void LCDInit(uint8_t style)
{
/*****************************************************************
This function Initializes the lcd module
must be called before calling lcd related functions
Arguments:
style = LS_BLINK,LS_ULINE(can be "OR"ed for combination)
LS_BLINK : The cursor is blinking type
LS_ULINE : Cursor is "underline" type else "block" type
LS_NONE : No visible cursor
*****************************************************************/
//After power on Wait for LCD to Initialize
__delay_ms(30);
//Set IO Ports
LCD_DATA_TRIS&=(~(0x0F<<LCD_DATA_POS)); //Output
LCD_E_TRIS=0; //Output
LCD_RS_TRIS=0; //Output
LCD_RW_TRIS=0; //Output
LCD_DATA_PORT&=(~(0x0F<<LCD_DATA_POS));//Clear data port
CLEAR_E();
CLEAR_RW();
CLEAR_RS();
//Set 4-bit mode
__delay_us(0.5); //tAS
SET_E();
LCD_DATA_PORT|=((0b00000010)<<LCD_DATA_POS); //[B] To transfer 0b00100000 i was using LCD_DATA_PORT|=0b00100000
__delay_us(1);
CLEAR_E();
__delay_us(1);
//Wait for LCD to execute the Functionset Command
LCDBusyLoop(); //[B] Forgot this delay
//Now the LCD is in 4-bit mode
LCDCmd(0b00101000); //function set 4-bit,2 line 5x7 dot format
LCDCmd(0b00001100|style); //Display On
/* Custom Char */
LCDCmd(0b01000000);
uint8_t __i;
for(__i=0;__i<sizeof(__cgram);__i++)
LCDData(__cgram[__i]);
}
void LCDByte(uint8_t c,uint8_t isdata)
{
//Sends a byte to the LCD in 4bit mode
//cmd=0 for data
//cmd=1 for command
//NOTE: THIS FUNCTION RETURS ONLY WHEN LCD HAS PROCESSED THE COMMAND
uint8_t hn,ln; //Nibbles
uint8_t temp;
hn=c>>4;
ln=(c & 0x0F);
if(isdata==0)
CLEAR_RS();
else
SET_RS();
_delay_us(0.500); //tAS
SET_E();
//Send high nibble
temp=(LCD_DATA_PORT & (~(0X0F<<LCD_DATA_POS)))|((hn<<LCD_DATA_POS));
LCD_DATA_PORT=temp;
_delay_us(1); //tEH
//Now data lines are stable pull E low for transmission
CLEAR_E();
_delay_us(1);
//Send the lower nibble
SET_E();
temp=(LCD_DATA_PORT & (~(0X0F<<LCD_DATA_POS)))|((ln<<LCD_DATA_POS));
LCD_DATA_PORT=temp;
_delay_us(1); //tEH
//SEND
CLEAR_E();
_delay_us(1); //tEL
LCDBusyLoop();
}
void LCDInit(uint8_t style)
{
/*****************************************************************
This function Initializes the lcd module
must be called before calling lcd related functions
Arguments:
style = LS_BLINK,LS_ULINE(can be "OR"ed for combination)
LS_BLINK :The cursor is blinking type
LS_ULINE :Cursor is "underline" type else "block" type
*****************************************************************/
//After power on Wait for LCD to Initialize
_delay_ms(30);
//Set IO Ports
LCD_DATA_DDR|=(0x0F<<LCD_DATA_POS);
LCD_E_DDR|=(1<<LCD_E_POS);
LCD_RS_DDR|=(1<<LCD_RS_POS);
LCD_RW_DDR|=(1<<LCD_RW_POS);
LCD_DATA_PORT&=(~(0x0F<<LCD_DATA_POS));
CLEAR_E();
CLEAR_RW();
CLEAR_RS();
//Set 4-bit mode
_delay_us(0.3); //tAS
SET_E();
LCD_DATA_PORT|=((0b00000010)<<LCD_DATA_POS); //[B] To transfer 0b00100000 i was using LCD_DATA_PORT|=0b00100000
_delay_us(1);
CLEAR_E();
_delay_us(1);
//Wait for LCD to execute the Functionset Command
LCDBusyLoop(); //[B] Forgot this delay
//Now the LCD is in 4-bit mode
LCDCmd(0b00101000); //function set 4-bit,2 line 5x7 dot format
LCDCmd(0b00001100|style); //Display On
}
void LCDInit(uint8_t style)
{
__delay_ms(30);
//Set IO Ports
LCD_DATA_TRIS&=(~(0x0F<<LCD_DATA_POS)); //Output
LCD_E_TRIS=0; //Output
LCD_RS_TRIS=0; //Output
LCD_RW_TRIS=0; //Output
LCD_DATA_PORT&=(~(0x0F<<LCD_DATA_POS));//Clear data port
CLEAR_E();
CLEAR_RW();
CLEAR_RS();
//Set 4-bit mode
__delay_us(0.5); //tAS
SET_E();
LCD_DATA_PORT|=((0b00000010)<<LCD_DATA_POS); //[B] To transfer 0b00100000 i was using LCD_DATA_PORT|=0b00100000
__delay_us(1);
CLEAR_E();
__delay_us(1);
//Wait for LCD to execute the Functionset Command
LCDBusyLoop(); //[B] Forgot this delay
//Now the LCD is in 4-bit mode
LCDCmd(0b00101000); //function set 4-bit,2 line 5x7 dot format
LCDCmd(0b00001100|style); //Display On
/* Custom Char */
LCDCmd(0b01000000);
uint8_t __i;
for(__i=0;__i<sizeof(__cgram);__i++)
LCDData(__cgram[__i]);
}
