void LCDSecondLine(void)
{
/* Setup the R/W for writing (PTGD), Initialize EN and RS to 0 */
LCD_RW = 0;
LCD_REG_SEL = 0;
/* DD Ram Address Set - 1st Digit */
LCDWrite4bits(0xC0);
LCDToggleEN();
LCDWaitShort(1);
LCDWrite4bits(0x00);
LCDToggleEN();
LCDWaitShort(4);
}
void LCDClearDisplay(void)
{
/* Setup the R/W for writing (PTGD), Initialize EN and RS to 0 */
LCD_REG_SEL = 0;
LCD_RW = 0;
LCDWrite4bits(0x00);
LCDToggleEN();
LCDWaitShort(1);
LCDWrite4bits(0x10);
LCDToggleEN();
LCDWaitLong(3);
}
void LCDWriteChar(UINT8 ch)
{
LCD_RW = 0;
LCD_EN = 0;
LCD_REG_SEL = 1;
LCDWrite4bits(ch);
LCDToggleEN();
LCDWrite4bits(ch << 4);
LCDToggleEN();
LCDWaitShort(2);
}
void LCD_Init
(
void
)
{
LCDWaitLong( Wait5mSec );
/* This function setup Bits 6-7 as outputs (EN & RS) (PTEDD) */
Setup_EN_RS;
/* Setup the XX Port (4-7 data bits, 3 R/W ) (PTGDD)
data is output (default), r/w is output */
SetupDataBit;
/* Initialize data port */
InitDataPort;
/* Setup the R/W for writing (PTGD) */
Setup_R_W_Write;
/* Initialize EN and RS to 0 */
Init_EN_RS;
/* Send the reset sequence */
LCD_Write4bits( 0x30 );
LCDToggleEN;
LCDWaitLong( Wait5mSec );
LCD_Write4bits( 0x30 );
LCDToggleEN;
LCDWaitShort( Wait30uSec );
LCD_Write4bits( 0x30 );
LCDToggleEN;
LCDWaitShort( Wait30uSec );
LCD_Write4bits( 0x20 );
LCDToggleEN;
LCDWaitShort( Wait15uSec );
/* Function, 4 bit data length */
LCD_Write4bits( 0x20 );
LCDToggleEN;
LCDWaitShort( Wait15uSec );
/* 2 lines, 5x7 dot format */
LCD_Write4bits( 0x80 );
LCDToggleEN;
LCDWaitShort( Wait60uSec );
/* Entry Mode Inc, No Shift */
LCD_Write4bits( 0x00 );
LCDToggleEN;
LCDWaitShort( Wait15uSec );
LCD_Write4bits( 0x60 );
LCDToggleEN;
LCDWaitShort( Wait75uSec );
/* Display ON/OFF Control - Display On, Cursor Off, Blink Off */
LCD_Write4bits( 0x00 );
LCDToggleEN;
LCDWaitShort( Wait15uSec );
LCD_Write4bits( 0xC0 );
LCDToggleEN;
LCDWaitShort( Wait75uSec );
/* Display Clear */
LCD_ClearDisplay();
LCDLine(LineOne);
}
void LCD_Init
(
void
)
{
/* Wait 15 ms */
LCDWaitLong( Wait15mSec );
/* This function setup Bits 5-7 as outputs (RS, EN & R/W) (PTDDD) */
Setup_EN_RS_R_W;
/* Setup the XX Port (4-7 data bits) (PTFDD)
data is output (default) */
SetupDataBit;
/* Initialize data port */
InitDataPort;
/* Send the reset sequence */
Setup_R_W_Write;
LCDToggleEN;
/* Function, 8 bit data length */
LCD_Write4bits( 0x30 );
LCDToggleEN;
/* Wait more than 4.1 ms */
LCDWaitLong( Wait5mSec );
/* Function, 8 bit data length */
LCD_Write4bits( 0x30 );
LCDToggleEN;
/* Wait more than 100 us */
LCDWaitShort( Wait105uSec );
/* Function, 8 bit data length */
LCD_Write4bits( 0x30 );
LCDToggleEN;
LCDWaitShort( Wait45uSec );
/* Function, 4 bit data length */
LCD_Write4bits( 0x20 );
LCDToggleEN;
LCDWaitShort( Wait45uSec );
/* Function, 4 bit data length */
LCD_Write4bits( 0x20 );
LCDToggleEN;
LCDWaitShort( Wait15uSec );
/* 2 lines, 5x8 dot format */
LCD_Write4bits( 0x80 );
LCDToggleEN;
LCDWaitShort( Wait45uSec );
/* Display on */
LCD_Write4bits( 0x00 );
LCDToggleEN;
LCDWaitShort( Wait15uSec );
LCD_Write4bits( 0xC0 );
LCDToggleEN;
LCDWaitShort( Wait45uSec );
/* Display clear */
LCD_Write4bits( 0x00 );
LCDToggleEN;
LCDWaitShort( Wait15uSec );
LCD_Write4bits( 0x10 );
LCDToggleEN;
LCDWaitLong( Wait2mSec );
/* Entry mode set */
LCD_Write4bits( 0x00 );
LCDToggleEN;
LCDWaitShort( Wait15uSec );
LCD_Write4bits( 0x60 );
LCDToggleEN;
LCDWaitShort( Wait45uSec );
}
void LCDInit(void)
{
LCDWaitLong(5);
LCD_INIT_MACRO;
/* Initialize data port */
LCD_DATA1 = 0;
LCD_DATA2 = 0;
LCD_DATA3 = 0;
LCD_DATA4 = 0;// PTBD = PTBD & 0x0F;
/* Setup the R/W for writing (PTBD) */
LCD_RW = 0;
/* Initialize EN and RS to 0 */
LCD_REG_SEL = 0;
LCD_EN = 0;
/* Send the reset sequence */
LCDWrite4bits(0x30);
LCDToggleEN();
LCDWaitLong(5);
LCDWrite4bits(0x30);
LCDToggleEN();
LCDWaitShort(2);
LCDWrite4bits(0x30);
LCDToggleEN();
LCDWaitShort(2);
LCDWrite4bits(0x20);
LCDToggleEN();
LCDWaitShort(1);
/* Function, 4 bit data length */
LCDWrite4bits(0x20);
LCDToggleEN();
LCDWaitShort(1);
/* 2 lines, 5x7 dot format */
LCDWrite4bits(0x80);
LCDToggleEN();
LCDWaitShort(4);
// Entry Mode Inc, No Shift
LCDWrite4bits(0x00);
LCDToggleEN();
LCDWaitShort(1);
LCDWrite4bits(0x60);
LCDToggleEN();
LCDWaitShort(5);
// Display ON/OFF Control - Display On, Cursor Off, Blink Off
LCDWrite4bits(0x00);
LCDToggleEN();
LCDWaitShort(1);
LCDWrite4bits(0xC0);
LCDToggleEN();
LCDWaitShort(5);
// Display Clear
LCDClearDisplay();
//LCDFirstLine();
}
