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93 lines
2.9 KiB
C
93 lines
2.9 KiB
C
14 years ago
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#ifndef LCD_H
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#define LCD_H
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/***********************************************************************************
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FILE NAME lcd.h
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DESCRIPTION Driver for KS0066u LCD Module Controller (8 characters by 2 lines )
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on the Renesas RSK boards - header file
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Copyright : 2006 Renesas Technology Europe Ltd.
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Copyright : 2006 Renesas Technology Corporation.
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All Rights Reserved
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***********************************************************************************/
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/***********************************************************************************
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Revision History
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DD.MM.YYYY OSO-UID Description
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26.07.2006 RTE-MBA First Release
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***********************************************************************************/
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void InitialiseDisplay( void );
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void DisplayString(unsigned char position, char * string);
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void LCD_write(unsigned char data_or_ctrl, unsigned char value);
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void LCD_nibble_write(unsigned char data_or_ctrl, unsigned char value);
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void DisplayDelay(unsigned long int units);
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#define SET_BIT_HIGH (1)
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#define SET_BIT_LOW (0)
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#define SET_BYTE_HIGH (0xFF)
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#define SET_BYTE_LOW (0x00)
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struct _LCD_Params {
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unsigned char Line;
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unsigned short Speed;
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char *ptr_str;
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};
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/* RS Register Select pin */
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#define RS_PIN PORTJ.PODR.BIT.B1
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/* Display Enable pin */
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#define EN_PIN PORTJ.PODR.BIT.B3
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/* Data bus port */
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#define DATA_PORT PORTH.PODR.BYTE
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/* Bit mask from entire port */
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#define DATA_PORT_MASK 0x0F
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/* Number of bits data needs to shift */
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#define DATA_PORT_SHIFT 0
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#define DATA_WR 1
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#define CTRL_WR 0
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/* Set to ensure base delay of 1microS minimum */
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//#define DELAY_TIMING 0x2F
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#define DELAY_TIMING 50
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/* number of lines on the LCD display */
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#define NUMB_CHARS_PER_LINE 8
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/* Maximum charactors per line of LCD display. */
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#define MAXIMUM_LINES 2
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#define LCD_LINE1 0
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#define LCD_LINE2 16
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/**********************************************************************************/
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/* LCD commands - use LCD_write function to write these commands to the LCD. */
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/**********************************************************************************/
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/* Clear LCD display and home cursor */
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#define LCD_CLEAR 0x01
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/* move cursor to line 1 */
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#define LCD_HOME_L1 0x80
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/* move cursor to line 2 */
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#define LCD_HOME_L2 0xC0
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/* Cursor auto decrement after R/W */
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#define CURSOR_MODE_DEC 0x04
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/* Cursor auto increment after R/W */
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#define CURSOR_MODE_INC 0x06
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/* Setup, 4 bits,2 lines, 5X7 */
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#define FUNCTION_SET 0x28
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/* Display ON with Cursor */
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#define LCD_CURSOR_ON 0x0E
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/* Display ON with Cursor off */
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#define LCD_CURSOR_OFF 0x0C
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/* Display on with blinking cursor */
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#define LCD_CURSOR_BLINK 0x0D
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/*Move Cursor Left One Position */
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#define LCD_CURSOR_LEFT 0x10
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/* Move Cursor Right One Position */
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#define LCD_CURSOR_RIGHT 0x14
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#define LCD_DISPLAY_ON 0x04
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#define LCD_TWO_LINE 0x08
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#endif
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