237 * Powers up the display and turns on backlight (50% brightness default).
ahmedhedait 0:1b04b9bacf5a 238 * Sets the display up in horizontal addressing mode and with normal video mode.
ahmedhedait 0:1b04b9bacf5a 239 */
ahmedhedait 0:1b04b9bacf5a 240 void init();
ahmedhedait 0:1b04b9bacf5a 241
ahmedhedait 0:1b04b9bacf5a 242 /** Turn off
ahmedhedait 0:1b04b9bacf5a 243 *
ahmedhedait 0:1b04b9bacf5a 244 * Powers down the display and turns of the backlight.
ahmedhedait 0:1b04b9bacf5a 245 * Needs to be reinitialised before being re-used.
ahmedhedait 0:1b04b9bacf5a 246 */
ahmedhedait 0:1b04b9bacf5a 247 void turnOff();
ahmedhedait 0:1b04b9bacf5a 248
ahmedhedait 0:1b04b9bacf5a 249 /** Clear
ahmedhedait 0:1b04b9bacf5a 250 *
ahmedhedait 0:1b04b9bacf5a 251 * Clears the screen buffer.
ahmedhedait 0:1b04b9bacf5a 252 */
ahmedhedait 0:1b04b9bacf5a 253 void clear();
ahmedhedait 0:1b04b9bacf5a 254
ahmedhedait 0:1b04b9bacf5a 255 /** Set screen constrast
ahmedhedait 0:1b04b9bacf5a 256 * @param constrast - float in range 0.0 to 1.0 (0.40 to 0.60 is usually a good value)
ahmedhedait 0:1b04b9bacf5a 257 */
ahmedhedait 0:1b04b9bacf5a 258 void setContrast(float contrast);
ahmedhedait 0:1b04b9bacf5a 259
ahmedhedait 0:1b04b9bacf5a 260 /** Turn on normal video mode (default)
ahmedhedait 0:1b04b9bacf5a 261 * Black on white
ahmedhedait 0:1b04b9bacf5a 262 */
ahmedhedait 0:1b04b9bacf5a 263 void normalMode();
ahmedhedait 0:1b04b9bacf5a 264
ahmedhedait 0:1b04b9bacf5a 265 /** Turn on inverse video mode (default)
ahmedhedait 0:1b04b9bacf5a 266 * White on black
ahmedhedait 0:1b04b9bacf5a 267 */
ahmedhedait 0:1b04b9bacf5a 268 void inverseMode();
ahmedhedait 0:1b04b9bacf5a 269
ahmedhedait 0:1b04b9bacf5a 270 /** Set Brightness
ahmedhedait 0:1b04b9bacf5a 271 *
ahmedhedait 0:1b04b9bacf5a 272 * Sets brightness of LED backlight.
ahmedhedait 0:1b04b9bacf5a 273 * @param brightness - float in range 0.0 to 1.0
ahmedhedait 0:1b04b9bacf5a 274 */
ahmedhedait 0:1b04b9bacf5a 275 void setBrightness(float const brightness);
ahmedhedait 0:1b04b9bacf5a 276
ahmedhedait 0:1b04b9bacf5a 277 /** Print String
ahmedhedait 0:1b04b9bacf5a 278 *
ahmedhedait 0:1b04b9bacf5a 279 * Prints a string of characters to the screen buffer. String is cut-off after the 83rd pixel.
ahmedhedait 0:1b04b9bacf5a 280 * @param x - the column number (0 to 83)
ahmedhedait 0:1b04b9bacf5a 281 * @param y - the row number (0 to 5) - the display is split into 6 banks - each bank can be considered a row
ahmedhedait 0:1b04b9bacf5a 282 */
ahmedhedait 0:1b04b9bacf5a 283 void printString(char const *str,
ahmedhedait 0:1b04b9bacf5a 284 unsigned int const x,
ahmedhedait 0:1b04b9bacf5a 285 unsigned int const y);
ahmedhedait 0:1b04b9bacf5a 286
ahmedhedait 0:1b04b9bacf5a 287 /** Print Character
ahmedhedait 0:1b04b9bacf5a 288 *
ahmedhedait 0:1b04b9bacf5a 289 * Sends a character to the screen buffer. Printed at the specified location. Character is cut-off after the 83rd pixel.
ahmedhedait 0:1b04b9bacf5a 290 * @param c - the character to print. Can print ASCII as so printChar('C').
ahmedhedait 0:1b04b9bacf5a 291 * @param x - the column number (0 to 83)
ahmedhedait 0:1b04b9bacf5a 292 * @param y - the row number (0 to 5) - the display is split into 6 banks - each bank can be considered a row
ahmedhedait 0:1b04b9bacf5a 293 */
ahmedhedait 0:1b04b9bacf5a 294 void printChar(char const c,
ahmedhedait 0:1b04b9bacf5a 295 unsigned int const x,
ahmedhedait 0:1b04b9bacf5a 296 unsigned int const y);
ahmedhedait 0:1b04b9bacf5a 297
ahmedhedait 0:1b04b9bacf5a 298 /**
ahmedhedait 0:1b04b9bacf5a 299 * @brief Set a Pixel
ahmedhedait 0:1b04b9bacf5a 300 *
ahmedhedait 0:1b04b9bacf5a 301 * @param x The x co-ordinate of the pixel (0 to 83)
ahmedhedait 0:1b04b9bacf5a 302 * @param y The y co-ordinate of the pixel (0 to 47)
ahmedhedait 0:1b04b9bacf5a 303 * @param state The state of the pixel [true=black (default), false=white]
ahmedhedait 0:1b04b9bacf5a 304 *
ahmedhedait 0:1b04b9bacf5a 305 * @details This function sets the state of a pixel in the screen buffer.
ahmedhedait 0:1b04b9bacf5a 306 * The third parameter can be omitted,
ahmedhedait 0:1b04b9bacf5a 307 */
ahmedhedait 0:1b04b9bacf5a 308 void setPixel(unsigned int const x,
ahmedhedait 0:1b04b9bacf5a 309 unsigned int const y,
ahmedhedait 0:1b04b9bacf5a 310 bool const state = true);
ahmedhedait 0:1b04b9bacf5a 311
ahmedhedait 0:1b04b9bacf5a 312 /**
ahmedhedait 0:1b04b9bacf5a 313 * @brief Clear a Pixel
ahmedhedait 0:1b04b9bacf5a 314 *
ahmedhedait 0:1b04b9bacf5a 315 * @param x - the x co-ordinate of the pixel (0 to 83)
ahmedhedait 0:1b04b9bacf5a 316 * @param y - the y co-ordinate of the pixel (0 to 47)
ahmedhedait 0:1b04b9bacf5a 317 *
ahmedhedait 0:1b04b9bacf5a 318 * @details This function clears pixel in the screen buffer
ahmedhedait 0:1b04b9bacf5a 319 *
ahmedhedait 0:1b04b9bacf5a 320 * @deprecated Use setPixel(x, y, false) instead
ahmedhedait 0:1b04b9bacf5a 321 */
ahmedhedait 0:1b04b9bacf5a 322 void clearPixel(unsigned int const x,
ahmedhedait 0:1b04b9bacf5a 323 unsigned int const y)
ahmedhedait 0:1b04b9bacf5a 324 __attribute__((deprecated("Use setPixel(x,y,false) instead")));
ahmedhedait 0:1b04b9bacf5a 325
ahmedhedait 0:1b04b9bacf5a 326 /** Get a Pixel
ahmedhedait 0:1b04b9bacf5a 327 *
ahmedhedait 0:1b04b9bacf5a 328 * This function gets the status of a pixel in the screen buffer.
ahmedhedait 0:1b04b9bacf5a 329 * @param x - the x co-ordinate of the pixel (0 to 83)
ahmedhedait 0:1b04b9bacf5a 330 * @param y - the y co-ordinate of the pixel (0 to 47)
ahmedhedait 0:1b04b9bacf5a 331 * @returns
ahmedhedait 0:1b04b9bacf5a 332 * 0 - pixel is clear
ahmedhedait 0:1b04b9bacf5a 333 * 1 - pixel is set
ahmedhedait 0:1b04b9bacf5a 334 */
ahmedhedait 0:1b04b9bacf5a 335 int getPixel(unsigned int const x,
ahmedhedait 0:1b04b9bacf5a 336 unsigned int const y) const;
ahmedhedait 0:1b04b9bacf5a 337
ahmedhedait 0:1b04b9bacf5a 338 /** Refresh display
ahmedhedait 0:1b04b9bacf5a 339 *
ahmedhedait 0:1b04b9bacf5a 340 * This functions sends the screen buffer to the display.
ahmedhedait 0:1b04b9bacf5a 341 */
ahmedhedait 0:1b04b9bacf5a 342 void refresh();
ahmedhedait 0:1b04b9bacf5a 343
ahmedhedait 0:1b04b9bacf5a 344 /** Randomise buffer
ahmedhedait 0:1b04b9bacf5a 345 *
ahmedhedait 0:1b04b9bacf5a 346 * This function fills the buffer with random data. Can be used to test the display.
ahmedhedait 0:1b04b9bacf5a 347 * A call to refresh() must be made to update the display to reflect the change in pixels.
ahmedhedait 0:1b04b9bacf5a 348 * The seed is not set and so the generated pattern will probably be the same each time.
ahmedhedait 0:1b04b9bacf5a 349 * TODO: Randomise the seed - maybe using the noise on the AnalogIn pins.
ahmedhedait 0:1b04b9bacf5a 350 */
ahmedhedait 0:1b04b9bacf5a 351 void randomiseBuffer();
ahmedhedait 0:1b04b9bacf5a 352
ahmedhedait 0:1b04b9bacf5a 353 /** Plot Array
ahmedhedait 0:1b04b9bacf5a 354 *
ahmedhedait 0:1b04b9bacf5a 355 * This function plots a one-dimensional array in the buffer.
ahmedhedait 0:1b04b9bacf5a 356 * @param array[] - y values of the plot. Values should be normalised in the range 0.0 to 1.0. First 84 plotted.
ahmedhedait 0:1b04b9bacf5a 357 */
ahmedhedait 0:1b04b9bacf5a 358 void plotArray(float const array[]);
ahmedhedait 0:1b04b9bacf5a 359
ahmedhedait 0:1b04b9bacf5a 360 /** Draw Circle
ahmedhedait 0:1b04b9bacf5a 361 *
ahmedhedait 0:1b04b9bacf5a 362 * This function draws a circle at the specified origin with specified radius in the screen buffer
ahmedhedait 0:1b04b9bacf5a 363 * Uses the midpoint circle algorithm.
ahmedhedait 0:1b04b9bacf5a 364 * @see http://en.wikipedia.org/wiki/Midpoint_circle_algorithm
ahmedhedait 0:1b04b9bacf5a 365 * @param x0 - x-coordinate of centre
ahmedhedait 0:1b04b9bacf5a 366 * @param y0 - y-coordinate of centre
ahmedhedait 0:1b04b9bacf5a 367 * @param radius - radius of circle in pixels
ahmedhedait 0:1b04b9bacf5a 368 * @param fill - fill-type for the shape
ahmedhedait 0:1b04b9bacf5a 369 */
ahmedhedait 0:1b04b9bacf5a 370 void drawCircle(unsigned int const x0,
ahmedhedait 0:1b04b9bacf5a 371 unsigned int const y0,
ahmedhedait 0:1b04b9bacf5a 372 unsigned int const radius,
ahmedhedait 0:1b04b9bacf5a 373 FillType const fill);
ahmedhedait 0:1b04b9bacf5a 374
ahmedhedait 0:1b04b9bacf5a 375 /** Draw Line
ahmedhedait 0:1b04b9bacf5a 376 *
ahmedhedait 0:1b04b9bacf5a 377 * This function draws a line between the specified points using linear interpolation.
ahmedhedait 0:1b04b9bacf5a 378 * @param x0 - x-coordinate of first point
ahmedhedait 0:1b04b9bacf5a 379 * @param y0 - y-coordinate of first point
ahmedhedait 0:1b04b9bacf5a 380 * @param x1 - x-coordinate of last point
ahmedhedait 0:1b04b9bacf5a 381 * @param y1 - y-coordinate of last point
ahmedhedait 0:1b04b9bacf5a 382 * @param type - 0 white,1 black,2 dotted
ahmedhedait 0:1b04b9bacf5a 383 */
ahmedhedait 0:1b04b9bacf5a 384 void drawLine(unsigned int const x0,
ahmedhedait 0:1b04b9bacf5a 385 unsigned int const y0,
ahmedhedait 0:1b04b9bacf5a 386 unsigned int const x1,
ahmedhedait 0:1b04b9bacf5a 387 unsigned int const y1,
ahmedhedait 0:1b04b9bacf5a 388 unsigned int const type);
ahmedhedait 0:1b04b9bacf5a 389
ahmedhedait 0:1b04b9bacf5a 390 /** Draw Rectangle
ahmedhedait 0:1b04b9bacf5a 391 *
ahmedhedait 0:1b04b9bacf5a 392 * This function draws a rectangle.
ahmedhedait 0:1b04b9bacf5a 393 * @param x0 - x-coordinate of origin (top-left)
ahmedhedait 0:1b04b9bacf5a 394 * @param y0 - y-coordinate of origin (top-left)
ahmedhedait 0:1b04b9bacf5a 395 * @param width - width of rectangle
ahmedhedait 0:1b04b9bacf5a 396 * @param height - height of rectangle
ahmedhedait 0:1b04b9bacf5a 397 * @param fill - fill-type for the shape
ahmedhedait 0:1b04b9bacf5a 398 */
ahmedhedait 0:1b04b9bacf5a 399 void drawRect(unsigned int const x0,
ahmedhedait 0:1b04b9bacf5a 400 unsigned int const y0,
ahmedhedait 0:1b04b9bacf5a 401 unsigned int const width,
ahmedhedait 0:1b04b9bacf5a 402 unsigned int const height,
ahmedhedait 0:1b04b9bacf5a 403 FillType const fill);
ahmedhedait 0:1b04b9bacf5a 404
ahmedhedait 0:1b04b9bacf5a 405 /** Draw Sprite
ahmedhedait 0:1b04b9bacf5a 406 *
ahmedhedait 0:1b04b9bacf5a 407 * This function draws a sprite as defined in a 2D array
ahmedhedait 0:1b04b9bacf5a 408 * @param x0 - x-coordinate of origin (top-left)
ahmedhedait 0:1b04b9bacf5a 409 * @param y0 - y-coordinate of origin (top-left)
ahmedhedait 0:1b04b9bacf5a 410 * @param nrows - number of rows in sprite
ahmedhedait 0:1b04b9bacf5a 411 * @param ncols - number of columns in sprite
ahmedhedait 0:1b04b9bacf5a 412 * @param sprite - 2D array representing the sprite
ahmedhedait 0:1b04b9bacf5a 413 */
ahmedhedait 0:1b04b9bacf5a 414 void drawSprite(int x0,
ahmedhedait 0:1b04b9bacf5a 415 int y0,
ahmedhedait 0:1b04b9bacf5a 416 int nrows,
ahmedhedait 0:1b04b9bacf5a 417 int ncols,
ahmedhedait 0:1b04b9bacf5a 418 int *sprite);
ahmedhedait 0:1b04b9bacf5a 419
ahmedhedait 0:1b04b9bacf5a 420
ahmedhedait 0:1b04b9bacf5a 421 private:
ahmedhedait 0:1b04b9bacf5a 422 // methods
ahmedhedait 0:1b04b9bacf5a 423 void setXYAddress(unsigned int const x,
ahmedhedait 0:1b04b9bacf5a 424 unsigned int const y);
ahmedhedait 0:1b04b9bacf5a 425 void initSPI();
ahmedhedait 0:1b04b9bacf5a 426 void turnOn();
ahmedhedait 0:1b04b9bacf5a 427 void reset();
ahmedhedait 0:1b04b9bacf5a 428 void clearRAM();
ahmedhedait 0:1b04b9bacf5a 429 void sendCommand(unsigned char command);
ahmedhedait 0:1b04b9bacf5a 430 void sendData(unsigned char data);
ahmedhedait 0:1b04b9bacf5a 431 void setTempCoefficient(char tc); // 0 to 3
ahmedhedait 0:1b04b9bacf5a 432 void setBias(char bias); // 0 to 7
ahmedhedait 0:1b04b9bacf5a 433 };
ahmedhedait 0:1b04b9bacf5a 434
ahmedhedait 0:1b04b9bacf5a 435 const unsigned char font5x7[480] = {
ahmedhedait 0:1b04b9bacf5a 436 0x00, 0x00, 0x00, 0x00, 0x00,// (space)
ahmedhedait 0:1b04b9bacf5a 437 0x00, 0x00, 0x5F, 0x00, 0x00,// !
ahmedhedait 0:1b04b9bacf5a 438 0x00, 0x07, 0x00, 0x07, 0x00,// "
ahmedhedait 0:1b04b9bacf5a 439 0x14, 0x7F, 0x14, 0x7F, 0x14,// #
ahmedhedait 0:1b04b9bacf5a 440 0x24, 0x2A, 0x7F, 0x2A, 0x12,// $
ahmedhedait 0:1b04b9bacf5a 441 0x23, 0x13, 0x08, 0x64, 0x62,// %
ahmedhedait 0:1b04b9bacf5a 442 0x36, 0x49, 0x55, 0x22, 0x50,// &
ahmedhedait 0:1b04b9bacf5a 443 0x00, 0x05, 0x03, 0x00, 0x00,// '
ahmedhedait 0:1b04b9bacf5a 444 0x00, 0x1C, 0x22, 0x41, 0x00,// (
ahmedhedait 0:1b04b9bacf5a 445 0x00, 0x41, 0x22, 0x1C, 0x00,// )
ahmedhedait 0:1b04b9bacf5a 446 0x08, 0x2A, 0x1C, 0x2A, 0x08,// *
ahmedhedait 0:1b04b9bacf5a 447 0x08, 0x08, 0x3E, 0x08, 0x08,// +
ahmedhedait 0:1b04b9bacf5a 448 0x00, 0x50, 0x30, 0x00, 0x00,// ,
ahmedhedait 0:1b04b9bacf5a 449 0x08, 0x08, 0x08, 0x08, 0x08,// -
ahmedhedait 0:1b04b9bacf5a 450 0x00, 0x60, 0x60, 0x00, 0x00,// .
ahmedhedait 0:1b04b9bacf5a 451 0x20, 0x10, 0x08, 0x04, 0x02,// /
ahmedhedait 0:1b04b9bacf5a 452 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
ahmedhedait 0:1b04b9bacf5a 453 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
ahmedhedait 0:1b04b9bacf5a 454 0x42, 0x61, 0x51, 0x49, 0x46,// 2
ahmedhedait 0:1b04b9bacf5a 455 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
ahmedhedait 0:1b04b9bacf5a 456 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
ahmedhedait 0:1b04b9bacf5a 457 0x27, 0x45, 0x45, 0x45, 0x39,// 5
ahmedhedait 0:1b04b9bacf5a 458 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
ahmedhedait 0:1b04b9bacf5a 459 0x01, 0x71, 0x09, 0x05, 0x03,// 7
ahmedhedait 0:1b04b9bacf5a 460 0x36, 0x49, 0x49, 0x49, 0x36,// 8
ahmedhedait 0:1b04b9bacf5a 461 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
ahmedhedait 0:1b04b9bacf5a 462 0x00, 0x36, 0x36, 0x00, 0x00,// :
ahmedhedait 0:1b04b9bacf5a 463 0x00, 0x56, 0x36, 0x00, 0x00,// ;
ahmedhedait 0:1b04b9bacf5a 464 0x00, 0x08, 0x14, 0x22, 0x41,// <
ahmedhedait 0:1b04b9bacf5a 465 0x14, 0x14, 0x14, 0x14, 0x14,// =
ahmedhedait 0:1b04b9bacf5a 466 0x41, 0x22, 0x14, 0x08, 0x00,// >
ahmedhedait 0:1b04b9bacf5a 467 0x02, 0x01, 0x51, 0x09, 0x06,// ?
ahmedhedait 0:1b04b9bacf5a 468 0x32, 0x49, 0x79, 0x41, 0x3E,// @
ahmedhedait 0:1b04b9bacf5a 469 0x7E, 0x11, 0x11, 0x11, 0x7E,// A
ahmedhedait 0:1b04b9bacf5a 470 0x7F, 0x49, 0x49, 0x49, 0x36,// B
ahmedhedait 0:1b04b9bacf5a 471 0x3E, 0x41, 0x41, 0x41, 0x22,// C
ahmedhedait 0:1b04b9bacf5a 472 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
ahmedhedait 0:1b04b9bacf5a 473 0x7F, 0x49, 0x49, 0x49, 0x41,// E
ahmedhedait 0:1b04b9bacf5a 474 0x7F, 0x09, 0x09, 0x01, 0x01,// F
ahmedhedait 0:1b04b9bacf5a 475 0x3E, 0x41, 0x41, 0x51, 0x32,// G
ahmedhedait 0:1b04b9bacf5a 476 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
ahmedhedait 0:1b04b9bacf5a 477 0x00, 0x41, 0x7F, 0x41, 0x00,// I
ahmedhedait 0:1b04b9bacf5a 478 0x20, 0x40, 0x41, 0x3F, 0x01,// J
ahmedhedait 0:1b04b9bacf5a 479 0x7F, 0x08, 0x14, 0x22, 0x41,// K
ahmedhedait 0:1b04b9bacf5a 480 0x7F, 0x40, 0x40, 0x40, 0x40,// L
ahmedhedait 0:1b04b9bacf5a 481 0x7F, 0x02, 0x04, 0x02, 0x7F,// M
ahmedhedait 0:1b04b9bacf5a 482 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
ahmedhedait 0:1b04b9bacf5a 483 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
ahmedhedait 0:1b04b9bacf5a 484 0x7F, 0x09, 0x09, 0x09, 0x06,// P
ahmedhedait 0:1b04b9bacf5a 485 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
ahmedhedait 0:1b04b9bacf5a 486 0x7F, 0x09, 0x19, 0x29, 0x46,// R
ahmedhedait 0:1b04b9bacf5a 487 0x46, 0x49, 0x49, 0x49, 0x31,// S
ahmedhedait 0:1b04b9bacf5a 488 0x01, 0x01, 0x7F, 0x01, 0x01,// T
ahmedhedait 0:1b04b9bacf5a 489 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
ahmedhedait 0:1b04b9bacf5a 490 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
ahmedhedait 0:1b04b9bacf5a 491 0x7F, 0x20, 0x18, 0x20, 0x7F,// W
ahmedhedait 0:1b04b9bacf5a 492 0x63, 0x14, 0x08, 0x14, 0x63,// X
ahmedhedait 0:1b04b9bacf5a 493 0x03, 0x04, 0x78, 0x04, 0x03,// Y
ahmedhedait 0:1b04b9bacf5a 494 0x61, 0x51, 0x49, 0x45, 0x43,// Z
ahmedhedait 0:1b04b9bacf5a 495 0x00, 0x00, 0x7F, 0x41, 0x41,// [
ahmedhedait 0:1b04b9bacf5a 496 0x02, 0x04, 0x08, 0x10, 0x20,// "\"
ahmedhedait 0:1b04b9bacf5a 497 0x41, 0x41, 0x7F, 0x00, 0x00,// ]
ahmedhedait 0:1b04b9bacf5a 498 0x04, 0x02, 0x01, 0x02, 0x04,// ^
ahmedhedait 0:1b04b9bacf5a 499 0x40, 0x40, 0x40, 0x40, 0x40,// _
ahmedhedait 0:1b04b9bacf5a 500 0x00, 0x01, 0x02, 0x04, 0x00,// `
ahmedhedait 0:1b04b9bacf5a 501 0x20, 0x54, 0x54, 0x54, 0x78,// a
ahmedhedait 0:1b04b9bacf5a 502 0x7F, 0x48, 0x44, 0x44, 0x38,// b
ahmedhedait 0:1b04b9bacf5a 503 0x38, 0x44, 0x44, 0x44, 0x20,// c
ahmedhedait 0:1b04b9bacf5a 504 0x38, 0x44, 0x44, 0x48, 0x7F,// d
ahmedhedait 0:1b04b9bacf5a 505 0x38, 0x54, 0x54, 0x54, 0x18,// e
ahmedhedait 0:1b04b9bacf5a 506 0x08, 0x7E, 0x09, 0x01, 0x02,// f
ahmedhedait 0:1b04b9bacf5a 507 0x08, 0x14, 0x54, 0x54, 0x3C,// g
ahmedhedait 0:1b04b9bacf5a 508 0x7F, 0x08, 0x04, 0x04, 0x78,// h
ahmedhedait 0:1b04b9bacf5a 509 0x00, 0x44, 0x7D, 0x40, 0x00,// i
ahmedhedait 0:1b04b9bacf5a 510 0x20, 0x40, 0x44, 0x3D, 0x00,// j
ahmedhedait 0:1b04b9bacf5a 511 0x00, 0x7F, 0x10, 0x28, 0x44,// k
ahmedhedait 0:1b04b9bacf5a 512 0x00, 0x41, 0x7F, 0x40, 0x00,// l
ahmedhedait 0:1b04b9bacf5a 513 0x7C, 0x04, 0x18, 0x04, 0x78,// m
ahmedhedait 0:1b04b9bacf5a 514 0x7C, 0x08, 0x04, 0x04, 0x78,// n
ahmedhedait 0:1b04b9bacf5a 515 0x38, 0x44, 0x44, 0x44, 0x38,// o
ahmedhedait 0:1b04b9bacf5a 516 0x7C, 0x14, 0x14, 0x14, 0x08,// p
ahmedhedait 0:1b04b9bacf5a 517 0x08, 0x14, 0x14, 0x18, 0x7C,// q
ahmedhedait 0:1b04b9bacf5a 518 0x7C, 0x08, 0x04, 0x04, 0x08,// r
ahmedhedait 0:1b04b9bacf5a 519 0x48, 0x54, 0x54, 0x54, 0x20,// s
ahmedhedait 0:1b04b9bacf5a 520 0x04, 0x3F, 0x44, 0x40, 0x20,// t
ahmedhedait 0:1b04b9bacf5a 521 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
ahmedhedait 0:1b04b9bacf5a 522 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
ahmedhedait 0:1b04b9bacf5a 523 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
ahmedhedait 0:1b04b9bacf5a 524 0x44, 0x28, 0x10, 0x28, 0x44,// x
ahmedhedait 0:1b04b9bacf5a 525 0x0C, 0x50, 0x50, 0x50, 0x3C,// y
ahmedhedait 0:1b04b9bacf5a 526 0x44, 0x64, 0x54, 0x4C, 0x44,// z
ahmedhedait 0:1b04b9bacf5a 527 0x00, 0x08, 0x36, 0x41, 0x00,// {
ahmedhedait 0:1b04b9bacf5a 528 0x00, 0x00, 0x7F, 0x00, 0x00,// |
ahmedhedait 0:1b04b9bacf5a 529 0x00, 0x41, 0x36, 0x08, 0x00,// }
ahmedhedait 0:1b04b9bacf5a 530 0x08, 0x08, 0x2A, 0x1C, 0x08,// ->
ahmedhedait 0:1b04b9bacf5a 531 0x08, 0x1C, 0x2A, 0x08, 0x08 // <-
ahmedhedait 0:1b04b9bacf5a 532 };
ahmedhedait 0:1b04b9bacf5a 533
ahmedhedait 0:1b04b9bacf5a 534 #endif