void lcdInitialize()
{
// startup delay
//posTaskSleep(MS(50));
_delay_ms(50);
// set data direction of pins as outputs
*(enablePort-1) |= enableMask;
*(registerSelectPort -1) |= registerSelectMask;
*(ports[0]-1) |= pinMasks[0];
*(ports[1]-1) |= pinMasks[1];
*(ports[2]-1) |= pinMasks[2];
*(ports[3]-1) |= pinMasks[3];
lcdSetEnable();
lcdClearRegisterSelect();
_delay_us(2);
// firsth step
*(ports[0]) |= pinMasks[0];
*(ports[1]) |= pinMasks[1];
*(ports[2]) &= ~pinMasks[2];
*(ports[3]) &= ~pinMasks[3];
_delay_us(2);
lcdClearEnable();
//posTaskSleep(MS(5));
_delay_ms(5);
// second step
lcdSetEnable();
_delay_us(2);
lcdClearEnable();
//posTaskSleep(MS(1));
_delay_us(1000);
// third step
lcdSetEnable();
_delay_us(2);
lcdClearEnable();
// posTaskSleep(MS(1));
_delay_us(1000);
// fourth step
*(ports[0]) &= ~pinMasks[0];
lcdSetEnable();
_delay_us(2);
lcdClearEnable();
//posTaskSleep(MS(1));
_delay_us(1000);
lcdWriteCommand(0b00101000);
lcdWriteCommand(0b00001000);
lcdWriteCommand(0b00000100);
lcdWriteCommand(0b00000001);
//posTaskSleep(MS(50));
_delay_ms(50);
}
void lcdInit( void )
{
pinConfig( LCD_SDA, OUT );
pinConfig( LCD_SCL, OUT );
pinConfig( LCD_RS, OUT );
pinConfig( LCD_CS, OUT );
pinConfig( LCD_PSB, OUT );
pinConfig( LCD_PSI2B, OUT );
pinConfig( LCD_BL, OUT );
pinSet( LCD_BL, HIGH );
pinSet( LCD_RS, HIGH );
pinSet( LCD_CS, HIGH );
// SPI
pinSet( LCD_PSB, LOW );
pinSet( LCD_PSI2B, HIGH );
lcdWriteCommand( 0x38 ); //FUNCTION SET 8 bit,N=1 2-line display mode,5*7dot
delay( 100 );
lcdWriteCommand( 0x39 ); //FUNCTION SET 8 bit,N=1 2-line display mode,5*7dot IS=1
delay( 100 );
lcdWriteCommand( 0x1c ); //Internal OSC frequency adjustment 183HZ bias will be 1/4
delay( 100 );
lcdWriteCommand( 0x73 ); //Contrast control low byte
delay( 100 );
lcdWriteCommand( 0x57 ); //booster circuit is turn on. /ICON display off. /Contrast control high byte
delay( 100 );
lcdWriteCommand( 0x6c ); //Follower control
delay( 1000 );
lcdWriteCommand( 0x0c ); //DISPLAY ON
delay( 100 );
lcdWriteCommand( 0x01 ); //CLEAR DISPLAY
delay( 10000 );
lcdWriteCommand( 0x06 ); //ENTRY MODE SET CURSOR MOVES TO RIGHT
delay( 100 );
}
void lcdWriteScreenBuffer( void )
{
u16 i, ii;
for( i = 0; i < 6; i++ ){
lcdWriteCommand( LCD_SETY | i );
lcdWriteCommand( LCD_SETX );
for( ii = 0; ii < 84; ii++ ){
lcdWriteData( globalScreenBuffer[ ( ( ii ) * 6 ) + i ] );
} // for
} // for
}
void lcdSetAddr(unsigned int x1,unsigned int x2,unsigned int y1,unsigned int y2)
{
lcdWriteCommand(0x2A); //column address set
lcdWriteData(x1>>8);
lcdWriteData(x1);
lcdWriteData(x2>>8);
lcdWriteData(x2);
lcdWriteCommand(0x2B); //page(row) address set
lcdWriteData(y1>>8);
lcdWriteData(y1);
lcdWriteData(y2>>8);
lcdWriteData(y2);
lcdWriteCommand(0x2C); // RAM Write
}
void lcdWriteAddress( u8 column, u8 row )
{
if( column >= LCD_MAXCOLUMNS ) {
column = 0;
++row;
} // if
if( row >= LCD_MAXROWS ) {
row = 0;
} // if
if( row == 0 ) {
lcdWriteCommand( LCD_DDRAM + column );
} else {
lcdWriteCommand( 0xC0 + column );
} // else
}
//-----------------------------------------------------------------
// lcdInit()
//-----------------------------------------------------------------
void lcdInit(void)
{
// Init PIC IO and buffer
LCD_DATA_TRIS = 1;
LCD_BUF_EN_OUT = LCD_BUF_EN_DISABLE;
LCD_BUF_EN_OUT_TRIS = 0;
LCD_BUF_DIR_OUT_TRIS = 0;
LCD_BUF_DIR_OUT = LCD_BUF_DIR_WRITE;
LCD_CLOCK_OUT_TRIS = 0;
LCD_CLOCK_OUT = 1;
LCD_RW_OUT = LCD_RW_WRITE;
LCD_RW_OUT_TRIS = 0;
LCD_RS_OUT = LCD_RS_CMD;
LCD_RS_OUT_TRIS = 0;
// Setup pipeline timer
T4CON = 0x8000; // 1:1 Prescale (20MHz)
TMR4 = 0;
PR4 = PIPELINE_DELAY_TIME;
_T4IF = 0;
// Init LCD Controller
lcdLongDelay(20);
lcdWriteCommand(LCD_CMD_FUNCTION_SET);
lcdLongDelay(6);
lcdWriteCommand(LCD_CMD_FUNCTION_SET);
lcdLongDelay(1);
lcdWriteCommand(LCD_CMD_FUNCTION_SET);
lcdLongDelay(1);
lcdWriteCommand(LCD_CMD_CLEAR_DISPLAY);
lcdLongDelay(2);
lcdPipePush(LCD_PIPE_CMD | LCD_CMD_DISPLAY_ON);
lcdPipePush(LCD_PIPE_CMD | LCD_CMD_SET_ENTRY_MODE);
// Backlight
LCD_BKLIGHT_OUT = 1;
LCD_BKLIGHT_OUT_TRIS = 0;
//lcdPrint("Hello123World456");
}
// index max 7
static void lcdSetCGRAM(uint8_t index,char letter[8])
{
lcdWriteCommand((index<<3)|(1<<6));
for(uint8_t i=0; i<8; i++)
{
lcdWriteData(letter[i]);
}
}
/*
* Set cursor at the specified coordinate in which x is the column and y is the row
*/
void lcdGoToXY(uint8_t ui8X, uint8_t ui8Y) {
uint8_t ui8Address;
// Specify the address
if (ui8Y == 0) {
ui8Address = 0x00 + ui8X;
}
else {
ui8Address = 0x40 + ui8X;
}
// Set the bit for cursor moving command
ui8Address |= 0x80;
lcdWriteCommand(ui8Address);
}
//-----------------------------------------------------------------
// lcdCheck() - Loads the pipeline into the LCD
//-----------------------------------------------------------------
void lcdCheck(void)
{
uint16_t pipelineValue;
if(_T4IF && lcdGetPipeSize())
{
pipelineValue = lcdPipePop();
if(pipelineValue & LCD_PIPE_CMD)
{ // Command
lcdWriteCommand((uint8_t)pipelineValue);
}
else
{ // Data
lcdWriteData((uint8_t)pipelineValue);
}
TMR4 = 0;
_T4IF = 0;
}
}
/*
* LCD initialization function
* Things to consider when initialize a characters LCD:
* _Function set:
* + Interface data: 4-bit (0) or 8-bit (1)
* + Number of line: 1 line (0) or 2 lines (1)
* + Character font: 5x7 dots (0) or 5x10 dots (1)
* _Display on/off control:
* + Display: off (0) or on (1)
* + Cursor: off (0) or on (1)
* + Cursor blink: off (0) or on (1)
* _Entry mode set:
* + Cursor move direction: decrement (0) or increment (1)
* + Accompanies display shift: off (0) or on (1)
*/
void lcdInit(uint8_t ui8FunctionSetOptions, uint8_t ui8EntryModeSetOptions, uint8_t ui8DisplayOptions) {
SysCtlPeripheralEnable(LCD_GPIO_DATA_PERIPH);
SysCtlPeripheralEnable(LCD_GPIO_CTL_PERIPH);
// Unlock the locked pins, modify this if needed
HWREG(LCD_GPIO_DATA_BASE + GPIO_O_LOCK) = GPIO_LOCK_KEY;
HWREG(LCD_GPIO_DATA_BASE + GPIO_O_CR) |= 0x80;
GPIOPinTypeGPIOOutput(LCD_GPIO_DATA_BASE, DATA_PINS);
GPIOPinTypeGPIOOutput(LCD_GPIO_CTL_BASE, E_PIN | RS_PIN);
// Check if using 8-bit data or 4-bit data
data8Bit = (ui8FunctionSetOptions & FUNCTION_SET_8_BIT) > 0;
delayMs(20);
// Some mysterious magic
lcdWriteCommand(0x30);
delayMs(20);
lcdWriteCommand(0x30);
delayMs(20);
lcdWriteCommand(0x30);
delayMs(20);
if (!data8Bit) {
lcdWriteCommand(0x20);
delayMs(20);
}
// Initial setup
lcdWriteCommand(FUNCTION_SET_BASE | ui8FunctionSetOptions);
lcdWriteCommand(ENTRY_MODE_SET_BASE | ui8EntryModeSetOptions);
lcdWriteCommand(DISPLAY_BASE | ui8DisplayOptions);
lcdWriteCommand(CLEAR_DISPLAY);
}
void lcdInit( void )
{
spiConfig( &pygmyLCD, LCD_CS, LCD_SCK, NONE, LCD_MOSI );
pinConfig( LCD_RESET, OUT ); // We will use USART1_RTS as CS
pinConfig( LCD_A0, OUT );
pinSet( LCD_RESET, LOW );
delay( 2000 ); // microseconds
pinSet( LCD_RESET, HIGH );
delay( 2000 ); // microseconds
lcdWriteCommand( LCD_FUNCSET | LCD_FUNCSET_H );
lcdWriteCommand( LCD_SETVOP | 55 );
lcdWriteCommand( LCD_TEMPCONTROL );
lcdWriteCommand( LCD_BIAS | LCD_BIAS_BS1|LCD_BIAS_BS0 );
lcdWriteCommand( LCD_FUNCSET );
lcdWriteCommand( LCD_DISPCONTROL | LCD_DISPCONTROL_D );
lcdSetBPP( PYGMY_PBM_1BPP );
lcdSetColor( 0xFF, 0xFF, 0xFF );
lcdBackColor( 0x00, 0x00, 0x00 );
lcdClear();
drawAll();
}
/*
* Clear display
*/
void lcdClear() {
lcdWriteCommand(CLEAR_DISPLAY);
}
void lcdOff( void )
{
lcdWriteCommand( LCD_FUNCSET | LCD_FUNCSET_PD );
}
void lcdOn( void )
{
lcdWriteCommand( LCD_FUNCSET );
}
void lcdGotoXY(uint8_t column, uint8_t row)
{
uint8_t command = column+row*0x40+0x80;
lcdWriteCommand(command);
}
void lcdDisplayOff()
{
uint8_t command = 0b00001000;
lcdWriteCommand(command);
}
void lcdClear()
{
lcdWriteCommand(0b00000001);
//posTaskSleep(HZ/500);
_delay_ms(2);
}
