lcd.rar_interface

#define D_C PORTD.F5 #define SCE PORTD.F4 #define RES PORTD.F3 #define SCK PORTD.F7 #define SDI PORTD.F6 #define pi 3.14159 // Constant pi. #define num_of_points 64 // Number of points to plot in a graph. void initlcd(void); // Initializes the LCD. void sendcmd(char); // Writes a command. void senddata(char); // Writes data to DDRAM to illuminate the pixels. void cleanram(void); // Erase the DDRAM contents. void gotoxy(char,char); // Position cursor to x,y. void sendchar(char); // Write one character. void sendstr(const char *); // Writes a string of characters. void sendpack(char); const char table[480] = { 0x00,0x00,0x00,0x00,0x00, // 20 space ASCII table for NOKIA LCD: 96 rows * 5 bytes= 480 bytes 0x00,0x00,0x5f,0x00,0x00, // 21 ! Note that this is the same set of codes for character you 0x00,0x07,0x00,0x07,0x00, // 22 " would find on a HD44780 based character LCD. :) 0x14,0x7f,0x14,0x7f,0x14, // 23 # Also, given the size of the LCD (84 pixels by 48 pixels), 0x24,0x2a,0x7f,0x2a,0x12, // 24 $ the maximum number of characters per row is only 14. :) 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 Yen Currency Sign 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 Right Arrow -> 0x78,0x46,0x41,0x46,0x78}; // 7f Left Arrow <- void main() { int i; char a; TRISD=0x00; TRISB=0x00; PORTB.F7=0; PORTD=0x00; initlcd(); while(1) {gotoxy(12,15); sendstr("Kamal"); if(PORTB.F7==0) PORTB.F7=1; else PORTB.F7=0; Delay_ms(1000); } // gotoxy(0,0); // for(i=0;i<480;i++) // {a=table[i]; // senddata(a);} } void initlcd() { RES =1; SCE =1; RES =0; Delay_ms(100); RES=1; /// come out of lcd state sendcmd(0x21); sendcmd(0xC2); sendcmd(0x13); sendcmd(0x20); sendcmd(0x09); if (PORTB.F6==1) PORTB.F6=0; else PORTB.F6=1; cleanram(); PORTB.F5=1; sendcmd(0x08); sendcmd(0x0C); gotoxy(0,0); } void sendcmd(char x) { D_C= 0; SCE=0; sendpack(x); SCE=1; //deselect the display return; } void senddata(char x) { D_C= 1; SCE=0; sendpack(x); SCE=1; //deselect the display } void cleanram() {int i; gotoxy(0,0); for(i=504;i>0;i--) senddata(0x00); } void gotoxy( char x, char y) { sendcmd(0x40|(y&0x07)); sendcmd(0x80|(x&0x7f)); } void sendchar(char x) { int a,b; char c; if((x<0x20)||(x>0x7f)) return; a=((5*x)-160); for(b=5;b>0;b--) { c=table[a]; senddata(c); a++; } senddata(0x00); } void sendstr(const char *s) { while(*s) sendchar(*s++); } void sendpack(char x) { int i; for(i=0;i<8;i++) { SCK=0; if ((x&0x80)==0x80) 0 SDI=1; else SDI=0; SCK=1; x=x<<1; } }