/* * LCD interface header file * See lcd.c for more info * * Copywrite Craig Lee 1998 */ /* write a byte to the LCD in 4 bit mode */ extern void lcd_write(unsigned char); /* Clear and home the LCD */ extern void lcd_clear(void); /* write a string of characters to the LCD */ extern void lcd_puts(const char * s); /* Go to the specified position */ extern void lcd_goto(unsigned char pos); /* intialize the LCD - call before anything else */ extern void lcd_init(void); extern void lcd_putch(char); /* Set the cursor position */ #define lcd_cursor(x) lcd_write(((x)&0x7F)|0x80) #define LINE1 0x00 /* position of line1 */ #define LINE2 0x40 /* position of line2 */
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