lcd_x_6800.c

uc-gui.rar

/*
*********************************************************************************************************
*                                                uC/GUI
*                        Universal graphic software for embedded applications
*
*                       (c) Copyright 2002, Micrium Inc., Weston, FL
*                       (c) Copyright 2002, SEGGER Microcontroller Systeme GmbH
*
*              礐/GUI is protected by international copyright laws. Knowledge of the
*              source code may not be used to write a similar product. This file may
*              only be used in accordance with a license and should not be redistributed
*              in any way. We appreciate your understanding and fairness.
*
----------------------------------------------------------------------
File        : LCD_X_6800.c
Purpose     : Port routines
----------------------------------------------------------------------
*/

/*********************************************************************
*
*           Hardware configuration
*
**********************************************************************
  Needs to be adapted to your target hardware.
*/

/* Configuration example:

#include <IOM16C.H>      // Include port definitions

#define LCD_CLR_A0()      P8 &= ~(1<<0)
#define LCD_SET_A0()      P8 |=  (1<<0) 
#define LCD_CLR_RW()      P8 &= ~(1<<1)
#define LCD_SET_RW()      P8 |=  (1<<1) 
#define LCD_CLR_E()       P8 &= ~(1<<2)
#define LCD_SET_E()       P8 |=  (1<<2) 
#define LCD_CLR_CS0()     P8 &= ~(1<<3)
#define LCD_SET_CS0()     P8 |=  (1<<3)
#define LCD_CLR_CS1()     P8 &= ~(1<<4)
#define LCD_SET_CS1()     P8 |=  (1<<4)
#define LCD_DATA_IN       P7
#define LCD_DATA_OUT      P7
#define LCD_SET_DIR_IN()  P7D = 0
#define LCD_SET_DIR_OUT() P7D = 0xff
#define LCD_DELAY(ms)     GUI_Delay(ms)
*/

/*********************************************************************
*
*           Defaults
*
**********************************************************************
*/

#ifndef LCD_CLR_RW
  #define LCD_CLR_RW()
#endif
#ifndef LCD_SET_RW
  #define LCD_SET_RW()
#endif
#ifndef LCD_SET_CS0
  #define LCD_SET_CS0()
#endif
#ifndef LCD_SET_CS1
  #define LCD_SET_CS1()
#endif
#ifndef LCD_SET_CS2
  #define LCD_SET_CS2()
#endif

#ifndef LCD_SET_DIR_IN
  #define LCD_SET_DIR_IN()
#endif
#ifndef LCD_SET_DIR_OUT
  #define LCD_SET_DIR_OUT()
#endif

/*********************************************************************
*
*           High level LCD access macros
*
**********************************************************************
  Usually, there is no need to modify these macros.
  It should be sufficient ot modify the low-level macros
  above.
*/

#define LCD_X_READ()      \
  LCD_SET_RW();           \
  LCD_SET_E();            \
  c = LCD_DATA_IN;        \
  LCD_CLR_E()
/*
  LCD_SET_DIR_IN();       \
  LCD_SET_RW();           \
  LCD_SET_E();            \
  c = LCD_DATA_IN;        \
  LCD_CLR_E();            \
  LCD_CLR_RW();           \
  LCD_SET_DIR_OUT()
*/

#define LCD_X_WRITE(Data) \
  LCD_CLR_RW();           \
  LCD_SET_DIR_OUT();      \
  LCD_DATA_OUT = Data;    \
  LCD_SET_E();            \
  LCD_CLR_E();            \
  LCD_SET_DIR_IN();       \
  LCD_SET_RW()
/*
  LCD_DATA_OUT = Data;    \
  LCD_SET_E();            \
  LCD_CLR_E();            \
  LCD_SET_RW()
*/

/*********************************************************************
*
*           Initialisation
*
**********************************************************************
  This routine should be called from your application program
  to set port pins to their initial values
*/

void LCD_X_Init(void) {
/*
  LCD_CLR_RESET();
  LCD_SET_DIR_OUT();
  LCD_SET_E();
  LCD_CLR_RW();
  LCD_SET_A0();
  LCD_SET_CS0();
  LCD_SET_CS1();
  LCD_SET_CS2();
  LCD_SET_RESET();
*/
  LCD_CLR_RESET();
  LCD_SET_DIR_IN();
  LCD_CLR_E();
  LCD_SET_RW();
  LCD_SET_A0();
  LCD_SET_CS0();
  LCD_SET_CS1();
  LCD_SET_CS2();
  LCD_SET_RESET();
}

/*********************************************************************
*
*           Access routines, controller 0
*
**********************************************************************
  Usually, there is no need to modify these routines.
  It should be sufficient ot modify the low-level macros
  above.
*/

/* Read from controller 0, with A0 = 0, CS0 = 0, CS1 = 1 */
char LCD_X_Read00(void) {
  char c;
  LCD_CLR_CS0();
  LCD_CLR_A0();
  LCD_X_READ();
  LCD_SET_CS0();
  return c;
}

/* Read from controller 0, with A0 = 1, CS0 = 0, CS1 = 1 */
char LCD_X_Read01(void) {
  char c;
  LCD_CLR_CS0();
  LCD_SET_A0();
  LCD_X_READ();
  LCD_SET_CS0();
  return c;
}

/* Write to controller 0, with A0 = 0, CS0 = 0, CS1 = 1 */
void LCD_X_Write00(char c) {
  LCD_CLR_A0();
  LCD_CLR_CS0();
  LCD_X_WRITE(c);
  LCD_SET_CS0();
}

/* Write to controller 0, with A0 = 1, CS0 = 0, CS1 = 1 */
void LCD_X_Write01(char c) {
  LCD_SET_A0();
  LCD_CLR_CS0();
  LCD_X_WRITE(c);
  LCD_SET_CS0();
}

/*********************************************************************
*
*           Access routines, controller 1
*
**********************************************************************
  Usually, there is no need to modify these routines.
  It should be sufficient ot modify the low-level macros
  above.
*/

/* Read from controller 1, with A0 = 0, CS0 = 1, CS1 = 0 */

#ifdef LCD_CLR_CS1

char LCD_X_Read10(void) {
  char c;
  LCD_CLR_CS1();
  LCD_CLR_A0();
  LCD_X_READ();
  LCD_SET_CS1();
  return c;
}

/* Read from controller 1, with A0 = 1, CS0 = 1, CS1 = 0 */
char LCD_X_Read11(void) {
  char c;
  LCD_CLR_CS1();
  LCD_SET_A0();
  LCD_X_READ();
  LCD_SET_CS1();
  return c;
}

/* Write to controller 1, with A0 = 0, CS0 = 1, CS1 = 0 */
void LCD_X_Write10(char c) {
  LCD_CLR_A0();
  LCD_CLR_CS1();
  LCD_X_WRITE(c);
  LCD_SET_CS1();
}

/* Write to controller 1, with A0 = 1, CS0 = 1, CS1 = 0 */
void LCD_X_Write11(char c) {
  LCD_SET_A0();
  LCD_CLR_CS1();
  LCD_X_WRITE(c);
  LCD_SET_CS1();
}

#endif /* LCD_CLR_CS1 */

/*********************************************************************
*
*           Access routines, controller 2
*
**********************************************************************
  Usually, there is no need to modify these routines.
  It should be sufficient ot modify the low-level macros
  above.
*/

#ifdef LCD_CLR_CS2

/* Read from controller 2, with A0 = 0, CS0 = 1, CS1 = 1 */
char LCD_X_Read20(void) {
  char c;
  LCD_CLR_CS2();
  LCD_CLR_A0();
  LCD_X_READ();
  LCD_SET_CS2();
  return c;
}

/* Read from controller 2, with A0 = 1, CS0 = 1, CS1 = 1 */
char LCD_X_Read21(void) {
  char c;
  LCD_CLR_CS2();
  LCD_SET_A0();
  LCD_X_READ();
  LCD_SET_CS2();
  return c;
}

/* Write to controller 2, with A0 = 0, CS0 = 1, CS1 = 1 */
void LCD_X_Write20(char c) {
  LCD_CLR_A0();
  LCD_CLR_CS2();
  LCD_X_WRITE(c);
  LCD_SET_CS2();
}

/* Write to controller 2, with A0 = 1, CS0 = 1, CS1 = 1 */
void LCD_X_Write21(char c) {
  LCD_SET_A0();
  LCD_CLR_CS2();
  LCD_X_WRITE(c);
  LCD_SET_CS2();
}

#endif /* LCD_CLR_CS2 */