ELEC2645 (2018/19) / Mbed 2 deprecated el17kz

runner

Dependencies:   mbed

N5110/N5110.h@9:61c4ec74a71f, 2019-05-09 (annotated)

Committer:
kamtas
Date:
Thu May 09 15:45:22 2019 +0000
Revision:
9:61c4ec74a71f
Parent:
2:1900a4144537 
Final Submission. I have read and agreed with Statement of Academic Integrity.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kamtas 0:1e61ade20a23 1 #ifndef N5110_H
kamtas 0:1e61ade20a23 2 #define N5110_H
kamtas 0:1e61ade20a23 3
kamtas 0:1e61ade20a23 4 #include "mbed.h"
kamtas 0:1e61ade20a23 5
kamtas 2:1900a4144537 6 // Command Bytes - taken from Chris Yan's library
kamtas 2:1900a4144537 7 // More information can be found in the display datasheet
kamtas 2:1900a4144537 8 // H = 0 - Basic instructions
kamtas 2:1900a4144537 9 #define CMD_DC_CLEAR_DISPLAY 0x08
kamtas 2:1900a4144537 10 #define CMD_DC_NORMAL_MODE 0x0C
kamtas 2:1900a4144537 11 #define CMD_DC_FILL_DISPLAY 0x09
kamtas 2:1900a4144537 12 #define CMD_DC_INVERT_VIDEO 0x0D
kamtas 2:1900a4144537 13 #define CMD_FS_HORIZONTAL_MODE 0x00
kamtas 2:1900a4144537 14 #define CMD_FS_VERTICAL_MODE 0x02
kamtas 2:1900a4144537 15 #define CMD_FS_BASIC_MODE 0x00
kamtas 2:1900a4144537 16 #define CMD_FS_EXTENDED_MODE 0x01
kamtas 2:1900a4144537 17 #define CMD_FS_ACTIVE_MODE 0x00
kamtas 2:1900a4144537 18 #define CMD_FS_POWER_DOWN_MODE 0x04
kamtas 2:1900a4144537 19 // H = 1 - Extended instructions
kamtas 2:1900a4144537 20 #define CMD_TC_TEMP_0 0x04
kamtas 2:1900a4144537 21 #define CMD_TC_TEMP_1 0x05
kamtas 2:1900a4144537 22 #define CMD_TC_TEMP_2 0x06
kamtas 2:1900a4144537 23 #define CMD_TC_TEMP_3 0x07
kamtas 2:1900a4144537 24 #define CMD_BI_MUX_24 0x15
kamtas 2:1900a4144537 25 #define CMD_BI_MUX_48 0x13
kamtas 2:1900a4144537 26 #define CMD_BI_MUX_100 0x10
kamtas 2:1900a4144537 27 #define CMD_VOP_6V06 0xB2
kamtas 2:1900a4144537 28 #define CMD_VOP_7V38 0xC8
kamtas 2:1900a4144537 29
kamtas 0:1e61ade20a23 30 // number of pixels on display
kamtas 0:1e61ade20a23 31 #define WIDTH 84
kamtas 0:1e61ade20a23 32 #define HEIGHT 48
kamtas 0:1e61ade20a23 33 #define BANKS 6
kamtas 0:1e61ade20a23 34
kamtas 0:1e61ade20a23 35 /// Fill types for 2D shapes
kamtas 0:1e61ade20a23 36 enum FillType {
kamtas 0:1e61ade20a23 37 FILL_TRANSPARENT, ///< Transparent with outline
kamtas 0:1e61ade20a23 38 FILL_BLACK, ///< Filled black
kamtas 0:1e61ade20a23 39 FILL_WHITE, ///< Filled white (no outline)
kamtas 0:1e61ade20a23 40 };
kamtas 0:1e61ade20a23 41
kamtas 0:1e61ade20a23 42 /** N5110 Class
kamtas 0:1e61ade20a23 43 @brief Library for interfacing with Nokia 5110 LCD display (https://www.sparkfun.com/products/10168) using the hardware SPI on the mbed.
kamtas 0:1e61ade20a23 44 @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).
kamtas 0:1e61ade20a23 45 @brief Can print characters and strings to the display using the included 5x7 font.
kamtas 0:1e61ade20a23 46 @brief The library also implements a screen buffer so that individual pixels on the display (84 x 48) can be set, cleared and read.
kamtas 0:1e61ade20a23 47 @brief The library can print primitive shapes (lines, circles, rectangles)
kamtas 0:1e61ade20a23 48 @brief Acknowledgements to Chris Yan's Nokia_5110 Library.
kamtas 0:1e61ade20a23 49
kamtas 0:1e61ade20a23 50 @brief Revision 1.3
kamtas 0:1e61ade20a23 51
kamtas 0:1e61ade20a23 52 @author Craig A. Evans
kamtas 0:1e61ade20a23 53 @date 7th February 2017
kamtas 0:1e61ade20a23 54
kamtas 0:1e61ade20a23 55 @code
kamtas 0:1e61ade20a23 56
kamtas 0:1e61ade20a23 57 #include "mbed.h"
kamtas 0:1e61ade20a23 58 #include "N5110.h"
kamtas 0:1e61ade20a23 59
kamtas 0:1e61ade20a23 60 // VCC,SCE,RST,D/C,MOSI,SCLK,LED
kamtas 0:1e61ade20a23 61 //N5110 lcd(p7,p8,p9,p10,p11,p13,p21); // LPC1768 - pwr from GPIO
kamtas 2:1900a4144537 62 N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11); // K64F - pwr from 3V3
kamtas 0:1e61ade20a23 63
kamtas 0:1e61ade20a23 64 int main()
kamtas 0:1e61ade20a23 65 {
kamtas 0:1e61ade20a23 66 // first need to initialise display
kamtas 0:1e61ade20a23 67 lcd.init();
kamtas 0:1e61ade20a23 68
kamtas 0:1e61ade20a23 69 while(1) {
kamtas 0:1e61ade20a23 70
kamtas 0:1e61ade20a23 71 // these are default settings so not strictly needed
kamtas 0:1e61ade20a23 72 lcd.normalMode(); // normal colour mode
kamtas 0:1e61ade20a23 73 lcd.setBrightness(0.5); // put LED backlight on 50%
kamtas 0:1e61ade20a23 74
kamtas 0:1e61ade20a23 75 lcd.clear(); // clear buffer at start of every loop
kamtas 0:1e61ade20a23 76 // can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display)
kamtas 0:1e61ade20a23 77 lcd.printString("Hello, World!",0,0);
kamtas 0:1e61ade20a23 78
kamtas 0:1e61ade20a23 79 char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
kamtas 0:1e61ade20a23 80 // so can display a string of a maximum 14 characters in length
kamtas 0:1e61ade20a23 81 // or create formatted strings - ensure they aren't more than 14 characters long
kamtas 0:1e61ade20a23 82 int temperature = 27;
kamtas 0:1e61ade20a23 83 int length = sprintf(buffer,"T = %2d C",temperature); // print formatted data to buffer
kamtas 0:1e61ade20a23 84 // it is important the format specifier ensures the length will fit in the buffer
kamtas 0:1e61ade20a23 85 if (length <= 14) // if string will fit on display (assuming printing at x=0)
kamtas 0:1e61ade20a23 86 lcd.printString(buffer,0,1); // display on screen
kamtas 0:1e61ade20a23 87
kamtas 0:1e61ade20a23 88 float pressure = 1012.3; // same idea with floats
kamtas 0:1e61ade20a23 89 length = sprintf(buffer,"P = %.2f mb",pressure);
kamtas 0:1e61ade20a23 90 if (length <= 14)
kamtas 0:1e61ade20a23 91 lcd.printString(buffer,0,2);
kamtas 0:1e61ade20a23 92
kamtas 0:1e61ade20a23 93 // can also print individual characters at specified place
kamtas 0:1e61ade20a23 94 lcd.printChar('X',5,3);
kamtas 0:1e61ade20a23 95
kamtas 0:1e61ade20a23 96 // draw a line across the display at y = 40 pixels (origin top-left)
kamtas 0:1e61ade20a23 97 for (int i = 0; i < WIDTH; i++) {
kamtas 2:1900a4144537 98 lcd.setPixel(i,40);
kamtas 0:1e61ade20a23 99 }
kamtas 0:1e61ade20a23 100 // need to refresh display after setting pixels or writing strings
kamtas 0:1e61ade20a23 101 lcd.refresh();
kamtas 0:1e61ade20a23 102 wait(5.0);
kamtas 0:1e61ade20a23 103
kamtas 0:1e61ade20a23 104 // can check status of pixel using getPixel(x,y);
kamtas 0:1e61ade20a23 105 lcd.clear(); // clear buffer
kamtas 2:1900a4144537 106 lcd.setPixel(2,2); // set random pixel in buffer
kamtas 0:1e61ade20a23 107 lcd.refresh();
kamtas 0:1e61ade20a23 108 wait(1.0);
kamtas 0:1e61ade20a23 109
kamtas 0:1e61ade20a23 110 int pixel_to_test = lcd.getPixel(2,2);
kamtas 0:1e61ade20a23 111
kamtas 2:1900a4144537 112 printf("2,2 Pixel value = %i\n",pixel_to_test);
kamtas 2:1900a4144537 113
kamtas 0:1e61ade20a23 114 if ( pixel_to_test ) {
kamtas 0:1e61ade20a23 115 lcd.printString("2,2 is set",0,4);
kamtas 0:1e61ade20a23 116 }
kamtas 0:1e61ade20a23 117
kamtas 0:1e61ade20a23 118 // this one shouldn't be set
kamtas 0:1e61ade20a23 119 pixel_to_test = lcd.getPixel(3,3);
kamtas 0:1e61ade20a23 120
kamtas 2:1900a4144537 121 printf("3,3 Pixel value = %i\n",pixel_to_test);
kamtas 2:1900a4144537 122
kamtas 0:1e61ade20a23 123 if ( pixel_to_test == 0 ) {
kamtas 0:1e61ade20a23 124 lcd.printString("3,3 is clear",0,5);
kamtas 0:1e61ade20a23 125 }
kamtas 0:1e61ade20a23 126
kamtas 0:1e61ade20a23 127 lcd.refresh();
kamtas 0:1e61ade20a23 128 wait(4.0);
kamtas 0:1e61ade20a23 129
kamtas 0:1e61ade20a23 130 lcd.clear(); // clear buffer
kamtas 0:1e61ade20a23 131 lcd.inverseMode(); // invert colours
kamtas 0:1e61ade20a23 132 lcd.setBrightness(1.0); // put LED backlight on full
kamtas 0:1e61ade20a23 133
kamtas 0:1e61ade20a23 134 float array[84];
kamtas 0:1e61ade20a23 135
kamtas 0:1e61ade20a23 136 for (int i = 0; i < 84; i++) {
kamtas 0:1e61ade20a23 137 array[i] = 0.5 + 0.5*sin(i*2*3.14/84);
kamtas 0:1e61ade20a23 138 }
kamtas 0:1e61ade20a23 139
kamtas 0:1e61ade20a23 140 // can also plot graphs - 84 elements only
kamtas 0:1e61ade20a23 141 // values must be in range 0.0 - 1.0
kamtas 0:1e61ade20a23 142 lcd.plotArray(array);
kamtas 0:1e61ade20a23 143 lcd.refresh();
kamtas 0:1e61ade20a23 144 wait(5.0);
kamtas 0:1e61ade20a23 145
kamtas 0:1e61ade20a23 146 lcd.clear();
kamtas 0:1e61ade20a23 147 lcd.normalMode(); // normal colour mode back
kamtas 0:1e61ade20a23 148 lcd.setBrightness(0.5); // put LED backlight on 50%
kamtas 0:1e61ade20a23 149
kamtas 0:1e61ade20a23 150 // example of drawing lines
kamtas 0:1e61ade20a23 151 for (int x = 0; x < WIDTH ; x+=10) {
kamtas 0:1e61ade20a23 152 // x0,y0,x1,y1,type 0-white,1-black,2-dotted
kamtas 0:1e61ade20a23 153 lcd.drawLine(0,0,x,HEIGHT,2);
kamtas 0:1e61ade20a23 154 }
kamtas 0:1e61ade20a23 155 lcd.refresh(); // refresh after drawing shapes
kamtas 0:1e61ade20a23 156 wait(5.0);
kamtas 0:1e61ade20a23 157
kamtas 0:1e61ade20a23 158
kamtas 0:1e61ade20a23 159 lcd.clear();
kamtas 0:1e61ade20a23 160 // example of how to draw circles
kamtas 0:1e61ade20a23 161 lcd.drawCircle(WIDTH/2,HEIGHT/2,20,FILL_BLACK); // x,y,radius,black fill
kamtas 0:1e61ade20a23 162 lcd.drawCircle(WIDTH/2,HEIGHT/2,10,FILL_WHITE); // x,y,radius,white fill
kamtas 0:1e61ade20a23 163 lcd.drawCircle(WIDTH/2,HEIGHT/2,30,FILL_TRANSPARENT); // x,y,radius,transparent with outline
kamtas 0:1e61ade20a23 164 lcd.refresh(); // refresh after drawing shapes
kamtas 0:1e61ade20a23 165 wait(5.0);
kamtas 0:1e61ade20a23 166
kamtas 0:1e61ade20a23 167 lcd.clear();
kamtas 0:1e61ade20a23 168 // example of how to draw rectangles
kamtas 0:1e61ade20a23 169 // origin x,y,width,height,type
kamtas 0:1e61ade20a23 170 lcd.drawRect(10,10,50,30,FILL_BLACK); // filled black rectangle
kamtas 0:1e61ade20a23 171 lcd.drawRect(15,15,20,10,FILL_WHITE); // filled white rectange (no outline)
kamtas 2:1900a4144537 172 lcd.drawRect(2,2,70,40, FILL_TRANSPARENT); // transparent, just outline
kamtas 0:1e61ade20a23 173 lcd.refresh(); // refresh after drawing shapes
kamtas 0:1e61ade20a23 174 wait(5.0);
kamtas 0:1e61ade20a23 175 }
kamtas 0:1e61ade20a23 176 }
kamtas 0:1e61ade20a23 177
kamtas 0:1e61ade20a23 178 @endcode
kamtas 0:1e61ade20a23 179 */
kamtas 0:1e61ade20a23 180 class N5110
kamtas 0:1e61ade20a23 181 {
kamtas 0:1e61ade20a23 182 private:
kamtas 0:1e61ade20a23 183 // objects
kamtas 0:1e61ade20a23 184 SPI *_spi;
kamtas 0:1e61ade20a23 185 PwmOut *_led;
kamtas 0:1e61ade20a23 186 DigitalOut *_pwr;
kamtas 0:1e61ade20a23 187 DigitalOut *_sce;
kamtas 0:1e61ade20a23 188 DigitalOut *_rst;
kamtas 0:1e61ade20a23 189 DigitalOut *_dc;
kamtas 0:1e61ade20a23 190
kamtas 0:1e61ade20a23 191 // variables
kamtas 0:1e61ade20a23 192 unsigned char buffer[84][6]; // screen buffer - the 6 is for the banks - each one is 8 bits;
kamtas 0:1e61ade20a23 193
kamtas 0:1e61ade20a23 194 public:
kamtas 0:1e61ade20a23 195 /** Create a N5110 object connected to the specified pins
kamtas 0:1e61ade20a23 196 *
kamtas 0:1e61ade20a23 197 * @param pwr Pin connected to Vcc on the LCD display (pin 1)
kamtas 0:1e61ade20a23 198 * @param sce Pin connected to chip enable (pin 3)
kamtas 0:1e61ade20a23 199 * @param rst Pin connected to reset (pin 4)
kamtas 0:1e61ade20a23 200 * @param dc Pin connected to data/command select (pin 5)
kamtas 0:1e61ade20a23 201 * @param mosi Pin connected to data input (MOSI) (pin 6)
kamtas 0:1e61ade20a23 202 * @param sclk Pin connected to serial clock (SCLK) (pin 7)
kamtas 0:1e61ade20a23 203 * @param led Pin connected to LED backlight (must be PWM) (pin 8)
kamtas 0:1e61ade20a23 204 *
kamtas 0:1e61ade20a23 205 */
kamtas 0:1e61ade20a23 206 N5110(PinName const pwrPin,
kamtas 0:1e61ade20a23 207 PinName const scePin,
kamtas 0:1e61ade20a23 208 PinName const rstPin,
kamtas 0:1e61ade20a23 209 PinName const dcPin,
kamtas 0:1e61ade20a23 210 PinName const mosiPin,
kamtas 0:1e61ade20a23 211 PinName const sclkPin,
kamtas 0:1e61ade20a23 212 PinName const ledPin);
kamtas 0:1e61ade20a23 213
kamtas 0:1e61ade20a23 214 /** Create a N5110 object connected to the specified pins (Vcc to +3V3)
kamtas 0:1e61ade20a23 215 *
kamtas 0:1e61ade20a23 216 * @param sce Pin connected to chip enable (pin 3)
kamtas 0:1e61ade20a23 217 * @param rst Pin connected to reset (pin 4)
kamtas 0:1e61ade20a23 218 * @param dc Pin connected to data/command select (pin 5)
kamtas 0:1e61ade20a23 219 * @param mosi Pin connected to data input (MOSI) (pin 6)
kamtas 0:1e61ade20a23 220 * @param sclk Pin connected to serial clock (SCLK) (pin 7)
kamtas 0:1e61ade20a23 221 * @param led Pin connected to LED backlight (must be PWM) (pin 8)
kamtas 0:1e61ade20a23 222 *
kamtas 0:1e61ade20a23 223 */
kamtas 0:1e61ade20a23 224 N5110(PinName const scePin,
kamtas 0:1e61ade20a23 225 PinName const rstPin,
kamtas 0:1e61ade20a23 226 PinName const dcPin,
kamtas 0:1e61ade20a23 227 PinName const mosiPin,
kamtas 0:1e61ade20a23 228 PinName const sclkPin,
kamtas 0:1e61ade20a23 229 PinName const ledPin);
kamtas 0:1e61ade20a23 230
kamtas 0:1e61ade20a23 231 /**
kamtas 0:1e61ade20a23 232 * Free allocated memory when object goes out of scope
kamtas 0:1e61ade20a23 233 */
kamtas 0:1e61ade20a23 234 ~N5110();
kamtas 0:1e61ade20a23 235
kamtas 0:1e61ade20a23 236 /** Initialise display
kamtas 0:1e61ade20a23 237 *
kamtas 0:1e61ade20a23 238 * Powers up the display and turns on backlight (50% brightness default).
kamtas 0:1e61ade20a23 239 * Sets the display up in horizontal addressing mode and with normal video mode.
kamtas 0:1e61ade20a23 240 */
kamtas 0:1e61ade20a23 241 void init();
kamtas 0:1e61ade20a23 242
kamtas 0:1e61ade20a23 243 /** Turn off
kamtas 0:1e61ade20a23 244 *
kamtas 0:1e61ade20a23 245 * Powers down the display and turns of the backlight.
kamtas 0:1e61ade20a23 246 * Needs to be reinitialised before being re-used.
kamtas 0:1e61ade20a23 247 */
kamtas 0:1e61ade20a23 248 void turnOff();
kamtas 0:1e61ade20a23 249
kamtas 0:1e61ade20a23 250 /** Clear
kamtas 0:1e61ade20a23 251 *
kamtas 0:1e61ade20a23 252 * Clears the screen buffer.
kamtas 0:1e61ade20a23 253 */
kamtas 0:1e61ade20a23 254 void clear();
kamtas 0:1e61ade20a23 255
kamtas 0:1e61ade20a23 256 /** Turn on normal video mode (default)
kamtas 0:1e61ade20a23 257 * Black on white
kamtas 0:1e61ade20a23 258 */
kamtas 0:1e61ade20a23 259 void normalMode();
kamtas 0:1e61ade20a23 260
kamtas 0:1e61ade20a23 261 /** Turn on inverse video mode (default)
kamtas 0:1e61ade20a23 262 * White on black
kamtas 0:1e61ade20a23 263 */
kamtas 0:1e61ade20a23 264 void inverseMode();
kamtas 0:1e61ade20a23 265
kamtas 0:1e61ade20a23 266 /** Set Brightness
kamtas 0:1e61ade20a23 267 *
kamtas 0:1e61ade20a23 268 * Sets brightness of LED backlight.
kamtas 0:1e61ade20a23 269 * @param brightness - float in range 0.0 to 1.0
kamtas 0:1e61ade20a23 270 */
kamtas 0:1e61ade20a23 271 void setBrightness(float const brightness);
kamtas 0:1e61ade20a23 272
kamtas 0:1e61ade20a23 273 /** Print String
kamtas 0:1e61ade20a23 274 *
kamtas 0:1e61ade20a23 275 * Prints a string of characters to the screen buffer. String is cut-off after the 83rd pixel.
kamtas 0:1e61ade20a23 276 * @param x - the column number (0 to 83)
kamtas 0:1e61ade20a23 277 * @param y - the row number (0 to 5) - the display is split into 6 banks - each bank can be considered a row
kamtas 0:1e61ade20a23 278 */
kamtas 0:1e61ade20a23 279 void printString(char const *str,
kamtas 0:1e61ade20a23 280 unsigned int const x,
kamtas 0:1e61ade20a23 281 unsigned int const y);
kamtas 0:1e61ade20a23 282
kamtas 0:1e61ade20a23 283 /** Print Character
kamtas 0:1e61ade20a23 284 *
kamtas 0:1e61ade20a23 285 * Sends a character to the screen buffer. Printed at the specified location. Character is cut-off after the 83rd pixel.
kamtas 0:1e61ade20a23 286 * @param c - the character to print. Can print ASCII as so printChar('C').
kamtas 0:1e61ade20a23 287 * @param x - the column number (0 to 83)
kamtas 0:1e61ade20a23 288 * @param y - the row number (0 to 5) - the display is split into 6 banks - each bank can be considered a row
kamtas 0:1e61ade20a23 289 */
kamtas 0:1e61ade20a23 290 void printChar(char const c,
kamtas 0:1e61ade20a23 291 unsigned int const x,
kamtas 0:1e61ade20a23 292 unsigned int const y);
kamtas 0:1e61ade20a23 293
kamtas 2:1900a4144537 294 /** Set a Pixel
kamtas 0:1e61ade20a23 295 *
kamtas 2:1900a4144537 296 * This function sets a pixel in the screen buffer.
kamtas 2:1900a4144537 297 * @param x - the x co-ordinate of the pixel (0 to 83)
kamtas 2:1900a4144537 298 * @param y - the y co-ordinate of the pixel (0 to 47)
kamtas 0:1e61ade20a23 299 */
kamtas 0:1e61ade20a23 300 void setPixel(unsigned int const x,
kamtas 2:1900a4144537 301 unsigned int const y);
kamtas 0:1e61ade20a23 302
kamtas 2:1900a4144537 303 /** Clear a Pixel
kamtas 0:1e61ade20a23 304 *
kamtas 2:1900a4144537 305 * This function clears pixel in the screen buffer
kamtas 0:1e61ade20a23 306 * @param x - the x co-ordinate of the pixel (0 to 83)
kamtas 0:1e61ade20a23 307 * @param y - the y co-ordinate of the pixel (0 to 47)
kamtas 0:1e61ade20a23 308 */
kamtas 0:1e61ade20a23 309 void clearPixel(unsigned int const x,
kamtas 2:1900a4144537 310 unsigned int const y);
kamtas 0:1e61ade20a23 311
kamtas 0:1e61ade20a23 312 /** Get a Pixel
kamtas 0:1e61ade20a23 313 *
kamtas 0:1e61ade20a23 314 * This function gets the status of a pixel in the screen buffer.
kamtas 0:1e61ade20a23 315 * @param x - the x co-ordinate of the pixel (0 to 83)
kamtas 0:1e61ade20a23 316 * @param y - the y co-ordinate of the pixel (0 to 47)
kamtas 0:1e61ade20a23 317 * @returns
kamtas 0:1e61ade20a23 318 * 0 - pixel is clear
kamtas 0:1e61ade20a23 319 * 1 - pixel is set
kamtas 0:1e61ade20a23 320 */
kamtas 0:1e61ade20a23 321 int getPixel(unsigned int const x,
kamtas 0:1e61ade20a23 322 unsigned int const y) const;
kamtas 0:1e61ade20a23 323
kamtas 0:1e61ade20a23 324 /** Refresh display
kamtas 0:1e61ade20a23 325 *
kamtas 0:1e61ade20a23 326 * This functions sends the screen buffer to the display.
kamtas 0:1e61ade20a23 327 */
kamtas 0:1e61ade20a23 328 void refresh();
kamtas 0:1e61ade20a23 329
kamtas 0:1e61ade20a23 330 /** Randomise buffer
kamtas 0:1e61ade20a23 331 *
kamtas 0:1e61ade20a23 332 * This function fills the buffer with random data. Can be used to test the display.
kamtas 0:1e61ade20a23 333 * A call to refresh() must be made to update the display to reflect the change in pixels.
kamtas 0:1e61ade20a23 334 * The seed is not set and so the generated pattern will probably be the same each time.
kamtas 0:1e61ade20a23 335 * TODO: Randomise the seed - maybe using the noise on the AnalogIn pins.
kamtas 0:1e61ade20a23 336 */
kamtas 0:1e61ade20a23 337 void randomiseBuffer();
kamtas 0:1e61ade20a23 338
kamtas 0:1e61ade20a23 339 /** Plot Array
kamtas 0:1e61ade20a23 340 *
kamtas 0:1e61ade20a23 341 * This function plots a one-dimensional array in the buffer.
kamtas 0:1e61ade20a23 342 * @param array[] - y values of the plot. Values should be normalised in the range 0.0 to 1.0. First 84 plotted.
kamtas 0:1e61ade20a23 343 */
kamtas 0:1e61ade20a23 344 void plotArray(float const array[]);
kamtas 0:1e61ade20a23 345
kamtas 0:1e61ade20a23 346 /** Draw Circle
kamtas 0:1e61ade20a23 347 *
kamtas 0:1e61ade20a23 348 * This function draws a circle at the specified origin with specified radius in the screen buffer
kamtas 0:1e61ade20a23 349 * Uses the midpoint circle algorithm.
kamtas 0:1e61ade20a23 350 * @see http://en.wikipedia.org/wiki/Midpoint_circle_algorithm
kamtas 0:1e61ade20a23 351 * @param x0 - x-coordinate of centre
kamtas 0:1e61ade20a23 352 * @param y0 - y-coordinate of centre
kamtas 0:1e61ade20a23 353 * @param radius - radius of circle in pixels
kamtas 0:1e61ade20a23 354 * @param fill - fill-type for the shape
kamtas 0:1e61ade20a23 355 */
kamtas 0:1e61ade20a23 356 void drawCircle(unsigned int const x0,
kamtas 0:1e61ade20a23 357 unsigned int const y0,
kamtas 0:1e61ade20a23 358 unsigned int const radius,
kamtas 0:1e61ade20a23 359 FillType const fill);
kamtas 0:1e61ade20a23 360
kamtas 0:1e61ade20a23 361 /** Draw Line
kamtas 0:1e61ade20a23 362 *
kamtas 0:1e61ade20a23 363 * This function draws a line between the specified points using linear interpolation.
kamtas 0:1e61ade20a23 364 * @param x0 - x-coordinate of first point
kamtas 0:1e61ade20a23 365 * @param y0 - y-coordinate of first point
kamtas 0:1e61ade20a23 366 * @param x1 - x-coordinate of last point
kamtas 0:1e61ade20a23 367 * @param y1 - y-coordinate of last point
kamtas 0:1e61ade20a23 368 * @param type - 0 white,1 black,2 dotted
kamtas 0:1e61ade20a23 369 */
kamtas 0:1e61ade20a23 370 void drawLine(unsigned int const x0,
kamtas 0:1e61ade20a23 371 unsigned int const y0,
kamtas 0:1e61ade20a23 372 unsigned int const x1,
kamtas 0:1e61ade20a23 373 unsigned int const y1,
kamtas 0:1e61ade20a23 374 unsigned int const type);
kamtas 0:1e61ade20a23 375
kamtas 0:1e61ade20a23 376 /** Draw Rectangle
kamtas 0:1e61ade20a23 377 *
kamtas 0:1e61ade20a23 378 * This function draws a rectangle.
kamtas 0:1e61ade20a23 379 * @param x0 - x-coordinate of origin (top-left)
kamtas 0:1e61ade20a23 380 * @param y0 - y-coordinate of origin (top-left)
kamtas 0:1e61ade20a23 381 * @param width - width of rectangle
kamtas 0:1e61ade20a23 382 * @param height - height of rectangle
kamtas 0:1e61ade20a23 383 * @param fill - fill-type for the shape
kamtas 0:1e61ade20a23 384 */
kamtas 0:1e61ade20a23 385 void drawRect(unsigned int const x0,
kamtas 0:1e61ade20a23 386 unsigned int const y0,
kamtas 0:1e61ade20a23 387 unsigned int const width,
kamtas 0:1e61ade20a23 388 unsigned int const height,
kamtas 0:1e61ade20a23 389 FillType const fill);
kamtas 0:1e61ade20a23 390
kamtas 0:1e61ade20a23 391 private:
kamtas 0:1e61ade20a23 392 // methods
kamtas 0:1e61ade20a23 393 void setXYAddress(unsigned int const x,
kamtas 0:1e61ade20a23 394 unsigned int const y);
kamtas 0:1e61ade20a23 395 void initSPI();
kamtas 0:1e61ade20a23 396 void turnOn();
kamtas 0:1e61ade20a23 397 void reset();
kamtas 0:1e61ade20a23 398 void clearRAM();
kamtas 0:1e61ade20a23 399 void sendCommand(unsigned char command);
kamtas 0:1e61ade20a23 400 void sendData(unsigned char data);
kamtas 0:1e61ade20a23 401 };
kamtas 0:1e61ade20a23 402
kamtas 0:1e61ade20a23 403 const unsigned char font5x7[480] = {
kamtas 0:1e61ade20a23 404 0x00, 0x00, 0x00, 0x00, 0x00,// (space)
kamtas 0:1e61ade20a23 405 0x00, 0x00, 0x5F, 0x00, 0x00,// !
kamtas 0:1e61ade20a23 406 0x00, 0x07, 0x00, 0x07, 0x00,// "
kamtas 0:1e61ade20a23 407 0x14, 0x7F, 0x14, 0x7F, 0x14,// #
kamtas 0:1e61ade20a23 408 0x24, 0x2A, 0x7F, 0x2A, 0x12,// $
kamtas 0:1e61ade20a23 409 0x23, 0x13, 0x08, 0x64, 0x62,// %
kamtas 0:1e61ade20a23 410 0x36, 0x49, 0x55, 0x22, 0x50,// &
kamtas 0:1e61ade20a23 411 0x00, 0x05, 0x03, 0x00, 0x00,// '
kamtas 0:1e61ade20a23 412 0x00, 0x1C, 0x22, 0x41, 0x00,// (
kamtas 0:1e61ade20a23 413 0x00, 0x41, 0x22, 0x1C, 0x00,// )
kamtas 0:1e61ade20a23 414 0x08, 0x2A, 0x1C, 0x2A, 0x08,// *
kamtas 0:1e61ade20a23 415 0x08, 0x08, 0x3E, 0x08, 0x08,// +
kamtas 0:1e61ade20a23 416 0x00, 0x50, 0x30, 0x00, 0x00,// ,
kamtas 0:1e61ade20a23 417 0x08, 0x08, 0x08, 0x08, 0x08,// -
kamtas 0:1e61ade20a23 418 0x00, 0x60, 0x60, 0x00, 0x00,// .
kamtas 0:1e61ade20a23 419 0x20, 0x10, 0x08, 0x04, 0x02,// /
kamtas 0:1e61ade20a23 420 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
kamtas 0:1e61ade20a23 421 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
kamtas 0:1e61ade20a23 422 0x42, 0x61, 0x51, 0x49, 0x46,// 2
kamtas 0:1e61ade20a23 423 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
kamtas 0:1e61ade20a23 424 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
kamtas 0:1e61ade20a23 425 0x27, 0x45, 0x45, 0x45, 0x39,// 5
kamtas 0:1e61ade20a23 426 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
kamtas 0:1e61ade20a23 427 0x01, 0x71, 0x09, 0x05, 0x03,// 7
kamtas 0:1e61ade20a23 428 0x36, 0x49, 0x49, 0x49, 0x36,// 8
kamtas 0:1e61ade20a23 429 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
kamtas 0:1e61ade20a23 430 0x00, 0x36, 0x36, 0x00, 0x00,// :
kamtas 0:1e61ade20a23 431 0x00, 0x56, 0x36, 0x00, 0x00,// ;
kamtas 0:1e61ade20a23 432 0x00, 0x08, 0x14, 0x22, 0x41,// <
kamtas 0:1e61ade20a23 433 0x14, 0x14, 0x14, 0x14, 0x14,// =
kamtas 0:1e61ade20a23 434 0x41, 0x22, 0x14, 0x08, 0x00,// >
kamtas 0:1e61ade20a23 435 0x02, 0x01, 0x51, 0x09, 0x06,// ?
kamtas 0:1e61ade20a23 436 0x32, 0x49, 0x79, 0x41, 0x3E,// @
kamtas 0:1e61ade20a23 437 0x7E, 0x11, 0x11, 0x11, 0x7E,// A
kamtas 0:1e61ade20a23 438 0x7F, 0x49, 0x49, 0x49, 0x36,// B
kamtas 0:1e61ade20a23 439 0x3E, 0x41, 0x41, 0x41, 0x22,// C
kamtas 0:1e61ade20a23 440 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
kamtas 0:1e61ade20a23 441 0x7F, 0x49, 0x49, 0x49, 0x41,// E
kamtas 0:1e61ade20a23 442 0x7F, 0x09, 0x09, 0x01, 0x01,// F
kamtas 0:1e61ade20a23 443 0x3E, 0x41, 0x41, 0x51, 0x32,// G
kamtas 0:1e61ade20a23 444 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
kamtas 0:1e61ade20a23 445 0x00, 0x41, 0x7F, 0x41, 0x00,// I
kamtas 0:1e61ade20a23 446 0x20, 0x40, 0x41, 0x3F, 0x01,// J
kamtas 0:1e61ade20a23 447 0x7F, 0x08, 0x14, 0x22, 0x41,// K
kamtas 0:1e61ade20a23 448 0x7F, 0x40, 0x40, 0x40, 0x40,// L
kamtas 0:1e61ade20a23 449 0x7F, 0x02, 0x04, 0x02, 0x7F,// M
kamtas 0:1e61ade20a23 450 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
kamtas 0:1e61ade20a23 451 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
kamtas 0:1e61ade20a23 452 0x7F, 0x09, 0x09, 0x09, 0x06,// P
kamtas 0:1e61ade20a23 453 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
kamtas 0:1e61ade20a23 454 0x7F, 0x09, 0x19, 0x29, 0x46,// R
kamtas 0:1e61ade20a23 455 0x46, 0x49, 0x49, 0x49, 0x31,// S
kamtas 0:1e61ade20a23 456 0x01, 0x01, 0x7F, 0x01, 0x01,// T
kamtas 0:1e61ade20a23 457 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
kamtas 0:1e61ade20a23 458 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
kamtas 0:1e61ade20a23 459 0x7F, 0x20, 0x18, 0x20, 0x7F,// W
kamtas 0:1e61ade20a23 460 0x63, 0x14, 0x08, 0x14, 0x63,// X
kamtas 0:1e61ade20a23 461 0x03, 0x04, 0x78, 0x04, 0x03,// Y
kamtas 0:1e61ade20a23 462 0x61, 0x51, 0x49, 0x45, 0x43,// Z
kamtas 0:1e61ade20a23 463 0x00, 0x00, 0x7F, 0x41, 0x41,// [
kamtas 0:1e61ade20a23 464 0x02, 0x04, 0x08, 0x10, 0x20,// "\"
kamtas 0:1e61ade20a23 465 0x41, 0x41, 0x7F, 0x00, 0x00,// ]
kamtas 0:1e61ade20a23 466 0x04, 0x02, 0x01, 0x02, 0x04,// ^
kamtas 0:1e61ade20a23 467 0x40, 0x40, 0x40, 0x40, 0x40,// _
kamtas 0:1e61ade20a23 468 0x00, 0x01, 0x02, 0x04, 0x00,// `
kamtas 0:1e61ade20a23 469 0x20, 0x54, 0x54, 0x54, 0x78,// a
kamtas 0:1e61ade20a23 470 0x7F, 0x48, 0x44, 0x44, 0x38,// b
kamtas 0:1e61ade20a23 471 0x38, 0x44, 0x44, 0x44, 0x20,// c
kamtas 0:1e61ade20a23 472 0x38, 0x44, 0x44, 0x48, 0x7F,// d
kamtas 0:1e61ade20a23 473 0x38, 0x54, 0x54, 0x54, 0x18,// e
kamtas 0:1e61ade20a23 474 0x08, 0x7E, 0x09, 0x01, 0x02,// f
kamtas 0:1e61ade20a23 475 0x08, 0x14, 0x54, 0x54, 0x3C,// g
kamtas 0:1e61ade20a23 476 0x7F, 0x08, 0x04, 0x04, 0x78,// h
kamtas 0:1e61ade20a23 477 0x00, 0x44, 0x7D, 0x40, 0x00,// i
kamtas 0:1e61ade20a23 478 0x20, 0x40, 0x44, 0x3D, 0x00,// j
kamtas 0:1e61ade20a23 479 0x00, 0x7F, 0x10, 0x28, 0x44,// k
kamtas 0:1e61ade20a23 480 0x00, 0x41, 0x7F, 0x40, 0x00,// l
kamtas 0:1e61ade20a23 481 0x7C, 0x04, 0x18, 0x04, 0x78,// m
kamtas 0:1e61ade20a23 482 0x7C, 0x08, 0x04, 0x04, 0x78,// n
kamtas 0:1e61ade20a23 483 0x38, 0x44, 0x44, 0x44, 0x38,// o
kamtas 0:1e61ade20a23 484 0x7C, 0x14, 0x14, 0x14, 0x08,// p
kamtas 0:1e61ade20a23 485 0x08, 0x14, 0x14, 0x18, 0x7C,// q
kamtas 0:1e61ade20a23 486 0x7C, 0x08, 0x04, 0x04, 0x08,// r
kamtas 0:1e61ade20a23 487 0x48, 0x54, 0x54, 0x54, 0x20,// s
kamtas 0:1e61ade20a23 488 0x04, 0x3F, 0x44, 0x40, 0x20,// t
kamtas 0:1e61ade20a23 489 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
kamtas 0:1e61ade20a23 490 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
kamtas 0:1e61ade20a23 491 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
kamtas 0:1e61ade20a23 492 0x44, 0x28, 0x10, 0x28, 0x44,// x
kamtas 0:1e61ade20a23 493 0x0C, 0x50, 0x50, 0x50, 0x3C,// y
kamtas 0:1e61ade20a23 494 0x44, 0x64, 0x54, 0x4C, 0x44,// z
kamtas 0:1e61ade20a23 495 0x00, 0x08, 0x36, 0x41, 0x00,// {
kamtas 0:1e61ade20a23 496 0x00, 0x00, 0x7F, 0x00, 0x00,// |
kamtas 0:1e61ade20a23 497 0x00, 0x41, 0x36, 0x08, 0x00,// }
kamtas 0:1e61ade20a23 498 0x08, 0x08, 0x2A, 0x1C, 0x08,// ->
kamtas 0:1e61ade20a23 499 0x08, 0x1C, 0x2A, 0x08, 0x08 // <-
kamtas 0:1e61ade20a23 500 };
kamtas 0:1e61ade20a23 501
kamtas 0:1e61ade20a23 502 #endif