drv_hd44780.h

深圳优龙公司LPC2148开发板（与iar公司开发板基本相同）的原理图和配套样例程序

/*************************************************************************
 *
 *    Used with ICCARM and AARM.
 *
 *    (c) Copyright IAR Systems 2003
 *
 *    File name   : config.h
 *    Description : Define common defenition
 *
 *    History :
 *    1. Data   	 : Feb 10, 2005
 *  	 Author 	 : Stanimir Bonev
 *  	 Description : Create
 *
 *    $Revision: 1.1 $
 **************************************************************************/

#ifndef  __DRV_HD44780
#define  __DRV_HD44780
#include "includes.h"

typedef LPC_INT8U HD44780_XY_DEF;
typedef LPC_INT8S HD44780_STRING_DEF;

/* Max DDRAM Address */
#define HD44780_MAX_DDRAM   	  0x67
/* Max CGRAM Address */
#define HD44780_MAX_CGRAM   	  0x3F
/* Address counter auto increment/decrement definition */
#define HD44780_AC_DECREMENT	  0
#define HD44780_AC_INCREMENT	  1
/* Auto Display shift or cursor move definition */
#define HD44780_CURSOR_MOVE 	  0
#define HD44780_DISPLAY_SHIFT     1
/* MCU interface definition */
#define HD44780_4_BIT   		  0
#define HD44780_8_BIT   		  1
/* Number of line 1/2 definition */
#define HD44780_1_LINE  		  0
#define HD44780_2_LINE  		  1
/* Dot 5x8 or 5x10 definition */
#define HD44780_DOT_5_8 		  0
#define HD44780_DOT_5_10		  1
/* Dispaly On/Off definition */
#define HD44780_DISPLAY_OFF 	  0
#define HD44780_DISPLAY_ON  	  1
/* Cursor On/Off definition */
#define HD44780_CURSOR_OFF  	  0
#define HD44780_CURSOR_ON   	  1
/* Cursor Blink definition */
#define HD44780_CURSOR_NORM 	  0
#define HD44780_CURSOR_BLINK	  1

/* Delay macro */
#define HD44780_BUS_DLY()      for(int dly = 8;dly;--dly)

typedef struct
{
	LPC_INT8U DiplayPos;
	LPC_INT16U AC_Direction : 1;
	LPC_INT16U DisplayShift : 1;
	LPC_INT16U Interface : 1;
	LPC_INT16U Line : 1;
	LPC_INT16U DotMode : 1;
	LPC_INT16U DisplayOn : 1;
	LPC_INT16U CursorOn : 1;
	LPC_INT16U CursorBlink : 1;
} HD44780_CTRL_DEF;

typedef enum
{
	HD44780_OK					= 0 ,
	HD44780_BUSY_TO_ERROR ,
	HD44780_ERROR ,
	HD44780_OUT_OF_VISUAL,
} HD44780_ERROR_CODE_DEF;

HD44780_ERROR_CODE_DEF HD44780_PowerUpInit( void );
HD44780_CTRL_DEF* HD44780_GetSetting( void );
HD44780_ERROR_CODE_DEF HD44780_SetMode( void );
HD44780_ERROR_CODE_DEF HD44780_ClearDisplay( void );
HD44780_ERROR_CODE_DEF HD44780_ReturnToHome( void );
HD44780_ERROR_CODE_DEF HD44780_DisplayShift( LPC_BOOL DisplayOn , LPC_INT8S DiplayShift );
HD44780_ERROR_CODE_DEF HD44780_CursorPosSet( LPC_BOOL CursorOn , LPC_BOOL CursorBlink , HD44780_XY_DEF X ,
	HD44780_XY_DEF Y );
HD44780_ERROR_CODE_DEF HD44780_RdCGRAM( HD44780_STRING_DEF* CG_Data , LPC_INT8U CGRAM_Add );
HD44780_ERROR_CODE_DEF HD44780_WrCGRAM( const HD44780_STRING_DEF* CG_Data , LPC_INT8U CGRAM_Add );
HD44780_ERROR_CODE_DEF HD44780_StrShow( HD44780_XY_DEF X , HD44780_XY_DEF Y , const HD44780_STRING_DEF* DataStr );
void LCD1602_Test( void ) ;

extern void Dly100us( void* arg );

#endif  /* __DRV_HD44780 */