//************************************
// Method: LCD_BusyWait
// FullName: LCD_BusyWait
// Access: public
// Returns: void
// Qualifier: funkcija ?aka, dokler ni LCD pripravljen ali dokler ne pote?e timeout. Timeout je odvisen od ure procesorja.
// Parameter: unsigned int timeout
//************************************
void LCD_BusyWait(unsigned int timeout)
{
for (unsigned int i=0;i<timeout;i++)
{
if (!LCD_Busy()) break;
}
}
void LCD_Write4Control (unsigned char CMD)
{
while ((LCD_Busy()&0X80)==0X80); // Test if LCD busy
CLEAR_LCD_E; // Disable LCD
port_lcd&= ~0xF0; // Load data to port
port_lcd|=CMD;
SET_LCD_WRITE ; // Set LCD to write
SET_LCD_CMD; // Set LCD to command
_delay_us(5);
SET_LCD_E; // Write data to LCD
_delay_us(3);
CLEAR_LCD_E;
_delay_us(5); // Disable LCD
port_lcd&= ~0xF0;
//delay_ms(2);
}
// ***************************************** //
// *** Write 1/2 byte of data to the LCD *** //
// ***************************************** //
void LCD_Write4Data (unsigned char Data)
{
while ((LCD_Busy()&0X80)==0X80); // Test if LCD Busy
CLEAR_LCD_E; // Disable LCD
port_lcd&= ~0xF0; // Load data to port
port_lcd|=Data;
SET_LCD_WRITE ; // Set LCD to write
SET_LCD_DATA; // Set LCD to command
_delay_us(5);
SET_LCD_E; // Write data to LCD
_delay_us(3);
CLEAR_LCD_E;
_delay_us(5); // Disable LCD
port_lcd&= ~0xF0;
//delay_ms(1);
}
// Write a character to the LCD data register
void LCD_Write(char dval)
{
LCD_Busy(); // Wait for busy to clear
_gdm_lcd_data = dval; // Output character
}
// Issue a command to the LCD command register
void LCD_Command(unsigned char cval)
{
LCD_Busy(); // Wait for busy to clear
_gdm_lcd_cmd = cval; // Ouptut command
}
