alt_up_character_lcd_regs.h

这是一个 NIOSII系统的 1602LCD 控制IP核

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#ifndef __ALT_UP_CHARACTER_LCD_REGS_H__
#define __ALT_UP_CHARACTER_LCD_REGS_H__

#include <io.h>

/*
 * Control Register (When RS = 0)
 * (In the document, we used the name Instruction Register)
 */
#define ALT_UP_CHARACTER_LCD_CONTROL_REG               0
#define IOADDR_ALT_UP_CHARACTER_LCD_CONTROL(base)      \
        __IO_CALC_ADDRESS_NATIVE(base, ALT_UP_CHARACTER_LCD_CONTROL_REG)
#define IORD_ALT_UP_CHARACTER_LCD_CONTROL(base)        \
        IORD(base, ALT_UP_CHARACTER_LCD_CONTROL_REG)
#define IOWR_ALT_UP_CHARACTER_LCD_CONTROL(base, data)  \
        IOWR(base, ALT_UP_CHARACTER_LCD_CONTROL_REG, data)

//#define ALT_UP_CHARACTER_LCD_CONTROL_MSK			    (0x000000FF)
//#define ALT_UP_CHARACTER_LCD_CONTROL_OFST			    (0x00000000)

// Clear Display
#define	ALT_UP_CHARACTER_LCD_CTRL_CLEAR_DISPLAY			(0x00000001)
// Return Home
#define	ALT_UP_CHARACTER_LCD_CTRL_RETURN_HOME			(0x00000002)
//Entry Mode 
#define	ALT_UP_CHARACTER_LCD_CTRL_ENTRY_DIR_RIGHT		(0x00000006)
#define	ALT_UP_CHARACTER_LCD_CTRL_ENTRY_DIR_LEFT 		(0x00000004)
#define	ALT_UP_CHARACTER_LCD_CTRL_ENTRY_SHIFT_ENABLE	(0x00000005)
#define	ALT_UP_CHARACTER_LCD_CTRL_ENTRY_SHIFT_DISABLE	(0x00000004)

// Display ON/OFF Control
#define	ALT_UP_CHARACTER_LCD_CTRL_DISPLAY_ON			(0x0000000C)
#define	ALT_UP_CHARACTER_LCD_CTRL_CURSOR_ON				(0x0000000E)
#define	ALT_UP_CHARACTER_LCD_CTRL_CURSOR_BLINK_ON		(0x0000000F)

#define	ALT_UP_CHARACTER_LCD_CTRL_DISPLAY_OFF			(0x00000008)

#define	ALT_UP_CHARACTER_LCD_CTRL_CURSOR_OFF			(0x0000000C) //equivalent to ALT_UP_CHARACTER_LCD_CTRL_DISPLAY_ON
#define	ALT_UP_CHARACTER_LCD_CTRL_CURSOR_BLINK_OFF		(0x0000000E) //equivalent to ALT_UP_CHARACTER_LCD_CTRL_CURSOR_ON

// Cursor/Display Shift
// cause the entire display to move to left or right (the origin of the display is also changed)
#define	ALT_UP_CHARACTER_LCD_CTRL_DISPLAY_SHIFT_RIGHT	(0x0000001C)
#define	ALT_UP_CHARACTER_LCD_CTRL_DISPLAY_SHIFT_LEFT	(0x00000018)
// move the cursor to left or right
#define	ALT_UP_CHARACTER_LCD_CTRL_CURSOR_SHIFT_RIGHT	(0x00000014)
#define	ALT_UP_CHARACTER_LCD_CTRL_CURSOR_SHIFT_LEFT		(0x00000010)

/* 
 * Data Register (When RS = 1)
 */
#define ALT_UP_CHARACTER_LCD_DATA_REG                  1
#define IOADDR_ALT_UP_CHARACTER_LCD_DATA(base)         \
        __IO_CALC_ADDRESS_NATIVE(base, ALT_UP_CHARACTER_LCD_DATA_REG)
#define IORD_ALT_UP_CHARACTER_LCD_DATA(base)           \
        IORD(base, ALT_UP_CHARACTER_LCD_DATA_REG) 
#define IOWR_ALT_UP_CHARACTER_LCD_DATA(base, data)     \
        IOWR(base, ALT_UP_CHARACTER_LCD_DATA_REG, data)

//#define ALT_UP_CHARACTER_LCD_DATA_MSK             		(0x000000FF)
//#define ALT_UP_CHARACTER_LCD_DATA_OFST            		(0)


#endif /* __ALT_UP_CHARACTER_LCD_REGS_H__ */