Craig Evans / N5110

Library for interfacing to Nokia 5110 LCD display (as found on the SparkFun website).

Dependents:   LV7_LCDtest LV7_Grupa5_Tim003_Zadatak1 lv7_Grupa5_Tim008_zad1 LV7_PAI_Grupa5_tim10_Zadatak1 ... more

This library is designed to make it easy to interface an mbed with a Nokia 5110 LCD display.

These can be found at Sparkfun (https://www.sparkfun.com/products/10168) and Adafruit (http://www.adafruit.com/product/338).

The library uses the SPI peripheral on the mbed which means it is much faster sending data to the display than other libraries available on other platforms that use software SPI.

The library can print strings as well as controlling individual pixels, meaning that both text and primitive graphics can be displayed.

N5110.h@37:c708b92609aa, 2017-03-07 (annotated)

Committer:
eencae
Date:
Tue Mar 07 16:59:03 2017 +0000
Revision:
37:c708b92609aa
Parent:
36:00ebd449b6f3
Child:
40:c9262294f2e1
Updated example code.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
eencae 25:444e55e2e419 1 #ifndef N5110_H
eencae 25:444e55e2e419 2 #define N5110_H
eencae 25:444e55e2e419 3
eencae 25:444e55e2e419 4 #include "mbed.h"
eencae 1:df68f34cd32d 5
eencae 25:444e55e2e419 6 // Command Bytes - taken from Chris Yan's library
eencae 25:444e55e2e419 7 // More information can be found in the display datasheet
eencae 25:444e55e2e419 8 // H = 0 - Basic instructions
eencae 25:444e55e2e419 9 #define CMD_DC_CLEAR_DISPLAY 0x08
eencae 25:444e55e2e419 10 #define CMD_DC_NORMAL_MODE 0x0C
eencae 25:444e55e2e419 11 #define CMD_DC_FILL_DISPLAY 0x09
eencae 25:444e55e2e419 12 #define CMD_DC_INVERT_VIDEO 0x0D
eencae 25:444e55e2e419 13 #define CMD_FS_HORIZONTAL_MODE 0x00
eencae 25:444e55e2e419 14 #define CMD_FS_VERTICAL_MODE 0x02
eencae 25:444e55e2e419 15 #define CMD_FS_BASIC_MODE 0x00
eencae 25:444e55e2e419 16 #define CMD_FS_EXTENDED_MODE 0x01
eencae 25:444e55e2e419 17 #define CMD_FS_ACTIVE_MODE 0x00
eencae 25:444e55e2e419 18 #define CMD_FS_POWER_DOWN_MODE 0x04
eencae 25:444e55e2e419 19 // H = 1 - Extended instructions
eencae 25:444e55e2e419 20 #define CMD_TC_TEMP_0 0x04
eencae 25:444e55e2e419 21 #define CMD_TC_TEMP_1 0x05
eencae 25:444e55e2e419 22 #define CMD_TC_TEMP_2 0x06
eencae 25:444e55e2e419 23 #define CMD_TC_TEMP_3 0x07
eencae 25:444e55e2e419 24 #define CMD_BI_MUX_24 0x15
eencae 25:444e55e2e419 25 #define CMD_BI_MUX_48 0x13
eencae 25:444e55e2e419 26 #define CMD_BI_MUX_100 0x10
eencae 25:444e55e2e419 27 #define CMD_VOP_6V06 0xB2
eencae 25:444e55e2e419 28 #define CMD_VOP_7V38 0xC8
eencae 25:444e55e2e419 29
eencae 25:444e55e2e419 30 // number of pixels on display
eencae 25:444e55e2e419 31 #define WIDTH 84
eencae 25:444e55e2e419 32 #define HEIGHT 48
eencae 25:444e55e2e419 33 #define BANKS 6
eencae 25:444e55e2e419 34
valavanisalex 33:d80e568a2e18 35 /// Fill types for 2D shapes
valavanisalex 33:d80e568a2e18 36 enum FillType {
valavanisalex 33:d80e568a2e18 37 FILL_TRANSPARENT, ///< Transparent with outline
valavanisalex 33:d80e568a2e18 38 FILL_BLACK, ///< Filled black
valavanisalex 33:d80e568a2e18 39 FILL_WHITE, ///< Filled white (no outline)
valavanisalex 33:d80e568a2e18 40 };
valavanisalex 33:d80e568a2e18 41
eencae 25:444e55e2e419 42 /** N5110 Class
eencae 24:342bdb6679a1 43 @brief Library for interfacing with Nokia 5110 LCD display (https://www.sparkfun.com/products/10168) using the hardware SPI on the mbed.
eencae 24:342bdb6679a1 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).
eencae 24:342bdb6679a1 45 @brief Can print characters and strings to the display using the included 5x7 font.
eencae 24:342bdb6679a1 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.
eencae 24:342bdb6679a1 47 @brief The library can print primitive shapes (lines, circles, rectangles)
eencae 24:342bdb6679a1 48 @brief Acknowledgements to Chris Yan's Nokia_5110 Library.
eencae 24:342bdb6679a1 49
eencae 24:342bdb6679a1 50 @brief Revision 1.3
eencae 24:342bdb6679a1 51
eencae 24:342bdb6679a1 52 @author Craig A. Evans
eencae 24:342bdb6679a1 53 @date 7th February 2017
eencae 24:342bdb6679a1 54
eencae 24:342bdb6679a1 55 @code
eencae 24:342bdb6679a1 56
eencae 24:342bdb6679a1 57 #include "mbed.h"
eencae 24:342bdb6679a1 58 #include "N5110.h"
eencae 24:342bdb6679a1 59
eencae 37:c708b92609aa 60 // rows,cols
eencae 37:c708b92609aa 61 int sprite[8][5] = {
eencae 37:c708b92609aa 62 { 0,0,1,0,0 },
eencae 37:c708b92609aa 63 { 0,1,1,1,0 },
eencae 37:c708b92609aa 64 { 0,0,1,0,0 },
eencae 37:c708b92609aa 65 { 0,1,1,1,0 },
eencae 37:c708b92609aa 66 { 1,1,1,1,1 },
eencae 37:c708b92609aa 67 { 1,1,1,1,1 },
eencae 37:c708b92609aa 68 { 1,1,0,1,1 },
eencae 37:c708b92609aa 69 { 1,1,0,1,1 },
eencae 37:c708b92609aa 70 };
eencae 37:c708b92609aa 71
eencae 24:342bdb6679a1 72 // VCC,SCE,RST,D/C,MOSI,SCLK,LED
eencae 24:342bdb6679a1 73 //N5110 lcd(p7,p8,p9,p10,p11,p13,p21); // LPC1768 - pwr from GPIO
eencae 37:c708b92609aa 74 N5110 lcd(p8,p9,p10,p11,p13,p21); // LPC1768 - powered from +3V3 - JP1 in 2/3 position
eencae 37:c708b92609aa 75 //N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11); // K64F - pwr from 3V3
eencae 24:342bdb6679a1 76
eencae 24:342bdb6679a1 77 int main()
eencae 24:342bdb6679a1 78 {
eencae 24:342bdb6679a1 79 // first need to initialise display
eencae 24:342bdb6679a1 80 lcd.init();
eencae 24:342bdb6679a1 81
eencae 24:342bdb6679a1 82 while(1) {
eencae 24:342bdb6679a1 83
eencae 24:342bdb6679a1 84 // these are default settings so not strictly needed
eencae 24:342bdb6679a1 85 lcd.normalMode(); // normal colour mode
eencae 24:342bdb6679a1 86 lcd.setBrightness(0.5); // put LED backlight on 50%
eencae 24:342bdb6679a1 87
eencae 37:c708b92609aa 88 lcd.clear();
eencae 37:c708b92609aa 89 // x origin, y origin, rows, cols, sprite
eencae 37:c708b92609aa 90 lcd.drawSprite(20,6,8,5,(int *)sprite);
eencae 37:c708b92609aa 91 lcd.refresh();
eencae 37:c708b92609aa 92 wait(5.0);
eencae 37:c708b92609aa 93
eencae 24:342bdb6679a1 94 lcd.clear(); // clear buffer at start of every loop
eencae 24:342bdb6679a1 95 // can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display)
eencae 24:342bdb6679a1 96 lcd.printString("Hello, World!",0,0);
eencae 24:342bdb6679a1 97
eencae 24:342bdb6679a1 98 char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
eencae 24:342bdb6679a1 99 // so can display a string of a maximum 14 characters in length
eencae 24:342bdb6679a1 100 // or create formatted strings - ensure they aren't more than 14 characters long
eencae 24:342bdb6679a1 101 int temperature = 27;
eencae 24:342bdb6679a1 102 int length = sprintf(buffer,"T = %2d C",temperature); // print formatted data to buffer
eencae 24:342bdb6679a1 103 // it is important the format specifier ensures the length will fit in the buffer
eencae 24:342bdb6679a1 104 if (length <= 14) // if string will fit on display (assuming printing at x=0)
eencae 24:342bdb6679a1 105 lcd.printString(buffer,0,1); // display on screen
eencae 24:342bdb6679a1 106
eencae 24:342bdb6679a1 107 float pressure = 1012.3; // same idea with floats
eencae 24:342bdb6679a1 108 length = sprintf(buffer,"P = %.2f mb",pressure);
eencae 24:342bdb6679a1 109 if (length <= 14)
eencae 24:342bdb6679a1 110 lcd.printString(buffer,0,2);
eencae 24:342bdb6679a1 111
eencae 24:342bdb6679a1 112 // can also print individual characters at specified place
eencae 24:342bdb6679a1 113 lcd.printChar('X',5,3);
eencae 24:342bdb6679a1 114
eencae 24:342bdb6679a1 115 // draw a line across the display at y = 40 pixels (origin top-left)
eencae 24:342bdb6679a1 116 for (int i = 0; i < WIDTH; i++) {
eencae 24:342bdb6679a1 117 lcd.setPixel(i,40);
eencae 24:342bdb6679a1 118 }
eencae 24:342bdb6679a1 119 // need to refresh display after setting pixels or writing strings
eencae 24:342bdb6679a1 120 lcd.refresh();
eencae 24:342bdb6679a1 121 wait(5.0);
valavanisalex 29:5bc91bd44c77 122
eencae 37:c708b92609aa 123 for(int i = 0; i < 3; i++) {
eencae 37:c708b92609aa 124 for(int j = 0; j < 5; j++) {
eencae 37:c708b92609aa 125 printf("%d,%d = %d\n",i,j,glyph[i][j]);
eencae 37:c708b92609aa 126 }
eencae 37:c708b92609aa 127 }
eencae 37:c708b92609aa 128
eencae 37:c708b92609aa 129
eencae 37:c708b92609aa 130
eencae 24:342bdb6679a1 131 // can check status of pixel using getPixel(x,y);
eencae 24:342bdb6679a1 132 lcd.clear(); // clear buffer
eencae 24:342bdb6679a1 133 lcd.setPixel(2,2); // set random pixel in buffer
eencae 24:342bdb6679a1 134 lcd.refresh();
valavanisalex 29:5bc91bd44c77 135 wait(1.0);
valavanisalex 29:5bc91bd44c77 136
eencae 24:342bdb6679a1 137 int pixel_to_test = lcd.getPixel(2,2);
valavanisalex 29:5bc91bd44c77 138
eencae 24:342bdb6679a1 139 if ( pixel_to_test ) {
valavanisalex 29:5bc91bd44c77 140 lcd.printString("2,2 is set",0,4);
eencae 24:342bdb6679a1 141 }
valavanisalex 29:5bc91bd44c77 142
eencae 24:342bdb6679a1 143 // this one shouldn't be set
eencae 24:342bdb6679a1 144 pixel_to_test = lcd.getPixel(3,3);
valavanisalex 29:5bc91bd44c77 145
eencae 24:342bdb6679a1 146 if ( pixel_to_test == 0 ) {
valavanisalex 29:5bc91bd44c77 147 lcd.printString("3,3 is clear",0,5);
eencae 24:342bdb6679a1 148 }
valavanisalex 29:5bc91bd44c77 149
eencae 24:342bdb6679a1 150 lcd.refresh();
eencae 24:342bdb6679a1 151 wait(4.0);
valavanisalex 29:5bc91bd44c77 152
eencae 24:342bdb6679a1 153 lcd.clear(); // clear buffer
eencae 24:342bdb6679a1 154 lcd.inverseMode(); // invert colours
eencae 24:342bdb6679a1 155 lcd.setBrightness(1.0); // put LED backlight on full
eencae 24:342bdb6679a1 156
eencae 24:342bdb6679a1 157 float array[84];
eencae 24:342bdb6679a1 158
eencae 24:342bdb6679a1 159 for (int i = 0; i < 84; i++) {
eencae 24:342bdb6679a1 160 array[i] = 0.5 + 0.5*sin(i*2*3.14/84);
eencae 24:342bdb6679a1 161 }
eencae 24:342bdb6679a1 162
eencae 24:342bdb6679a1 163 // can also plot graphs - 84 elements only
eencae 24:342bdb6679a1 164 // values must be in range 0.0 - 1.0
eencae 24:342bdb6679a1 165 lcd.plotArray(array);
eencae 24:342bdb6679a1 166 lcd.refresh();
eencae 24:342bdb6679a1 167 wait(5.0);
valavanisalex 29:5bc91bd44c77 168
eencae 24:342bdb6679a1 169 lcd.clear();
eencae 24:342bdb6679a1 170 lcd.normalMode(); // normal colour mode back
eencae 24:342bdb6679a1 171 lcd.setBrightness(0.5); // put LED backlight on 50%
eencae 24:342bdb6679a1 172
eencae 24:342bdb6679a1 173 // example of drawing lines
eencae 24:342bdb6679a1 174 for (int x = 0; x < WIDTH ; x+=10) {
eencae 24:342bdb6679a1 175 // x0,y0,x1,y1,type 0-white,1-black,2-dotted
eencae 24:342bdb6679a1 176 lcd.drawLine(0,0,x,HEIGHT,2);
eencae 24:342bdb6679a1 177 }
eencae 24:342bdb6679a1 178 lcd.refresh(); // refresh after drawing shapes
eencae 24:342bdb6679a1 179 wait(5.0);
valavanisalex 29:5bc91bd44c77 180
valavanisalex 29:5bc91bd44c77 181
eencae 24:342bdb6679a1 182 lcd.clear();
eencae 24:342bdb6679a1 183 // example of how to draw circles
valavanisalex 33:d80e568a2e18 184 lcd.drawCircle(WIDTH/2,HEIGHT/2,20,FILL_BLACK); // x,y,radius,black fill
valavanisalex 33:d80e568a2e18 185 lcd.drawCircle(WIDTH/2,HEIGHT/2,10,FILL_WHITE); // x,y,radius,white fill
valavanisalex 33:d80e568a2e18 186 lcd.drawCircle(WIDTH/2,HEIGHT/2,30,FILL_TRANSPARENT); // x,y,radius,transparent with outline
eencae 24:342bdb6679a1 187 lcd.refresh(); // refresh after drawing shapes
eencae 24:342bdb6679a1 188 wait(5.0);
valavanisalex 29:5bc91bd44c77 189
eencae 24:342bdb6679a1 190 lcd.clear();
eencae 24:342bdb6679a1 191 // example of how to draw rectangles
eencae 24:342bdb6679a1 192 // origin x,y,width,height,type
valavanisalex 33:d80e568a2e18 193 lcd.drawRect(10,10,50,30,FILL_BLACK); // filled black rectangle
valavanisalex 33:d80e568a2e18 194 lcd.drawRect(15,15,20,10,FILL_WHITE); // filled white rectange (no outline)
eencae 37:c708b92609aa 195 lcd.drawRect(2,2,70,40,FILL_TRANSPARENT); // transparent, just outline
eencae 24:342bdb6679a1 196 lcd.refresh(); // refresh after drawing shapes
eencae 24:342bdb6679a1 197 wait(5.0);
eencae 37:c708b92609aa 198
eencae 24:342bdb6679a1 199 }
eencae 24:342bdb6679a1 200 }
eencae 24:342bdb6679a1 201
eencae 37:c708b92609aa 202
eencae 24:342bdb6679a1 203 @endcode
eencae 0:d563e74f0ae9 204 */
eencae 1:df68f34cd32d 205 class N5110
eencae 1:df68f34cd32d 206 {
valavanisalex 29:5bc91bd44c77 207 private:
valavanisalex 29:5bc91bd44c77 208 // objects
valavanisalex 29:5bc91bd44c77 209 SPI *_spi;
valavanisalex 29:5bc91bd44c77 210 PwmOut *_led;
valavanisalex 29:5bc91bd44c77 211 DigitalOut *_pwr;
valavanisalex 29:5bc91bd44c77 212 DigitalOut *_sce;
valavanisalex 29:5bc91bd44c77 213 DigitalOut *_rst;
valavanisalex 29:5bc91bd44c77 214 DigitalOut *_dc;
valavanisalex 29:5bc91bd44c77 215
valavanisalex 29:5bc91bd44c77 216 // variables
valavanisalex 29:5bc91bd44c77 217 unsigned char buffer[84][6]; // screen buffer - the 6 is for the banks - each one is 8 bits;
eencae 0:d563e74f0ae9 218
eencae 1:df68f34cd32d 219 public:
valavanisalex 29:5bc91bd44c77 220 /** Create a N5110 object connected to the specified pins
valavanisalex 29:5bc91bd44c77 221 *
valavanisalex 29:5bc91bd44c77 222 * @param pwr Pin connected to Vcc on the LCD display (pin 1)
valavanisalex 29:5bc91bd44c77 223 * @param sce Pin connected to chip enable (pin 3)
valavanisalex 29:5bc91bd44c77 224 * @param rst Pin connected to reset (pin 4)
valavanisalex 29:5bc91bd44c77 225 * @param dc Pin connected to data/command select (pin 5)
valavanisalex 29:5bc91bd44c77 226 * @param mosi Pin connected to data input (MOSI) (pin 6)
valavanisalex 29:5bc91bd44c77 227 * @param sclk Pin connected to serial clock (SCLK) (pin 7)
valavanisalex 29:5bc91bd44c77 228 * @param led Pin connected to LED backlight (must be PWM) (pin 8)
valavanisalex 29:5bc91bd44c77 229 *
valavanisalex 29:5bc91bd44c77 230 */
valavanisalex 29:5bc91bd44c77 231 N5110(PinName const pwrPin,
valavanisalex 29:5bc91bd44c77 232 PinName const scePin,
valavanisalex 29:5bc91bd44c77 233 PinName const rstPin,
valavanisalex 29:5bc91bd44c77 234 PinName const dcPin,
valavanisalex 29:5bc91bd44c77 235 PinName const mosiPin,
valavanisalex 29:5bc91bd44c77 236 PinName const sclkPin,
valavanisalex 29:5bc91bd44c77 237 PinName const ledPin);
eencae 17:780a542d5f8b 238
valavanisalex 29:5bc91bd44c77 239 /** Create a N5110 object connected to the specified pins (Vcc to +3V3)
valavanisalex 29:5bc91bd44c77 240 *
valavanisalex 29:5bc91bd44c77 241 * @param sce Pin connected to chip enable (pin 3)
valavanisalex 29:5bc91bd44c77 242 * @param rst Pin connected to reset (pin 4)
valavanisalex 29:5bc91bd44c77 243 * @param dc Pin connected to data/command select (pin 5)
valavanisalex 29:5bc91bd44c77 244 * @param mosi Pin connected to data input (MOSI) (pin 6)
valavanisalex 29:5bc91bd44c77 245 * @param sclk Pin connected to serial clock (SCLK) (pin 7)
valavanisalex 29:5bc91bd44c77 246 * @param led Pin connected to LED backlight (must be PWM) (pin 8)
valavanisalex 29:5bc91bd44c77 247 *
valavanisalex 29:5bc91bd44c77 248 */
valavanisalex 29:5bc91bd44c77 249 N5110(PinName const scePin,
valavanisalex 29:5bc91bd44c77 250 PinName const rstPin,
valavanisalex 29:5bc91bd44c77 251 PinName const dcPin,
valavanisalex 29:5bc91bd44c77 252 PinName const mosiPin,
valavanisalex 29:5bc91bd44c77 253 PinName const sclkPin,
valavanisalex 29:5bc91bd44c77 254 PinName const ledPin);
eencae 17:780a542d5f8b 255
valavanisalex 31:8a0c21042f82 256 /**
valavanisalex 31:8a0c21042f82 257 * Free allocated memory when object goes out of scope
valavanisalex 31:8a0c21042f82 258 */
valavanisalex 31:8a0c21042f82 259 ~N5110();
valavanisalex 31:8a0c21042f82 260
valavanisalex 29:5bc91bd44c77 261 /** Initialise display
valavanisalex 29:5bc91bd44c77 262 *
valavanisalex 29:5bc91bd44c77 263 * Powers up the display and turns on backlight (50% brightness default).
valavanisalex 29:5bc91bd44c77 264 * Sets the display up in horizontal addressing mode and with normal video mode.
valavanisalex 29:5bc91bd44c77 265 */
valavanisalex 29:5bc91bd44c77 266 void init();
eencae 17:780a542d5f8b 267
valavanisalex 29:5bc91bd44c77 268 /** Turn off
valavanisalex 29:5bc91bd44c77 269 *
valavanisalex 29:5bc91bd44c77 270 * Powers down the display and turns of the backlight.
valavanisalex 29:5bc91bd44c77 271 * Needs to be reinitialised before being re-used.
valavanisalex 29:5bc91bd44c77 272 */
valavanisalex 29:5bc91bd44c77 273 void turnOff();
eencae 17:780a542d5f8b 274
valavanisalex 29:5bc91bd44c77 275 /** Clear
valavanisalex 29:5bc91bd44c77 276 *
valavanisalex 29:5bc91bd44c77 277 * Clears the screen buffer.
valavanisalex 29:5bc91bd44c77 278 */
valavanisalex 29:5bc91bd44c77 279 void clear();
eencae 17:780a542d5f8b 280
valavanisalex 29:5bc91bd44c77 281 /** Turn on normal video mode (default)
valavanisalex 29:5bc91bd44c77 282 * Black on white
valavanisalex 29:5bc91bd44c77 283 */
valavanisalex 29:5bc91bd44c77 284 void normalMode();
valavanisalex 29:5bc91bd44c77 285
valavanisalex 29:5bc91bd44c77 286 /** Turn on inverse video mode (default)
valavanisalex 29:5bc91bd44c77 287 * White on black
valavanisalex 29:5bc91bd44c77 288 */
valavanisalex 29:5bc91bd44c77 289 void inverseMode();
eencae 17:780a542d5f8b 290
valavanisalex 29:5bc91bd44c77 291 /** Set Brightness
valavanisalex 29:5bc91bd44c77 292 *
valavanisalex 29:5bc91bd44c77 293 * Sets brightness of LED backlight.
valavanisalex 29:5bc91bd44c77 294 * @param brightness - float in range 0.0 to 1.0
valavanisalex 29:5bc91bd44c77 295 */
valavanisalex 29:5bc91bd44c77 296 void setBrightness(float const brightness);
eencae 17:780a542d5f8b 297
valavanisalex 29:5bc91bd44c77 298 /** Print String
valavanisalex 29:5bc91bd44c77 299 *
valavanisalex 29:5bc91bd44c77 300 * Prints a string of characters to the screen buffer. String is cut-off after the 83rd pixel.
valavanisalex 29:5bc91bd44c77 301 * @param x - the column number (0 to 83)
valavanisalex 29:5bc91bd44c77 302 * @param y - the row number (0 to 5) - the display is split into 6 banks - each bank can be considered a row
valavanisalex 29:5bc91bd44c77 303 */
valavanisalex 29:5bc91bd44c77 304 void printString(char const *str,
valavanisalex 29:5bc91bd44c77 305 unsigned int const x,
valavanisalex 29:5bc91bd44c77 306 unsigned int const y);
eencae 17:780a542d5f8b 307
valavanisalex 29:5bc91bd44c77 308 /** Print Character
valavanisalex 29:5bc91bd44c77 309 *
valavanisalex 29:5bc91bd44c77 310 * Sends a character to the screen buffer. Printed at the specified location. Character is cut-off after the 83rd pixel.
valavanisalex 29:5bc91bd44c77 311 * @param c - the character to print. Can print ASCII as so printChar('C').
valavanisalex 29:5bc91bd44c77 312 * @param x - the column number (0 to 83)
valavanisalex 29:5bc91bd44c77 313 * @param y - the row number (0 to 5) - the display is split into 6 banks - each bank can be considered a row
valavanisalex 29:5bc91bd44c77 314 */
valavanisalex 29:5bc91bd44c77 315 void printChar(char const c,
valavanisalex 29:5bc91bd44c77 316 unsigned int const x,
valavanisalex 29:5bc91bd44c77 317 unsigned int const y);
eencae 17:780a542d5f8b 318
valavanisalex 29:5bc91bd44c77 319 /** Set a Pixel
valavanisalex 29:5bc91bd44c77 320 *
valavanisalex 29:5bc91bd44c77 321 * This function sets a pixel in the screen buffer.
valavanisalex 29:5bc91bd44c77 322 * @param x - the x co-ordinate of the pixel (0 to 83)
valavanisalex 29:5bc91bd44c77 323 * @param y - the y co-ordinate of the pixel (0 to 47)
valavanisalex 29:5bc91bd44c77 324 */
valavanisalex 29:5bc91bd44c77 325 void setPixel(unsigned int const x,
valavanisalex 29:5bc91bd44c77 326 unsigned int const y);
eencae 17:780a542d5f8b 327
valavanisalex 29:5bc91bd44c77 328 /** Clear a Pixel
valavanisalex 29:5bc91bd44c77 329 *
valavanisalex 29:5bc91bd44c77 330 * This function clears pixel in the screen buffer
valavanisalex 29:5bc91bd44c77 331 * @param x - the x co-ordinate of the pixel (0 to 83)
valavanisalex 29:5bc91bd44c77 332 * @param y - the y co-ordinate of the pixel (0 to 47)
valavanisalex 29:5bc91bd44c77 333 */
valavanisalex 29:5bc91bd44c77 334 void clearPixel(unsigned int const x,
valavanisalex 29:5bc91bd44c77 335 unsigned int const y);
eencae 17:780a542d5f8b 336
valavanisalex 29:5bc91bd44c77 337 /** Get a Pixel
valavanisalex 29:5bc91bd44c77 338 *
valavanisalex 29:5bc91bd44c77 339 * This function gets the status of a pixel in the screen buffer.
valavanisalex 29:5bc91bd44c77 340 * @param x - the x co-ordinate of the pixel (0 to 83)
valavanisalex 29:5bc91bd44c77 341 * @param y - the y co-ordinate of the pixel (0 to 47)
valavanisalex 29:5bc91bd44c77 342 * @returns
valavanisalex 29:5bc91bd44c77 343 * 0 - pixel is clear
valavanisalex 29:5bc91bd44c77 344 * 1 - pixel is set
valavanisalex 29:5bc91bd44c77 345 */
valavanisalex 29:5bc91bd44c77 346 int getPixel(unsigned int const x,
valavanisalex 29:5bc91bd44c77 347 unsigned int const y) const;
eencae 17:780a542d5f8b 348
valavanisalex 29:5bc91bd44c77 349 /** Refresh display
valavanisalex 29:5bc91bd44c77 350 *
valavanisalex 29:5bc91bd44c77 351 * This functions sends the screen buffer to the display.
valavanisalex 29:5bc91bd44c77 352 */
valavanisalex 29:5bc91bd44c77 353 void refresh();
valavanisalex 29:5bc91bd44c77 354
valavanisalex 29:5bc91bd44c77 355 /** Randomise buffer
valavanisalex 29:5bc91bd44c77 356 *
valavanisalex 29:5bc91bd44c77 357 * This function fills the buffer with random data. Can be used to test the display.
valavanisalex 29:5bc91bd44c77 358 * A call to refresh() must be made to update the display to reflect the change in pixels.
valavanisalex 29:5bc91bd44c77 359 * The seed is not set and so the generated pattern will probably be the same each time.
valavanisalex 29:5bc91bd44c77 360 * TODO: Randomise the seed - maybe using the noise on the AnalogIn pins.
valavanisalex 29:5bc91bd44c77 361 */
valavanisalex 29:5bc91bd44c77 362 void randomiseBuffer();
eencae 17:780a542d5f8b 363
valavanisalex 29:5bc91bd44c77 364 /** Plot Array
valavanisalex 29:5bc91bd44c77 365 *
valavanisalex 29:5bc91bd44c77 366 * This function plots a one-dimensional array in the buffer.
valavanisalex 29:5bc91bd44c77 367 * @param array[] - y values of the plot. Values should be normalised in the range 0.0 to 1.0. First 84 plotted.
valavanisalex 29:5bc91bd44c77 368 */
valavanisalex 29:5bc91bd44c77 369 void plotArray(float const array[]);
eencae 17:780a542d5f8b 370
valavanisalex 29:5bc91bd44c77 371 /** Draw Circle
valavanisalex 29:5bc91bd44c77 372 *
valavanisalex 29:5bc91bd44c77 373 * This function draws a circle at the specified origin with specified radius in the screen buffer
valavanisalex 29:5bc91bd44c77 374 * Uses the midpoint circle algorithm.
valavanisalex 29:5bc91bd44c77 375 * @see http://en.wikipedia.org/wiki/Midpoint_circle_algorithm
valavanisalex 33:d80e568a2e18 376 * @param x0 - x-coordinate of centre
valavanisalex 33:d80e568a2e18 377 * @param y0 - y-coordinate of centre
valavanisalex 29:5bc91bd44c77 378 * @param radius - radius of circle in pixels
valavanisalex 33:d80e568a2e18 379 * @param fill - fill-type for the shape
valavanisalex 29:5bc91bd44c77 380 */
valavanisalex 29:5bc91bd44c77 381 void drawCircle(unsigned int const x0,
valavanisalex 29:5bc91bd44c77 382 unsigned int const y0,
valavanisalex 29:5bc91bd44c77 383 unsigned int const radius,
valavanisalex 33:d80e568a2e18 384 FillType const fill);
eencae 1:df68f34cd32d 385
valavanisalex 29:5bc91bd44c77 386 /** Draw Line
valavanisalex 29:5bc91bd44c77 387 *
valavanisalex 29:5bc91bd44c77 388 * This function draws a line between the specified points using linear interpolation.
valavanisalex 29:5bc91bd44c77 389 * @param x0 - x-coordinate of first point
valavanisalex 29:5bc91bd44c77 390 * @param y0 - y-coordinate of first point
valavanisalex 29:5bc91bd44c77 391 * @param x1 - x-coordinate of last point
valavanisalex 29:5bc91bd44c77 392 * @param y1 - y-coordinate of last point
valavanisalex 29:5bc91bd44c77 393 * @param type - 0 white,1 black,2 dotted
valavanisalex 29:5bc91bd44c77 394 */
valavanisalex 29:5bc91bd44c77 395 void drawLine(unsigned int const x0,
valavanisalex 29:5bc91bd44c77 396 unsigned int const y0,
valavanisalex 29:5bc91bd44c77 397 unsigned int const x1,
valavanisalex 29:5bc91bd44c77 398 unsigned int const y1,
valavanisalex 29:5bc91bd44c77 399 unsigned int const type);
eencae 17:780a542d5f8b 400
valavanisalex 29:5bc91bd44c77 401 /** Draw Rectangle
valavanisalex 29:5bc91bd44c77 402 *
valavanisalex 29:5bc91bd44c77 403 * This function draws a rectangle.
valavanisalex 29:5bc91bd44c77 404 * @param x0 - x-coordinate of origin (top-left)
valavanisalex 29:5bc91bd44c77 405 * @param y0 - y-coordinate of origin (top-left)
valavanisalex 29:5bc91bd44c77 406 * @param width - width of rectangle
valavanisalex 29:5bc91bd44c77 407 * @param height - height of rectangle
valavanisalex 33:d80e568a2e18 408 * @param fill - fill-type for the shape
valavanisalex 29:5bc91bd44c77 409 */
valavanisalex 29:5bc91bd44c77 410 void drawRect(unsigned int const x0,
valavanisalex 29:5bc91bd44c77 411 unsigned int const y0,
valavanisalex 29:5bc91bd44c77 412 unsigned int const width,
valavanisalex 29:5bc91bd44c77 413 unsigned int const height,
valavanisalex 33:d80e568a2e18 414 FillType const fill);
eencae 17:780a542d5f8b 415
eencae 36:00ebd449b6f3 416 /** Draw Sprite
eencae 36:00ebd449b6f3 417 *
eencae 36:00ebd449b6f3 418 * This function draws a sprite as defined in a 2D array
eencae 36:00ebd449b6f3 419 * @param x0 - x-coordinate of origin (top-left)
eencae 36:00ebd449b6f3 420 * @param y0 - y-coordinate of origin (top-left)
eencae 36:00ebd449b6f3 421 * @param nrows - number of rows in sprite
eencae 36:00ebd449b6f3 422 * @param ncols - number of columns in sprite
eencae 36:00ebd449b6f3 423 * @param sprite - 2D array representing the sprite
eencae 36:00ebd449b6f3 424 */
eencae 36:00ebd449b6f3 425 void drawSprite(int x0,
eencae 36:00ebd449b6f3 426 int y0,
eencae 36:00ebd449b6f3 427 int nrows,
eencae 36:00ebd449b6f3 428 int ncols,
eencae 36:00ebd449b6f3 429 int *sprite);
eencae 35:2d5931a66fba 430
eencae 1:df68f34cd32d 431 private:
eencae 24:342bdb6679a1 432 // methods
valavanisalex 29:5bc91bd44c77 433 void setXYAddress(unsigned int const x,
valavanisalex 29:5bc91bd44c77 434 unsigned int const y);
valavanisalex 29:5bc91bd44c77 435 void initSPI();
valavanisalex 29:5bc91bd44c77 436 void turnOn();
valavanisalex 29:5bc91bd44c77 437 void reset();
valavanisalex 29:5bc91bd44c77 438 void clearRAM();
valavanisalex 29:5bc91bd44c77 439 void sendCommand(unsigned char command);
valavanisalex 29:5bc91bd44c77 440 void sendData(unsigned char data);
eencae 0:d563e74f0ae9 441 };
eencae 0:d563e74f0ae9 442
eencae 0:d563e74f0ae9 443 const unsigned char font5x7[480] = {
valavanisalex 29:5bc91bd44c77 444 0x00, 0x00, 0x00, 0x00, 0x00,// (space)
valavanisalex 29:5bc91bd44c77 445 0x00, 0x00, 0x5F, 0x00, 0x00,// !
valavanisalex 29:5bc91bd44c77 446 0x00, 0x07, 0x00, 0x07, 0x00,// "
valavanisalex 29:5bc91bd44c77 447 0x14, 0x7F, 0x14, 0x7F, 0x14,// #
valavanisalex 29:5bc91bd44c77 448 0x24, 0x2A, 0x7F, 0x2A, 0x12,// $
valavanisalex 29:5bc91bd44c77 449 0x23, 0x13, 0x08, 0x64, 0x62,// %
valavanisalex 29:5bc91bd44c77 450 0x36, 0x49, 0x55, 0x22, 0x50,// &
valavanisalex 29:5bc91bd44c77 451 0x00, 0x05, 0x03, 0x00, 0x00,// '
valavanisalex 29:5bc91bd44c77 452 0x00, 0x1C, 0x22, 0x41, 0x00,// (
valavanisalex 29:5bc91bd44c77 453 0x00, 0x41, 0x22, 0x1C, 0x00,// )
valavanisalex 29:5bc91bd44c77 454 0x08, 0x2A, 0x1C, 0x2A, 0x08,// *
valavanisalex 29:5bc91bd44c77 455 0x08, 0x08, 0x3E, 0x08, 0x08,// +
valavanisalex 29:5bc91bd44c77 456 0x00, 0x50, 0x30, 0x00, 0x00,// ,
valavanisalex 29:5bc91bd44c77 457 0x08, 0x08, 0x08, 0x08, 0x08,// -
valavanisalex 29:5bc91bd44c77 458 0x00, 0x60, 0x60, 0x00, 0x00,// .
valavanisalex 29:5bc91bd44c77 459 0x20, 0x10, 0x08, 0x04, 0x02,// /
valavanisalex 29:5bc91bd44c77 460 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
valavanisalex 29:5bc91bd44c77 461 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
valavanisalex 29:5bc91bd44c77 462 0x42, 0x61, 0x51, 0x49, 0x46,// 2
valavanisalex 29:5bc91bd44c77 463 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
valavanisalex 29:5bc91bd44c77 464 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
valavanisalex 29:5bc91bd44c77 465 0x27, 0x45, 0x45, 0x45, 0x39,// 5
valavanisalex 29:5bc91bd44c77 466 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
valavanisalex 29:5bc91bd44c77 467 0x01, 0x71, 0x09, 0x05, 0x03,// 7
valavanisalex 29:5bc91bd44c77 468 0x36, 0x49, 0x49, 0x49, 0x36,// 8
valavanisalex 29:5bc91bd44c77 469 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
valavanisalex 29:5bc91bd44c77 470 0x00, 0x36, 0x36, 0x00, 0x00,// :
valavanisalex 29:5bc91bd44c77 471 0x00, 0x56, 0x36, 0x00, 0x00,// ;
valavanisalex 29:5bc91bd44c77 472 0x00, 0x08, 0x14, 0x22, 0x41,// <
valavanisalex 29:5bc91bd44c77 473 0x14, 0x14, 0x14, 0x14, 0x14,// =
valavanisalex 29:5bc91bd44c77 474 0x41, 0x22, 0x14, 0x08, 0x00,// >
valavanisalex 29:5bc91bd44c77 475 0x02, 0x01, 0x51, 0x09, 0x06,// ?
valavanisalex 29:5bc91bd44c77 476 0x32, 0x49, 0x79, 0x41, 0x3E,// @
valavanisalex 29:5bc91bd44c77 477 0x7E, 0x11, 0x11, 0x11, 0x7E,// A
valavanisalex 29:5bc91bd44c77 478 0x7F, 0x49, 0x49, 0x49, 0x36,// B
valavanisalex 29:5bc91bd44c77 479 0x3E, 0x41, 0x41, 0x41, 0x22,// C
valavanisalex 29:5bc91bd44c77 480 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
valavanisalex 29:5bc91bd44c77 481 0x7F, 0x49, 0x49, 0x49, 0x41,// E
valavanisalex 29:5bc91bd44c77 482 0x7F, 0x09, 0x09, 0x01, 0x01,// F
valavanisalex 29:5bc91bd44c77 483 0x3E, 0x41, 0x41, 0x51, 0x32,// G
valavanisalex 29:5bc91bd44c77 484 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
valavanisalex 29:5bc91bd44c77 485 0x00, 0x41, 0x7F, 0x41, 0x00,// I
valavanisalex 29:5bc91bd44c77 486 0x20, 0x40, 0x41, 0x3F, 0x01,// J
valavanisalex 29:5bc91bd44c77 487 0x7F, 0x08, 0x14, 0x22, 0x41,// K
valavanisalex 29:5bc91bd44c77 488 0x7F, 0x40, 0x40, 0x40, 0x40,// L
valavanisalex 29:5bc91bd44c77 489 0x7F, 0x02, 0x04, 0x02, 0x7F,// M
valavanisalex 29:5bc91bd44c77 490 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
valavanisalex 29:5bc91bd44c77 491 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
valavanisalex 29:5bc91bd44c77 492 0x7F, 0x09, 0x09, 0x09, 0x06,// P
valavanisalex 29:5bc91bd44c77 493 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
valavanisalex 29:5bc91bd44c77 494 0x7F, 0x09, 0x19, 0x29, 0x46,// R
valavanisalex 29:5bc91bd44c77 495 0x46, 0x49, 0x49, 0x49, 0x31,// S
valavanisalex 29:5bc91bd44c77 496 0x01, 0x01, 0x7F, 0x01, 0x01,// T
valavanisalex 29:5bc91bd44c77 497 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
valavanisalex 29:5bc91bd44c77 498 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
valavanisalex 29:5bc91bd44c77 499 0x7F, 0x20, 0x18, 0x20, 0x7F,// W
valavanisalex 29:5bc91bd44c77 500 0x63, 0x14, 0x08, 0x14, 0x63,// X
valavanisalex 29:5bc91bd44c77 501 0x03, 0x04, 0x78, 0x04, 0x03,// Y
valavanisalex 29:5bc91bd44c77 502 0x61, 0x51, 0x49, 0x45, 0x43,// Z
valavanisalex 29:5bc91bd44c77 503 0x00, 0x00, 0x7F, 0x41, 0x41,// [
valavanisalex 29:5bc91bd44c77 504 0x02, 0x04, 0x08, 0x10, 0x20,// "\"
valavanisalex 29:5bc91bd44c77 505 0x41, 0x41, 0x7F, 0x00, 0x00,// ]
valavanisalex 29:5bc91bd44c77 506 0x04, 0x02, 0x01, 0x02, 0x04,// ^
valavanisalex 29:5bc91bd44c77 507 0x40, 0x40, 0x40, 0x40, 0x40,// _
valavanisalex 29:5bc91bd44c77 508 0x00, 0x01, 0x02, 0x04, 0x00,// `
valavanisalex 29:5bc91bd44c77 509 0x20, 0x54, 0x54, 0x54, 0x78,// a
valavanisalex 29:5bc91bd44c77 510 0x7F, 0x48, 0x44, 0x44, 0x38,// b
valavanisalex 29:5bc91bd44c77 511 0x38, 0x44, 0x44, 0x44, 0x20,// c
valavanisalex 29:5bc91bd44c77 512 0x38, 0x44, 0x44, 0x48, 0x7F,// d
valavanisalex 29:5bc91bd44c77 513 0x38, 0x54, 0x54, 0x54, 0x18,// e
valavanisalex 29:5bc91bd44c77 514 0x08, 0x7E, 0x09, 0x01, 0x02,// f
valavanisalex 29:5bc91bd44c77 515 0x08, 0x14, 0x54, 0x54, 0x3C,// g
valavanisalex 29:5bc91bd44c77 516 0x7F, 0x08, 0x04, 0x04, 0x78,// h
valavanisalex 29:5bc91bd44c77 517 0x00, 0x44, 0x7D, 0x40, 0x00,// i
valavanisalex 29:5bc91bd44c77 518 0x20, 0x40, 0x44, 0x3D, 0x00,// j
valavanisalex 29:5bc91bd44c77 519 0x00, 0x7F, 0x10, 0x28, 0x44,// k
valavanisalex 29:5bc91bd44c77 520 0x00, 0x41, 0x7F, 0x40, 0x00,// l
valavanisalex 29:5bc91bd44c77 521 0x7C, 0x04, 0x18, 0x04, 0x78,// m
valavanisalex 29:5bc91bd44c77 522 0x7C, 0x08, 0x04, 0x04, 0x78,// n
valavanisalex 29:5bc91bd44c77 523 0x38, 0x44, 0x44, 0x44, 0x38,// o
valavanisalex 29:5bc91bd44c77 524 0x7C, 0x14, 0x14, 0x14, 0x08,// p
valavanisalex 29:5bc91bd44c77 525 0x08, 0x14, 0x14, 0x18, 0x7C,// q
valavanisalex 29:5bc91bd44c77 526 0x7C, 0x08, 0x04, 0x04, 0x08,// r
valavanisalex 29:5bc91bd44c77 527 0x48, 0x54, 0x54, 0x54, 0x20,// s
valavanisalex 29:5bc91bd44c77 528 0x04, 0x3F, 0x44, 0x40, 0x20,// t
valavanisalex 29:5bc91bd44c77 529 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
valavanisalex 29:5bc91bd44c77 530 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
valavanisalex 29:5bc91bd44c77 531 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
valavanisalex 29:5bc91bd44c77 532 0x44, 0x28, 0x10, 0x28, 0x44,// x
valavanisalex 29:5bc91bd44c77 533 0x0C, 0x50, 0x50, 0x50, 0x3C,// y
valavanisalex 29:5bc91bd44c77 534 0x44, 0x64, 0x54, 0x4C, 0x44,// z
valavanisalex 29:5bc91bd44c77 535 0x00, 0x08, 0x36, 0x41, 0x00,// {
valavanisalex 29:5bc91bd44c77 536 0x00, 0x00, 0x7F, 0x00, 0x00,// |
valavanisalex 29:5bc91bd44c77 537 0x00, 0x41, 0x36, 0x08, 0x00,// }
valavanisalex 29:5bc91bd44c77 538 0x08, 0x08, 0x2A, 0x1C, 0x08,// ->
valavanisalex 29:5bc91bd44c77 539 0x08, 0x1C, 0x2A, 0x08, 0x08 // <-
eencae 0:d563e74f0ae9 540 };
eencae 0:d563e74f0ae9 541
valavanisalex 29:5bc91bd44c77 542 #endif