/// Procedura inicjalizacji kontrolera HD44780.
void LCD_init(void)
{
unsigned char i;
LCD_DB4_DIR |= LCD_DB4; // Konfiguracja kierunku pracy wyprowadzeń
LCD_DB5_DIR |= LCD_DB5; //
LCD_DB6_DIR |= LCD_DB6; //
LCD_DB7_DIR |= LCD_DB7; //
LCD_E_DIR |= LCD_E; //
LCD_RS_DIR |= LCD_RS; //
_delay_ms(15); // oczekiwanie na ustalibizowanie się napiecia zasilajacego
LCD_RS_PORT &= ~LCD_RS; // wyzerowanie linii RS
LCD_E_PORT &= ~LCD_E; // wyzerowanie linii E
for(i = 0; i < 3; i++) // trzykrotne powtórzenie bloku instrukcji
{
LCD_E_PORT |= LCD_E; // E = 1
_LCD_OutNibble(0x03); // tryb 8-bitowy
LCD_E_PORT &= ~LCD_E; // E = 0
_delay_ms(5); // czekaj 5ms
}
LCD_E_PORT |= LCD_E; // E = 1
_LCD_OutNibble(0x02); // tryb 4-bitowy
LCD_E_PORT &= ~LCD_E; // E = 0
_delay_ms(1); // czekaj 1ms
LCD_writeCommand(HD44780_FUNCTION_SET | HD44780_FONT5x7 | HD44780_TWO_LINE | HD44780_4_BIT); // interfejs 4-bity, 2-linie, znak 5x7
LCD_writeCommand(HD44780_DISPLAY_ONOFF | HD44780_DISPLAY_OFF); // wyłączenie wyswietlacza
LCD_writeCommand(HD44780_CLEAR); // czyszczenie zawartosći pamieci DDRAM
_delay_ms(2);
LCD_writeCommand(HD44780_ENTRY_MODE | HD44780_EM_SHIFT_CURSOR | HD44780_EM_INCREMENT);// inkrementaja adresu i przesuwanie kursora
LCD_writeCommand(HD44780_DISPLAY_ONOFF | HD44780_DISPLAY_ON | HD44780_CURSOR_OFF | HD44780_CURSOR_NOBLINK); // włącz LCD, bez kursora i mrugania
}
/*--------------------------------------------------------------------------------------------------
Name : LCD_gotoXY
Description : Sets cursor location to xy location corresponding to basic font size.
Argument(s) : x - range: 0 to 84
y -> range: 0 to 5
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LCD_gotoXY ( unsigned char x, unsigned char y )
{
LCD_writeCommand (0x80 | x); //column
LCD_writeCommand (0x40 | y); //row
cursor_x = x;
cursor_y = y;
}
void LCD_goto(uint8_t x, uint8_t y) {
LCD_writeCommand(0x80 | x); //column
LCD_writeCommand(0x40 | y); //row
cursor_row = y;
cursor_col = x;
}
/*--------------------------------------------------------------------------------------------------
Name : LCD_gotoXY
Description : Sets cursor location to xy location corresponding to basic font size.
Argument(s) : x - range: 0 to 84
y -> range: 0 to 6
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LCD_gotoXY ( unsigned char x, unsigned char y )
{
//LCD_writeCommand (0x20);
LCD_writeCommand (0x80 | x); //column
LCD_writeCommand (0x40 | y); //row
cursor_row = y;
cursor_col = x; //+ 84*y;
}
/*
*------------------------------------------------------------------------------
* void InitializeLcd(void)
*
* Summary : Initialize LCD and setup LCD task to run.
*
* Input : None
*
* Output : None
*
*------------------------------------------------------------------------------
*/
void LCD_init(void)
{
// Initialize LCD hardware
InitLcd();
// Clear the display at startup
LCD_writeCommand(DISPLAY_CLEAR);
lcd.NOofChar = 0;
}
/*--------------------------------------------------------------------------------------------------
Name : LCD_init
Description : LCD controller initialization.
Argument(s) : None.
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LCD_init ( void )
{
DDRB |= (1<<PB0) | (1<<PB1) | (1<<PB2);
CLEAR_RST_PIN; //reset LCD
_delay_ms(2);
CLEAR_SCE_PIN; //Enable LCD
_delay_ms(2);
SET_RST_PIN;
SET_SCE_PIN; //disable LCD
LCD_writeCommand( 0x21 ); // LCD Extended Commands.
LCD_writeCommand( 0x80 | 0x30); // Set LCD Vop (Contrast).
LCD_writeCommand( 0x04 ); // Set Temp coefficent.
LCD_writeCommand( 0x13 ); // LCD bias mode 1:48.
LCD_writeCommand( 0x20 ); // LCD Standard Commands, Horizontal addressing mode.
LCD_writeCommand( 0x09 ); // all display segments on
_delay_ms(500);
LCD_writeCommand( 0x0c ); // LCD in normal mode.
LCD_clear();
_delay_ms(500);
}
/*
*------------------------------------------------------------------------------
* void UpdateLcdTask(void)
*
* Summary : Copies the contents of the local LCDText[] array into the
* LCD's internal display buffer. Null terminators in
* LCDText[] terminate the current line, so strings may be
* printed directly to LCDText[].
*
* Input : None
*
* Output : None
*
*------------------------------------------------------------------------------
*/
void writetoLCD(UINT8 *buff)
{
UINT8 i;
LCD_writeCommand(DISPLAY_CLEAR);
// Output first line
for(i = 0; i < DISPLAY_MAX_COLUMNS_PER_ROW; i++)
{
lcd.buff[0][i]= *buff;
*buff++;
}
LCD_writeCommand(DISPLAY_DPY_2ND_LINE);
for(i = 0; i < DISPLAY_MAX_COLUMNS_PER_ROW; i++)
{
lcd.buff[0][i]= *buff;
*buff++;
}
}
void setColumn(uint8_t col)
{
if(col > LCD_MAX_WIDTH)
col = 0;
uint8_t lsb = col & 0x0F;
uint8_t msb = (col & 0xF0) >> 4;
msb |= 0x10;
uint8_t cmd[] = {msb,lsb};
LCD_writeCommand(cmd,2);
}
void scrollLines(uint8_t lines)
{
scrolled_lines = scrolled_lines + lines;
lines = 64 - scrolled_lines%64;
lines |= BIT6;
lines &= ~BIT7;
uint8_t cmd[] = {lines};
LCD_writeCommand(cmd,1);
}
void LCD_putChar(UINT8 data)
{
UINT8 i;
if(data == lcd.bckspc)
{
if(lcd.NOofChar == 0)
{
return;
}
if(lcd.NOofChar == 16)
{
LCD_writeCommand(DISPLAY_DPY_1ST_LINE);
for(i=0;i<16;i++)
LCD_writeCommand(DISPLAY_SHIFT_RIGHT_CUR);
}
LCD_writeCommand(DISPLAY_SHIFT_LEFT_CUR);
LCD_writeData(' ');
LCD_writeCommand(DISPLAY_SHIFT_LEFT_CUR);
lcd.NOofChar--;
return;
}
if(lcd.NOofChar == DISPLAY_MAX_COLUMNS_PER_ROW)
LCD_writeCommand(DISPLAY_DPY_2ND_LINE);
else if(lcd.NOofChar >= DISPLAY_MAX_CHARS)
{
lcd.NOofChar = 0;
LCD_writeCommand(DISPLAY_RETURN_HOME);
}
LCD_writeData(data);
lcd.NOofChar++;
}
void LCD_init(void) {
SPI_DDR |= (1 << DC) | (1 << SCE) | (1 << RST) | (1 << SCK) | (1 << MOSI);
SET_RST_PIN;
SPCR = 0x50; //setup SPI
TIMER_delay_ms(100);
CLEAR_SCE_PIN; //Enable LCD
CLEAR_RST_PIN; //reset LCD
TIMER_delay_ms(100);
SET_RST_PIN;
SET_SCE_PIN; //disable LCD
LCD_writeCommand(0x21); // LCD Extended Commands.
LCD_writeCommand(0xE0); // Set LCD Vop (Contrast).
LCD_writeCommand(0x04); // Set Temp coefficent.
LCD_writeCommand(0x13); // LCD bias mode 1:48.
LCD_writeCommand(0x20); // LCD Standard Commands, Horizontal addressing mode.
LCD_writeCommand(0x0c); // LCD in normal mode.
LCD_clear();
}
void LCD_update( void )
{
int i,j;
#ifdef LCD_NO_SKIP_UPDATE
if(1)
#else
if(LCD.update_rows) //if any rows to update
#endif
{
for(i=0; i<HW_ROWS; i++)
{
#ifdef LCD_FORCE_TOTAL_UPDATE
if(1)
#else
if(LCD.update_rows & (1<<i))
#endif
{
#ifdef LCD_UPDATE_DEBUG
bit_flip(lcd_update_toggler,1<<i);
#endif
LCD_writeCommand (0x80); //column
LCD_writeCommand (0x40|(HW_ROWS-1-i)); //row
for(j=HW_COLUMNS; j>0; j--)
{
#ifdef LCD_UPDATE_DEBUG
if(lcd_update_toggler&(1<<i))
LCD_writeData(~lcd_buffer[i][j-1]);
else
#endif
LCD_writeData(lcd_buffer[i][j-1]);
}
}
}
LCD.update_rows=0;
LCD_gotoXY (0,0); //bring the XY position back to (0,0)
}
}
/*
*------------------------------------------------------------------------------
* void InitLcd(void)
*
* Summary : Initialize the LCD-Controller HD44780,
* 4-bit data bus; 2 Rows; 5x7 Dot.
*
* Input : None
*
* Output : None
* Note : 1/20 MHz = 0.00000005 sec = 0.05us x = 50uc
*------------------------------------------------------------------------------
*/
void InitLcd(void)
{
INT8 retValue;
dataPortOut();
// Wait the required time for the LCD to reset
DelayMs(40);
// FUNC. SET: interface is 8 bit long
rawWriteCommand8ToLcd(0x30);
DelayMs(10); // Wait 10ms
// FUNC. SET: interface is 8 bit long
rawWriteCommand8ToLcd(0x30);
DelayMs(10); // Wait 10ms
// FUNC. SET: interface is 8 bit long
rawWriteCommand8ToLcd(0x30);
DelayMs(10); // Wait 10ms
// FUNC.SET:interface is 4 bit long
rawWriteCommand8ToLcd(0x20);
DelayMs(10); // Wait 10ms
// FUNC.SET:interface is 4 bit long 0x 28
LCD_writeCommand(0x28);
retValue = busyLcd ();
// Check if Display is present
if(retValue == 0)
{
//Display ON, Cursor on 0x0C
LCD_writeCommand(0x0F);
// Display Clear 0x01
LCD_writeCommand(0x01);
// Entry Mode Set 0x04
LCD_writeCommand(0x04);
// Entry Mode Set 0x06
LCD_writeCommand(0x06);
}
return;
}
void setPage(uint8_t page)
{
//resto 1 para indexar de 0 a 7
//resto el valor original de page porque el LCD considera la de abajo como pag 0 y yo quiero la de arriba
page = (LCD_MAX_PAGES-1) - page;
//máscara según la especificación del datasheet
page |= BIT7 | BIT5 | BIT4;
page &= ~BIT6;
//Mando el comando al LCD
uint8_t cmd[] = {page};
LCD_writeCommand(cmd,1);
}
void LCD_init(void)
{
// Port initialization for LCD operation
CD_RST_DIR |= RST;
// Reset is active low
CD_RST_OUT &= ~RST;
// Reset is active low
CD_RST_OUT |= RST;
// Chip select for LCD
CS_BACKLT_DIR |= CS;
// CS is active low
CS_BACKLT_OUT &= ~CS;
// Command/Data for LCD
CD_RST_DIR |= CD;
// CD Low for command
CD_RST_OUT &= ~CD;
// P4.1 option select SIMO
SPI_SEL |= SPI_SIMO;
SPI_DIR |= SPI_SIMO;
// P4.3 option select CLK
SPI_SEL |= SPI_CLK;
SPI_DIR |= SPI_CLK;
// Initialize USCI_B1 for SPI Master operation
// Put state machine in reset
UCB1CTL1 |= UCSWRST;
//3-pin, 8-bit SPI master
UCB1CTL0 = UCCKPH | UCMSB | UCMST | UCMODE_0 | UCSYNC;
// Clock phase - data captured first edge, change second edge
// MSB
// Use SMCLK, keep RESET
UCB1CTL1 = UCSSEL_2 | UCSWRST;
UCB1BR0 = 0x02;
UCB1BR1 = 0;
// Release USCI state machine
UCB1CTL1 &= ~UCSWRST;
UCB1IFG &= ~UCRXIFG;
LCD_writeCommand(LCD_initMacro, n_init_commands);
// Deselect chip
CS_BACKLT_OUT |= CS;
}
/*--------------------------------------------------------------------------------------------------
Name : LCD_init
Description : LCD controller initialization.
Argument(s) : None.
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LCD_init ( void )
{
SET_RST_PIN;
SET_SCE_PIN;
CLEAR_RST_PIN;
delay_ms(100);
SET_RST_PIN;
LCD_writeCommand( 0x21 ); // LCD Extended Commands.
//LCD_writeCommand( 0x04 ); // Set Temp coefficent.
LCD_writeCommand( 0x13 ); // LCD bias mode 1:48.
LCD_writeCommand( 0xC2 ); // Set LCD Vop (Contrast).
LCD_writeCommand( 0x20 ); // LCD Standard Commands, Horizontal addressing mode.
LCD_writeCommand( 0x09 ); // all display segments on
delay_ms(1);
LCD_clear();
LCD_writeCommand( 0x08 ); //blank
LCD_writeCommand( 0x0c ); //normal operation
LCD_gotoXY(0,0);
}
/*--------------------------------------------------------------------------------------------------
Name : LCD_init
Description : LCD controller initialization.
Argument(s) : None.
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LCD_init ( void )
{
DDRD |= LCD_BACKLIGHT_PIN | LCD_SS_PIN | LCD_DC_PIN_IO | LCD_RST_PIN_IO;//sets LCD pins as outputs
delay_ms(100);
CLEAR_SCE_PIN; //Enable LCD
CLEAR_RST_PIN; //reset LCD
delay_ms(100);
SET_RST_PIN;
SET_SCE_PIN; //disable LCD
LCD_writeCommand( 0x21 ); // LCD Extended Commands.
LCD_writeCommand( 0xC8 ); // Set LCD Vop (Contrast).
LCD_writeCommand( 0x06 ); // Set Temp coefficent.
LCD_writeCommand( 0x13 ); // LCD bias mode 1:48.
LCD_writeCommand( 0x20 ); // LCD Standard Commands, Horizontal addressing mode.
LCD_writeCommand( 0x0c ); // LCD in normal mode.
LCD_clear();
}
/// Funkcja ustawienia współrzędnych ekranowych
void LCD_goto(unsigned char x, unsigned char y)
{
LCD_writeCommand(HD44780_DDRAM_SET | (x + (0x40 * y)));
}
/// Funkcja przywrócenia początkowych współrzędnych wyświetlacza.
void LCD_home(void)
{
LCD_writeCommand(HD44780_HOME);
_delay_ms(2);
}
void LCD_clear(void)
{
LCD_writeCommand(DISPLAY_CLEAR);
lcd.NOofChar = 0;
}
void LCD_setAllPixels(int status)
{
uint8_t s = (uint8_t) status;
uint8_t cmd[] = {SET_ALL_PIXEL_ON + s};
LCD_writeCommand(cmd, 1);
}
/// Funkcja czyszczenia ekranu wyświetlacza.
void LCD_clear(void)
{
LCD_writeCommand(HD44780_CLEAR);
_delay_ms(2);
}
