// Direct instruction functions for LCD
void LCD_Low_Level::clearDisplay() {
waitUntilNotBusy();
command(LCD_ClearDisplay);
// delayMicroseconds(2000); // Must wait 1.53ms, so waiting 2ms to be safe.
}
void LCD_Low_Level::writeDataToRAM(uint8_t data) {
waitUntilNotBusy();
writeData(data);
// delayMicroseconds(100); // Must wait 43us, so waiting 100us to be safe
}
void LCD_Low_Level::returnHome() {
waitUntilNotBusy();
command(LCD_ReturnHome);
// delayMicroseconds(2000); // Must wait 1.53ms, so waiting 2ms to be safe.
}
void LCD_Low_Level::setDDRAMAddress(uint8_t DDRAM_address) {
waitUntilNotBusy();
uint8_t data = LCD_SetDDRAMAddress | (DDRAM_address & 0x7F);
command(data);
// delayMicroseconds(100); // Must wait 39us, so waiting 100us to be safe
}
uint8_t LCD_Low_Level::readDataFromRAM(void) {
waitUntilNotBusy();
uint8_t data = 0;
data = readData(1);
// delayMicroseconds(100); // Must wait 39us, so waiting 100us to be safe
return data;
}
void lcdWriteData(Data)
{
waitUntilNotBusy();
RS=1
RW=0;
P0=dData;
EN=1;
delay();
EN=0;
RW=1;
}
void writeCMD(cmd)
{
waitUntilNotBusy();
RS=0;
RW=0;
P0=cmd;
EN=1;
delay();
EN=0;
RW=1;
}
void LCD_Low_Level::cursorDisplayShift(uint8_t screen_shift, uint8_t direction) {
waitUntilNotBusy();
uint8_t data = LCD_CursorShift;
if (screen_shift) {
data |= LCD_MoveDisplay;
}
if (direction) {
data |= LCD_MoveRight;
}
command(data);
// delayMicroseconds(100); // Must wait 39us, so waiting 100us to be safe
}
void LCD_Low_Level::entrySetMode(uint8_t direction, uint8_t shift_enable) {
waitUntilNotBusy();
uint8_t data = LCD_EntryModeSet;
if (direction) {
data |= LCD_DisplayRight;
}
if (shift_enable) {
data |= LCD_CursorRight;
}
command(data);
// delayMicroseconds(100); // Must wait 39us, so waiting 100us to be safe.
}
void LCD_Low_Level::functionSet(uint8_t data_length, uint8_t number_lines, uint8_t display_font) {
waitUntilNotBusy();
uint8_t data = LCD_FunctionSet;
if (data_length) {
data |= LCD_8BitMode;
}
if (number_lines) {
data |= LCD_2Line;
}
if (display_font) {
data |= LCD_5x10Dots;
}
command(data);
// delayMicroseconds(100); // Must wait 39us, so waiting 100us to be safe
}
void LCD_Low_Level::displayControl(uint8_t display_on, uint8_t cursor_on, uint8_t blinking_on) {
waitUntilNotBusy();
uint8_t data = LCD_DisplayControl;
if (display_on) {
data |= LCD_DisplayOn;
}
if (cursor_on) {
data |= LCD_CursorOn;
}
if (blinking_on) {
data |= LCD_BlinkOn;
}
command(data);
// delayMicroseconds(100); // Must wait 39us, so waiting 100us to be safe
}