CLCD 초기화

초기화에 대해 참조할 링크:
http://web.alfredstate.edu/weimandn/lcd/lcd_initialization/lcd_initialization_index.html

증말 웃기는 경우

kc0066.pdf

S6A0069.pdf

lcd.c

lcd.h

이건 HD44780 용인데 초기화가 다른 삼성 S6A0069 와 KC0066 LCD에 먹힌다
정작 삼성이 표기한 초기화 루틴은 안된다는거 ????
 링크 : http://www.microchip.com/forums/m122006.aspx

HY-1602H-501 // LMB1624AFC
// ----------------------------------------------------------------------------------

// Following is HD4480 controller

void LCDinit(void){//Initializes LCD{

LDP=0xFC; // PORTD ->23  LED output

LCP=0x07;   // High C port for ADC input : PORTC->012 output

LDDR=1<<LCD_D7|1<<LCD_D6|1<<LCD_D5|1<<LCD_D4;

LCDR=1<<LCD_E|1<<LCD_RW|1<<LCD_RS;

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

//LCDsendCommand(0b00101000); 4 bit dual line, font 5x7

  //LCDsendCommand(0b00001100); increment address, cursor shift off

// ------------------ Function set ------------

_delay_ms(50); // Change from 15 to 40ms - 작동안되면 시간 늘일것

LCP=1<<LCD_E|0<<LCD_RW|0<<LCD_RS;

SetHighNibble(0x30); // Try 1

Toggle_E();

_delay_ms(10);

SetHighNibble(0x30); // Try 2

Toggle_E();

_delay_ms(1);

SetHighNibble(0x30); // Try 3

Toggle_E();

_delay_ms(1);

SetHighNibble(0x20); // 4 bit mode

Toggle_E();

_delay_ms(1);

LCDsendCommand(0B00101000); // 4 bit dual line, font 5x7

LCDsendCommand(0B00001100); // Dsplay on/off

LCDsendCommand(0B00000001); // Display clear

_delay_ms(2);

LCDsendCommand(0B00000110); // Etry mode

}

================== 이것도 동작은 되긴한다 ===========================================

void LCDinit(void){//Initializes LCD{

_delay_ms(40); // Change from 15 to 40ms

LDP=0xFC; // PORTD ->23  LED output

LCP=0x07;   // High C port for ADC input : PORTC->012 output

LDDR=1<<LCD_D7|1<<LCD_D6|1<<LCD_D5|1<<LCD_D4;

LCDR=1<<LCD_E|1<<LCD_RW|1<<LCD_RS;

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

//LCDsendCommand(0b00101000); 4 bit dual line, font 5x7

  //LCDsendCommand(0b00001100); increment address, cursor shift off

// ------------------ Function set ------------

LCP=1<<LCD_E|0<<LCD_RW|0<<LCD_RS; // Try 1

SetHighNibble(0x30);

Toggle_E();

_delay_ms(5);

LCP=1<<LCD_E|0<<LCD_RW|0<<LCD_RS; // Try 2

SetHighNibble(0x30);

Toggle_E();

_delay_ms(1);

LCP=1<<LCD_E|0<<LCD_RW|0<<LCD_RS; // Try 3

SetHighNibble(0x30);

Toggle_E();

_delay_ms(1);

LCP=1<<LCD_E|0<<LCD_RW|0<<LCD_RS; // Set to 4 bit mode

SetHighNibble(0x20);

Toggle_E();

_delay_ms(1);

LCDsendCommand(0B00101000); // 4 bit dual line, font 5x7

LCDsendCommand(0B00001100); // Dsplay on/off

LCDsendCommand(0B00000001); // Display clear

_delay_ms(2);

LCDsendCommand(0B00000110); // Etry mode

}  
===================

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

void Toggle_E(void){

LCP|=1<<LCD_E;

_delay_ms(1);

LCP&=~(1<<LCD_E);

_delay_ms(1);

}

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

void SetLowNibble(unsigned char ch){

   // output high nibble first

    LDP &= ~_BV(LCD_D7);

    LDP &= ~_BV(LCD_D6);

    LDP &= ~_BV(LCD_D5);

    LDP &= ~_BV(LCD_D4);

if(ch & 0x08) LDP |= _BV(LCD_D7);

if(ch & 0x04) LDP |= _BV(LCD_D6);

if(ch & 0x02) LDP |= _BV(LCD_D5);

if(ch & 0x01) LDP |= _BV(LCD_D4);

}

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

void SetHighNibble(unsigned char ch){

    // output high nibble first

    LDP &= ~_BV(LCD_D7);

    LDP &= ~_BV(LCD_D6);

    LDP &= ~_BV(LCD_D5);

    LDP &= ~_BV(LCD_D4);

if(ch & 0x80) LDP |= _BV(LCD_D7);

if(ch & 0x40) LDP |= _BV(LCD_D6);

if(ch & 0x20) LDP |= _BV(LCD_D5);

if(ch & 0x10) LDP |= _BV(LCD_D4);

}

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

void LCDsendChar(unsigned char ch){ //Sends Char to LCD

    // configure data pins as output

    LDDR |= _BV(LCD_D4);

    LDDR |= _BV(LCD_D5);

    LDDR |= _BV(LCD_D6);

    LDDR |= _BV(LCD_D7);

LCP|=1<<LCD_RS;

LCP&=~(1<<LCD_RW);

//4 bit part

SetHighNibble(ch);

Toggle_E();

// LCP&=~(1<<LCD_RS);

_delay_ms(1);

SetLowNibble(ch);

// LCP|=1<<LCD_RS;

Toggle_E();

// LCP&=~(1<<LCD_RS);

_delay_ms(1);

}

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

void LCDsendCommand(unsigned char cmd){ //Sends Command to LCD

    // configure data pins as output

    LDDR |= _BV(LCD_D4);

    LDDR |= _BV(LCD_D5);

    LDDR |= _BV(LCD_D6);

    LDDR |= _BV(LCD_D7);

//LCP&=~_BV(LCD_RS); // Set RS low for Instruction

LCP&=~(1<<LCD_RS); // Set RS low for Instruction

LCP&=~(1<<LCD_RW);

//4 bit part

SetHighNibble(cmd);

Toggle_E();

LCP&=~(1<<LCD_RS); // Set RS low for Instruction

SetLowNibble(cmd);

Toggle_E();

}