st7920.h

基于ARM的电梯控制程序

#ifndef  __ST7920_H
#define  __ST7920_H

#define ST7920_Cs 			0x00010000		//P1.16
#define ST7920_Clk			0x00040000 	    //P1.18
#define ST7920_Sda			0x00020000		//P1.17
#define ST7920_Rst			0x00080000		//P1.19

#define off_cursor        	0x0c    		//关光标
#define on_cursor        	0x0e     		//开光标
#define DDRAM_0           	0x80     		//显示回位
#define off_cursor_filsh 	0x0e    		//光标关闪烁
#define on_cursor_filsh 	0x0f     		//光标开闪烁

extern void Delay(uint16 n);
extern void SendCmd(uint8 dat);
extern void SendDat(uint8 dat);
extern void DispChars(uint8 Addr,uint8 *p,uint8 Num);
extern void Display(uint8 x_add,uint8 high,uint8 low);
extern void InitLcm(void);
extern void DispChar(uint8 x_addr, uint8 data);
//extern	void 	PreDisp(uint16 data,uint8 *p);
extern	void PreDispOutdoorCallUp(uint8 *data,uint8 *p);
extern	void PreDispOutdoorCallDown(uint8 *data,uint8 *p);
extern	void PreDispIndoorCall(uint8 *data,uint8 *p);

extern void lcdclr(void);
extern void Disp(uint8 x_addr, uint8 *p);

#endif