lm041_4bit.c

单片机c语言程序设计100例--基于PIC+PROTEUS

//-----------------------------------------------------------------
//  名称: 工作于4位模式LM041驱动程序(16*4)
//-----------------------------------------------------------------
#include <pic.h>
#include "LM041_4BIT.h"
//-----------------------------------------------------------------
// 液晶初始化
//-----------------------------------------------------------------
void LCD_Initialize()
{
    TRIS_LCD_DAT = 0x00;				//设置液晶端口为输出
    Write_LCD_Command(LCD_SETFUNCTION + 0x12); __delay_ms(1);
    Write_LCD_Command(LCD_SETFUNCTION + 0x08); __delay_ms(1);//4位模式,5x7点阵
    Write_LCD_Command(LCD_SETVISIBLE  + 0x04); __delay_ms(1);//不显示光标,不闪烁
    Write_LCD_Command(LCD_SETMODE     + 0x02); __delay_ms(1);//自动递增   
    Write_LCD_Command(LCD_SETDDADDR);          __delay_ms(1);//DDRAM偏移地址0x80
}

//-----------------------------------------------------------------
// 清除屏幕
//-----------------------------------------------------------------
void ClearScreen()
{ 


}

//-----------------------------------------------------------------
// 写LCD命令
//-----------------------------------------------------------------
void Write_LCD_Command(char cmd)
{


}

//-----------------------------------------------------------------
// 写LCD数据
//-----------------------------------------------------------------
void Write_LCD_Data(char dat)
{


}

//-----------------------------------------------------------------
// LCD忙等待
//-----------------------------------------------------------------
void LCD_BUSY_WAIT()
{


}

//-----------------------------------------------------------------
// 设置显示位置
//-----------------------------------------------------------------
void Set_LCD_POS(INT8U r, INT8U c)
{


}

//-----------------------------------------------------------------
// 显示字符串
//-----------------------------------------------------------------
void LCD_ShowString(INT8U r, INT8U c,char *str)
{


}