void SpiLcd::begin(uint8_t cols, uint8_t lines) {
_numlines = lines;
_currline = 0;
_currpos = 0;
// Set all outputs of shift register to low, this turns the backlight ON.
_spiByte = 0x00;
spiOut();
// The following initialization sequence should be compatible with:
// - Newhaven OLED displays
// - Standard HD44780 or S6A0069 LCD displays
delayMicroseconds(50000); // wait 50 ms just to be sure that the lcd is initialized
write4bits(0x03); //set to 8-bit
delayMicroseconds(50000); // wait > 4.1ms
write4bits(0x03); //set to 8-bit
delayMicroseconds(1000); // wait > 100us
write4bits(0x03); //set to 8-bit
delayMicroseconds(50000); // wait for execution
write4bits(0x02); //set to 4-bit
delayMicroseconds(50000); // wait for execution
command(0x28); // set to 4-bit, 2-line
clear(); // display clear
// Entry Mode Set:
leftToRight();
noAutoscroll();
home();
//noCursor();
display();
}
void LiquidCrystalNew_T3TWI::initChip(uint8_t dotsize, byte witchEnablePin) {
byte displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS;
byte i;
if (_lcd_lines > 1) displayfunction |= LCD_2LINE;
// for some 1 line displays you can select a 10 pixel high font
if ((dotsize != 0) && (_lcd_lines == 1)) displayfunction |= LCD_5x10DOTS;
for (i=0;i<18;i++) {
delayMicroseconds(LCD_STARTUP_DLY);
}
setDataMode(0);//COMMAND MODE
writeGpio(_theData & ~witchEnablePin); // En LOW---------------------------------------*/
write4bits(0x03);
delayMicroseconds(5000); // I have one LCD for which 4500 here was not long enough.
// second try
write4bits(0x03);
delayMicroseconds(150); // wait
// third go!
write4bits(0x03);
delayMicroseconds(150);
// finally, set to 4-bit interface
write4bits(0x02);
delayMicroseconds(150);
// finally, set # lines, font size, etc.
command(LCD_FUNCTIONSET | displayfunction);
// turn the display on with no cursor or blinking default
_displaycontrol = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF;
display();
// clear it off
clear();
// Initialize to default text direction (for romance languages)
_displaymode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT;
// set the entry mode
command(LCD_ENTRYMODESET | _displaymode);
noAutoscroll();
}
