lcd1602.c

单片机C语言程序设计实训100例--基于AVR+PROTEUS仿真

//-----------------------------------------------------------------
// 名称: 液晶控制与显示程序
//-----------------------------------------------------------------
#include <avr/io.h>
#include <util/delay.h>
#define INT8U   unsigned char
#define INT16U  unsigned int

//LCD控制引脚定义
#define RS_1() PORTD |=  (1<<PD0)
#define RS_0() PORTD &= ~(1<<PD0)
#define RW_1() PORTD |=  (1<<PD1)
#define RW_0() PORTD &= ~(1<<PD1)
#define EN_1() PORTD |=  (1<<PD2)
#define EN_0() PORTD &= ~(1<<PD2)

//LCD端口定义
#define LCD_PORT  PORTC                     //发送LCD数据端口
#define LCD_PIN   PINC                      //接收LCD数据端口
#define LCD_DDR   DDRC                      //LCD端口方向数据
//-----------------------------------------------------------------
// LCD忙等待 
//-----------------------------------------------------------------
void LCD_BUSY_WAIT()
{


}

//-----------------------------------------------------------------
// 写LCD命令寄存器
//-----------------------------------------------------------------
void Write_LCD_Command(INT8U cmd)
{


}

//-----------------------------------------------------------------
// 写LCD数据寄存器
//-----------------------------------------------------------------
void Write_LCD_Data(INT8U dat)
{


}

//-----------------------------------------------------------------
// 自定义字符写CGRAM 
//-----------------------------------------------------------------
void Write_NEW_LCD_Char()  
{  


}

//-----------------------------------------------------------------
// LCD初始化
//-----------------------------------------------------------------
void Initialize_LCD()
{


}

//-----------------------------------------------------------------
// 设置显示位置
//-----------------------------------------------------------------
void Set_LCD_POS(INT8U x, INT8U y)
{ 


}

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


}