lcd.h

基于AM1单片机的一个RS232串口的通讯程序

#ifndef		_LCD_H_
#define		_LCD_H_

#define LCD_RS			P6.OUT.BIT.B0	/* LCD RS OUTPUT BIT */
#define LCD_RW			P5.OUT.BIT.B0	/* LCD R/W OUTPUT BIT */
#define LCD_STB			P5.OUT.BIT.B2	/* LCD E OUTPUT BIT */
#define LCD_DATA		P8.OUT.BYTE		/* LCD DATA OUTPUT PORT */


#define LCD_WAIT_1MS	154-1			/* compare value : 1.00ms */
#define LCD_WAIT_40US	7-1				/* compare value : 45.57us */


void lcd_init(void);
void lcd_clear(void);
void lcd_puts(char *data, char line, char cursor);
void lcd_set_cursor(char line, char cursor);
void lcd_put_cmd(char cmd);
void lcd_put_data(char data);
void wait_ms(int time);
void lcd_wait(void);

#endif		/* _LCD_H_ */