윤덕용 교수의 한글 GLCD 라이브러리 수정 - 그래픽 기능 추가

윤덕용 교수의 한글 GLCD 라이브러리 수정 - 그래픽 기능 추가
TFT LCD에는 있는 기능인데 GLCD 라이브러리에는 없어 수정함
..
수정할 곳..

맨위에 아래 수정 및 추가

/* -------------------------------------------------------------------------*/

/*   Graphic LCD Module : Hyundai LCD,HG12605NY-LY,128x64 dot,LED backlight */

/* -------------------------------------------------------------------------*/

/* LCD_DATABUS(0x2000) : D0-D7 = DB0-DB7 (7-14, data bus) */

/* LCD_CONTROL(0x2100) :    D3 = R/-W    (5, read/write) */

/*                          D4 = D/-I    (4, data/instruction)       */

/*                          D5 = E       (6, enable)       */

/*                          D6 = CS1     (15, chip select 1)       */

/*                          D7 = CS2     (16, chip select 2)       */

#define LCD_DATABUS PORTD // LCD/GLCD data

#define LCD_CONTROL PORTF // LCD/GLCD control signal

#define LCD_DATA_PIN PIND // Added to read data

#define LCD_DATA_DIR DDRD

#define LCD_CTRL_DIR DDRF

const unsigned char color = 1; // Added for Graphic Routin

 
GLCD 데이터 읽기 - RW 핀 수정해야 함 (원래는 GND에 묶여 있다)
// ----------------------------------------------------------------------------

unsigned char GLCD_data_RD(uint8_t cols) // Read a data

{ 

unsigned char data=0, signal;

if(cols < 64) // if y <= 7, CS1

signal = 0x40;

else // if y >= 8, CS2

signal = 0x80;

LCD_CONTROL = (signal & 0xC0)|0x10; // RS = 1 => PD4

asm volatile(" PUSH  R0 ");                 // delay for 500 ns

asm volatile(" POP   R0 ");

asm volatile(" PUSH  R0 ");

asm volatile(" POP   R0 ");

LCD_CONTROL |= 0x08; // Set Read; RW = PD3

LCD_DATA_DIR = 0x00;

LCD_DATABUS = 0x00;

LCD_CONTROL |= (signal & 0xC0)|0x30; // E = 1

asm volatile(" PUSH  R0 ");                 // delay for 500 ns

asm volatile(" POP   R0 ");

asm volatile(" PUSH  R0 ");

asm volatile(" POP   R0 ");

data = LCD_DATA_PIN;

LCD_CONTROL = (signal & 0xC0)|0x10;         // E = 0

asm volatile(" NOP      ");

LCD_CONTROL &= ~0x08; // Set Write ; RW = PD3

LCD_DATA_DIR = 0xFF;

LCD_DATABUS = 0x00;

LCD_CONTROL = 0x00; // clear all control signals

Delay_us(10);                               // wait GLCD busy

return data;

}

픽셀 그리기

// ----------------------------------------------------------------------------

void GLCD_SetPixel(unsigned char cols, unsigned char rows, unsigned char color){

unsigned char temp=0, signal;

if(cols < 64) // if y <= 7, CS1

signal = 0x40;

else // if y >= 8, CS2

signal = 0x80;

GLCD_move_xy(cols, rows);

GLCD_data_RD(cols);

GLCD_move_xy(cols, rows);

temp = GLCD_data_RD(cols);

temp |= _BV(rows%8);

GLCD_move_xy(cols, rows);

GLCD_data(signal, temp);

} 

픽셀단위 이동 (윤교수님 라이브러리는 글자 단위 이동 : 8비트)

// ----------------------------------------------------------------------------

void GLCD_move_xy(unsigned char cols, unsigned char rows){

unsigned char signal;

if((cols/8) <= 7) // if y <= 7, CS1

signal = 0x40;

else // if y >= 8, CS2

signal = 0x80;

GLCD_command(signal, 0xB8 + (rows/8));

if(cols < 64) GLCD_command(signal,0x40 + cols);

else GLCD_command(signal,0x40 + (cols - 64));

}

그리고 기타 선 / 원 / 박스 그리기 기능 -- 인터넷에서 주워 왔음

// ----------------------------------------------------------------------------

void GLCD_Rectangle(

unsigned char x, unsigned char y, unsigned char b, unsigned char a)

{

unsigned char j; // zmienna pomocnicza

// rysowanie linii pionowych (boki)

for (j = 0; j < a; j++){

GLCD_SetPixel(x, y + j, color);

GLCD_SetPixel(x + b - 1, y + j, color);

}

// rysowanie linii poziomych (podstawy)

for (j = 0; j < b; j++){

GLCD_SetPixel(x + j, y, color);

GLCD_SetPixel(x + j, y + a - 1, color);

}

}

// ----------------------------------------------------------------------------

void GLCD_Circle(unsigned char cx, unsigned char cy ,unsigned char radius){

int x, y, xchange, ychange, radiusError;

x = radius;

y = 0;

xchange = 1 - 2 * radius;

ychange = 1;

radiusError = 0;

while(x >= y){

GLCD_SetPixel(cx+x, cy+y, color); 

GLCD_SetPixel(cx-x, cy+y, color); 

GLCD_SetPixel(cx-x, cy-y, color);

GLCD_SetPixel(cx+x, cy-y, color); 

GLCD_SetPixel(cx+y, cy+x, color); 

GLCD_SetPixel(cx-y, cy+x, color); 

GLCD_SetPixel(cx-y, cy-x, color); 

GLCD_SetPixel(cx+y, cy-x, color); 

y++;

radiusError += ychange;

ychange += 2;

if ( 2*radiusError + xchange > 0 ){

x--;

radiusError += xchange;

xchange += 2;

}

}

}

// ----------------------------------------------------------------------------

void GLCD_Line(unsigned int X1,unsigned int Y1,unsigned int X2,unsigned int Y2)

{

int CurrentX, CurrentY, Xinc, Yinc, 

Dx, Dy, TwoDx, TwoDy, 

TwoDxAccumulatedError, TwoDyAccumulatedError;

Dx = (X2-X1); // obliczenie sk쿪dowej poziomej

Dy = (Y2-Y1); // obliczenie sk쿪dowej pionowej

TwoDx = Dx + Dx; // podwojona sk쿪dowa pozioma

TwoDy = Dy + Dy; // podwojona sk쿪dowa pionowa

CurrentX = X1; // zaczynamy od X1

CurrentY = Y1; // oraz Y1

Xinc = 1; // ustalamy krok zwi?szania pozycji w poziomie 

Yinc = 1; // ustalamy krok zwi?szania pozycji w pionie

if(Dx < 0){

Xinc = -1; // to b?ziemy si?"cofa? (krok ujemny)

Dx = -Dx;  // zmieniamy znak sk쿪dowej na dodatni

TwoDx = -TwoDx; // jak r?nie?podwojonej sk쿪dowej

}

if (Dy < 0){

Yinc = -1; // to b?ziemy si?"cofa? (krok ujemny)

Dy = -Dy; // zmieniamy znak sk쿪dowej na dodatki

TwoDy = -TwoDy; // jak r?niez podwojonej sk쿪dowej

}

GLCD_SetPixel(X1,Y1, color); 

if((Dx != 0) || (Dy != 0)){

if (Dy <= Dx){ 

TwoDxAccumulatedError = 0; // zerujemy zmienn?

do{

CurrentX += Xinc; // do aktualnej pozycji dodajemy krok 

TwoDxAccumulatedError += TwoDy; 

if(TwoDxAccumulatedError > Dx){

CurrentY += Yinc; // zwi?szamy aktualn?pozycj?w pionie

TwoDxAccumulatedError -= TwoDx; // i odejmujemy TwoDx

}

GLCD_SetPixel(CurrentX,CurrentY, color);

}while (CurrentX != X2); 

}else{

TwoDyAccumulatedError = 0; 

do{

CurrentY += Yinc; 

TwoDyAccumulatedError += TwoDx;

if(TwoDyAccumulatedError>Dy){

CurrentX += Xinc;

TwoDyAccumulatedError -= TwoDy;

}

GLCD_SetPixel(CurrentX,CurrentY, color); 

}while (CurrentY != Y2);

}

}

}

// ----------------------------------------------------------------------------