pdc8544 confusion with Arduino code  ascii - Page 1
Forum section: electronics / beginners

author: omerkc1
author_rank: Newbie
timestamp: March 14, 2017, 05:59:18 am
content: Hello everyone!I've been trying to learn how to use the Nokia LCD with it's pdc8544 driver for the past few days.I'm trying to use it with an arduino.There's? a part of the example code online that i don't understand.#define PIN_SCE 7#define PIN_RESET 6#define PIN_DC 5#define PIN_SDIN 4#define PIN_SCLK 3#define LCD_C LOW#define LCD_D HIGH#define LCD_X 84#define LCD_Y 48static const byte ASCII[] ={{0x00, 0x00, 0x00, 0x00, 0x00} // 20,{0x00, 0x00, 0x5f, 0x00, 0x00} // 21 !,{0x00, 0x07, 0x00, 0x07, 0x00} // 22 ",{0x14, 0x7f, 0x14, 0x7f, 0x14} // 23 #,{0x24, 0x2a, 0x7f, 0x2a, 0x12} // 24 $,{0x23, 0x13, 0x08, 0x64, 0x62} // 25 %,{0x36, 0x49, 0x55, 0x22, 0x50} // 26 &,{0x00, 0x05, 0x03, 0x00, 0x00} // 27 ',{0x00, 0x1c, 0x22, 0x41, 0x00} // 28 (,{0x00, 0x41, 0x22, 0x1c, 0x00} // 29 ),{0x14, 0x08, 0x3e, 0x08, 0x14} // 2a *,{0x08, 0x08, 0x3e, 0x08, 0x08} // 2b +,{0x00, 0x50, 0x30, 0x00, 0x00} // 2c ,,{0x08, 0x08, 0x08, 0x08, 0x08} // 2d -,{0x00, 0x60, 0x60, 0x00, 0x00} // 2e .,{0x20, 0x10, 0x08, 0x04, 0x02} // 2f /,{0x3e, 0x51, 0x49, 0x45, 0x3e} // 30 0,{0x00, 0x42, 0x7f, 0x40, 0x00} // 31 1,{0x42, 0x61, 0x51, 0x49, 0x46} // 32 2,{0x21, 0x41, 0x45, 0x4b, 0x31} // 33 3,{0x18, 0x14, 0x12, 0x7f, 0x10} // 34 4,{0x27, 0x45, 0x45, 0x45, 0x39} // 35 5,{0x3c, 0x4a, 0x49, 0x49, 0x30} // 36 6,{0x01, 0x71, 0x09, 0x05, 0x03} // 37 7,{0x36, 0x49, 0x49, 0x49, 0x36} // 38 8,{0x06, 0x49, 0x49, 0x29, 0x1e} // 39 9,{0x00, 0x36, 0x36, 0x00, 0x00} // 3a :,{0x00, 0x56, 0x36, 0x00, 0x00} // 3b ;,{0x08, 0x14, 0x22, 0x41, 0x00} // 3c <,{0x14, 0x14, 0x14, 0x14, 0x14} // 3d =,{0x00, 0x41, 0x22, 0x14, 0x08} // 3e >,{0x02, 0x01, 0x51, 0x09, 0x06} // 3f ?,{0x32, 0x49, 0x79, 0x41, 0x3e} // 40 @,{0x7e, 0x11, 0x11, 0x11, 0x7e} // 41 A,{0x7f, 0x49, 0x49, 0x49, 0x36} // 42 B,{0x3e, 0x41, 0x41, 0x41, 0x22} // 43 C,{0x7f, 0x41, 0x41, 0x22, 0x1c} // 44 D,{0x7f, 0x49, 0x49, 0x49, 0x41} // 45 E,{0x7f, 0x09, 0x09, 0x09, 0x01} // 46 F,{0x3e, 0x41, 0x49, 0x49, 0x7a} // 47 G,{0x7f, 0x08, 0x08, 0x08, 0x7f} // 48 H,{0x00, 0x41, 0x7f, 0x41, 0x00} // 49 I,{0x20, 0x40, 0x41, 0x3f, 0x01} // 4a J,{0x7f, 0x08, 0x14, 0x22, 0x41} // 4b K,{0x7f, 0x40, 0x40, 0x40, 0x40} // 4c L,{0x7f, 0x02, 0x0c, 0x02, 0x7f} // 4d M,{0x7f, 0x04, 0x08, 0x10, 0x7f} // 4e N,{0x3e, 0x41, 0x41, 0x41, 0x3e} // 4f O,{0x7f, 0x09, 0x09, 0x09, 0x06} // 50 P,{0x3e, 0x41, 0x51, 0x21, 0x5e} // 51 Q,{0x7f, 0x09, 0x19, 0x29, 0x46} // 52 R,{0x46, 0x49, 0x49, 0x49, 0x31} // 53 S,{0x01, 0x01, 0x7f, 0x01, 0x01} // 54 T,{0x3f, 0x40, 0x40, 0x40, 0x3f} // 55 U,{0x1f, 0x20, 0x40, 0x20, 0x1f} // 56 V,{0x3f, 0x40, 0x38, 0x40, 0x3f} // 57 W,{0x63, 0x14, 0x08, 0x14, 0x63} // 58 X,{0x07, 0x08, 0x70, 0x08, 0x07} // 59 Y,{0x61, 0x51, 0x49, 0x45, 0x43} // 5a Z,{0x00, 0x7f, 0x41, 0x41, 0x00} // 5b [,{0x02, 0x04, 0x08, 0x10, 0x20} // 5c ¥,{0x00, 0x41, 0x41, 0x7f, 0x00} // 5d ],{0x04, 0x02, 0x01, 0x02, 0x04} // 5e ^,{0x40, 0x40, 0x40, 0x40, 0x40} // 5f _,{0x00, 0x01, 0x02, 0x04, 0x00} // 60 `,{0x20, 0x54, 0x54, 0x54, 0x78} // 61 a,{0x7f, 0x48, 0x44, 0x44, 0x38} // 62 b,{0x38, 0x44, 0x44, 0x44, 0x20} // 63 c,{0x38, 0x44, 0x44, 0x48, 0x7f} // 64 d,{0x38, 0x54, 0x54, 0x54, 0x18} // 65 e,{0x08, 0x7e, 0x09, 0x01, 0x02} // 66 f,{0x0c, 0x52, 0x52, 0x52, 0x3e} // 67 g,{0x7f, 0x08, 0x04, 0x04, 0x78} // 68 h,{0x00, 0x44, 0x7d, 0x40, 0x00} // 69 i,{0x20, 0x40, 0x44, 0x3d, 0x00} // 6a j,{0x7f, 0x10, 0x28, 0x44, 0x00} // 6b k,{0x00, 0x41, 0x7f, 0x40, 0x00} // 6c l,{0x7c, 0x04, 0x18, 0x04, 0x78} // 6d m,{0x7c, 0x08, 0x04, 0x04, 0x78} // 6e n,{0x38, 0x44, 0x44, 0x44, 0x38} // 6f o,{0x7c, 0x14, 0x14, 0x14, 0x08} // 70 p,{0x08, 0x14, 0x14, 0x18, 0x7c} // 71 q,{0x7c, 0x08, 0x04, 0x04, 0x08} // 72 r,{0x48, 0x54, 0x54, 0x54, 0x20} // 73 s,{0x04, 0x3f, 0x44, 0x40, 0x20} // 74 t,{0x3c, 0x40, 0x40, 0x20, 0x7c} // 75 u,{0x1c, 0x20, 0x40, 0x20, 0x1c} // 76 v,{0x3c, 0x40, 0x30, 0x40, 0x3c} // 77 w,{0x44, 0x28, 0x10, 0x28, 0x44} // 78 x,{0x0c, 0x50, 0x50, 0x50, 0x3c} // 79 y,{0x44, 0x64, 0x54, 0x4c, 0x44} // 7a z,{0x00, 0x08, 0x36, 0x41, 0x00} // 7b {,{0x00, 0x00, 0x7f, 0x00, 0x00} // 7c |,{0x00, 0x41, 0x36, 0x08, 0x00} // 7d },{0x10, 0x08, 0x08, 0x10, 0x08} // 7e ?,{0x78, 0x46, 0x41, 0x46, 0x78} // 7f ?};void LcdCharacter(char character){LcdWrite(LCD_D, 0x00);for (int index = 0; index < 5; index++){LcdWrite(LCD_D, ASCII[character - 0x20]);}LcdWrite(LCD_D, 0x00);}void LcdClear(void){for (int index = 0; index < LCD_X * LCD_Y / 8; index++){LcdWrite(LCD_D, 0x00);}}void LcdInitialise(void){pinMode(PIN_SCE, OUTPUT);pinMode(PIN_RESET, OUTPUT);pinMode(PIN_DC, OUTPUT);pinMode(PIN_SDIN, OUTPUT);pinMode(PIN_SCLK, OUTPUT);digitalWrite(PIN_RESET, LOW);digitalWrite(PIN_RESET, HIGH);LcdWrite(LCD_C, 0x21 ); // LCD Extended Commands.LcdWrite(LCD_C, 0xB1 ); // Set LCD Vop (Contrast).LcdWrite(LCD_C, 0x04 ); // Set Temp coefficent. //0x04LcdWrite(LCD_C, 0x14 ); // LCD bias mode 1:48. //0x13LcdWrite(LCD_C, 0x20 ); // LCD Basic CommandsLcdWrite(LCD_C, 0x0C ); // LCD in normal mode.}void LcdString(char *characters){while (*characters){LcdCharacter(*characters++);}}void LcdWrite(byte dc, byte data){digitalWrite(PIN_DC, dc);digitalWrite(PIN_SCE, LOW);shiftOut(PIN_SDIN, PIN_SCLK, MSBFIRST, data);digitalWrite(PIN_SCE, HIGH);}void setup(void){LcdInitialise();LcdClear();LcdString("Hello World!");}void loop(void){}In this code what does this part mean : ",{0x00, 0x07, 0x00, 0x07, 0x00} // 22 " "Like, are they defining individual pixels to write letters?Thank you

author: MrBungle
author_rank: Unknown
timestamp: March 14, 2017, 06:07:50 am
content: Quote from: omerkc1 on March 14, 2017, 05:59:18 amYes, that is exactly what it is. The pixels are addressed as per the below:Have a play with this:http://carlos-rodrigues.com/pcd8544/

author: omerkc1
author_rank: Newbie
timestamp: March 14, 2017, 08:39:05 am
content: Thank you so much!gosh, that webpage is amazing!Again, thanks! ^.^