lm041_4bit.h

来自「单片机c语言程序设计100例--基于PIC+PROTEUS」· C头文件 代码 · 共 35 行

//-----------------------------------------------------------------
//  名称: 1602液晶头文件
//-----------------------------------------------------------------
#define INT8U   unsigned char
#define INT16U  unsigned int
#define _XTAL_FREQ 4000000UL
//LCD命令   
#define LCD_CLS           0x01
#define LCD_HOME          0x02
#define LCD_SETMODE       0x04
#define LCD_SETVISIBLE    0x08
#define LCD_SHIFT         0x10
#define LCD_SETFUNCTION   0x20
#define LCD_SETCGADDR     0x40
#define LCD_SETDDADDR     0x80

//LCD数据与方向端口定义
#define PORT_LCD_DAT     PORTD
#define TRIS_LCD_DAT     TRISD

//LCD控制引脚
#define RS  RD0
#define RW  RD1
#define E   RD2 
//-----------------------------------------------------------------
// 函数声明
//----------------------------------------------------------------- 
void LCD_Initialize();
void LCD_BUSY_WAIT();
void ClearScreen();
void Write_LCD_Command (char data);
void Write_LCD_Data(char data);
void Set_LCD_POS(INT8U r, INT8U c);
void LCD_ShowString(INT8U r, INT8U c,char *str);