lcd.h

这是Mega8I2c通讯时的主机访问程序.

#ifndef _LCD_H_
#define _LCD_H_

/*==================================================*/
/*引脚定义：
		D0 <-->PB0
		D1 <-->PB1
		D2 <-->PB2
		D3 <-->PB3
		D4 <-->PB4
		D5 <-->PB5
		D6 <-->PB6
  	D7 <-->PB7
		RS <-->PC0
		WE <-->PC1
		E  <-->PC2  */
#define DATA0	PB0
#define DATA1	PB1
#define DATA2	PB2
#define DATA3	PB3
#define DATA4	PB4
#define DATA5	PB5
#define DATA6	PB6
#define DATA7	PB7
#define RS		PC0
#define RW		PC1
#define	E_LCD	PC2

void lcd_init(void);
void write_command(uint8_t c);
void write_data(uint8_t c);
void wait_free(void);
void putchar_lcd(uint8_t *p);
void write_over(void);

#endif