lcd.h

/*
  lcd.h
  
  Nicolas Williamson - July 2009
*/

#ifndef __H_LCD__
#define __H_LCD__

typedef enum lcd_state{
  LCD_IDLE = 0, 
  LCD_MOVE, 
  LCD_DISPLAY 
} LCD_STATE;

typedef struct lcd_char{
  unsigned char data; 
  unsigned char pos; 
  unsigned int quad_num; 
} LCD_CHAR;

// Functions
void lcd_init(VOID_VOID_F overflowfunc);
void lcd_write_data(unsigned char data);
void lcd_write_instruction(unsigned char instruction);
void lcd_write_bit(unsigned int db, unsigned int bit);

//void lcd_push(LCD_CHAR c);
//LCD_CHAR lcd_pop(void);
int lcd_push(LCD_CHAR* c);
int lcd_pop(LCD_CHAR* c);

void lcd_print(char* string, unsigned int length, unsigned int start_pos);
void lcd_print_char(char ch, unsigned int pos);
void lcd_us_delay(long unsigned int delay_time_us);
//methods for CAN setting
void lcd_set_line1(char c1, char c2, char c3, char c4, char c5, char c6, char c7, char c8);
void lcd_set_line2(char c1, char c2, char c3, char c4, char c5, char c6, char c7, char c8);
void lcd_set_quad1(char c1, char c2, char c3, char c4);
void lcd_set_quad2(char c1, char c2, char c3, char c4);
void lcd_set_quad3(char c1, char c2, char c3, char c4);
void lcd_set_quad4(char c1, char c2, char c3, char c4);

//timer isr
__irq void lcd_isr(void);

/*HARDWARE SETUP

  // *******************************************************************************
  // Initialize LCD
  // *******************************************************************************
  PINSEL0 &= ~(0xFFFF); //Pins P0.0-P0.7 GPIO (D0-D7 on LCD controller)
  PINSEL0 &= ~(((unsigned int)3)<<30); //P0.15 GPIO (RS)
  PINSEL0 &= ~(3<<20); //P0.10 GPIO (R/~W)
  PINSEL0 &= ~(3<<22); //P0.11 GPIO (EN)
  FIO0DIR |= 0x8CFF; //set above pins as output
  FIO0MASK &= ~(0xFF); //zero fiomask
  //Timer stuff
  T0PR = 0;//no prescaling
  T0MR0 = 60000000/20000;//Match Register for scheduler interrupts
  T0TCR = 1;//enabled for counting
  T0CTCR = 0;//simple timer
  T0MCR = (1)|(1<<1);//interrupt (bit0) and reset (bit1) on MR0

*/

#endif