LCD_driver.h

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/* This file has been prepared for Doxygen automatic documentation generation.*/
/**************************************************************/
// Definitions
/**************************************************************/
#define LCD_INITIAL_CONTRAST 0x0F
#define LCD_TIMER_SEED          15
#define LCD_REGISTER_COUNT  20

/**************************************************************/
//MACROS
/**************************************************************/
#define LCD_SET_COLON(active) LCD_displayData[8]=active; //active =[TRUE;FALSE]
#define pLCDREG (*(unsigned char *)(0xEC))                // DEVICE SPECIFIC!!! (ATmega169)
#define LCD_CONTRAST_LEVEL(level) LCDCCR=(0x0F & level);  // DEVICE SPECIFIC!!! (ATmega169)

/**************************************************************/
// Global functions
/**************************************************************/
void LCD_Init (void);
void LCD_WriteDigit(unsigned char input, unsigned char digit);
void LCD_AllSegments(unsigned char);

/**************************************************************/
// Global variables
/**************************************************************/
union _LCD_status{
  unsigned char allFields;
  struct{
    volatile unsigned char updateRequired : 1; //Indicates that the LCD_displayData should be latched to the LCD Data Regs
                                      // Can be used to block LCD updating, while updating LCD_displayData.
    volatile unsigned char updateComplete : 1; //Indicates that the LCD_displayData has been latched to the LCD Data Regs
                                      // Can be used to determine if LCD_displayData is ready for new data.
    volatile unsigned char blinkLCD       : 1; //Indicates whether the actual LCD-digit should blink or not
                                      // Added to the LCD_driver.h due to the application note AVR064

    unsigned char unused : 5;
  };
};
extern union _LCD_status LCD_status;

extern unsigned char LCD_displayData[LCD_REGISTER_COUNT];

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