1、通用 LCD1602程序2009-08-31 19:02今天忙活了半天终于把 1602这个程序搞定了.参考了一下我单片机赠送 vcd中的程序.主要分两部分.1602LIB.h和 1602LIB.c1602lib.h这个库的好处就是只用修改 1602LIB.h中关于相关端口的定义.就是 DEFINE PORT HERE下面的./=1602lib.h=/* 1602 LCD LIB * COPYLEFT (c) 2009 BY HUB. * * File Name: 1602LIB.h * Author: hub * * Created: 2009.8.31 * Revision: 1.0 * *
2、/#ifndef _LCD1602_H_#define _LCD1602_H_/DEFINE PORT HERE/#define LCDIO P0 sbit LCD_RS=P30; sbit LCD_RW=P31; sbit LCD_EN=P32;sbit LCD_BUSY=LCDIO7;/*/DONT MODIFY ANYTHING BELOW!/DONT MODIFY ANYTHING BELOW!/DONT MODIFY ANYTHING BELOW!/*/输入方式设置#define LCD_AC_AUTO_INCREMENT 0x06 /数据读、写操作后，AC 自动增一#define
3、LCD_AC_AUTO_DECREASE 0x04 /数据读、写操作后，AC 自动减一#define LCD_MOVE_ENABLE 0x05 /数据读、写操作，画面平移#define LCD_MOVE_DISENABLE 0x04 /数据读、写操作，画面不动#define LCD_GO_HOME 0x02 /AC=0，光标、画面回 HOME位/设置显示、光标及闪烁开、关#define LCD_DISPLAY_ON 0x0C /显示开#define LCD_DISPLAY_OFF 0x08 /显示关#define LCD_CURSOR_ON 0x0A /光标显示#define LCD_CURS
4、OR_OFF 0x08 /光标不显示#define LCD_CURSOR_BLINK_ON 0x09 /光标闪烁#define LCD_CURSOR_BLINK_OFF 0x08 /光标不闪烁/光标、画面移动，不影响 DDRAM#define LCD_LEFT_MOVE 0x18 /LCD显示左移一位#define LCD_RIGHT_MOVE 0x1C /LCD显示右移一位#define LCD_CURSOR_LEFT_MOVE 0x10 /光标左移一位#define LCD_CURSOR_RIGHT_MOVE 0x14 /光标右移一位/工作方式设置#define LCD_DISPLAY_D
5、OUBLE_LINE 0x38 /两行显示#define LCD_DISPLAY_SINGLE_LINE 0x30 /单行显示#define LCD_CLEAR_SCREEN 0X01 /清屏/LCD1602地址相关#define LINE1_HEAD 0x80 / 第一行 DDRAM起始地址 #define LINE2_HEAD 0xc0 / 第二行 DDRAM起始地址#define LINE1 0 /第一行#define LINE2 1 /第二行#define LINE_LENGTH 16 /每行的最大字符长度#define HIGH 1#define LOW 0 #define TURE
6、 1#define FALSE 0#define uchar unsigned char#define uint unsigned int/*/*DEFINE FUNCTION /*/void LCD_init(void); void LCD_send_command(uchar command); void LCD_send_data(uchar dat);void LCD_write_char(uchar x,uchar y,uchar dat);void LCD_disp_string(uchar x,uchar y,char *Data);void delay_ms(uchar n);
7、void LCD_check_busy(void);#endif/=1602lib.c=#include #include #include “1602LIB.h“void main(void)uchar str1=“1602 LCD LIB“;/uchar str2=“POWER BY istry“;uchar *pStr=str1;LCD_init();while(1)LCD_send_command(LCD_CLEAR_SCREEN);delay_ms(10);LCD_disp_string(0,0,pStr);/LCD_disp_string(0,1,str2);delay_ms(10
8、0);pStr+;if(*pStr=0)pStr=str1;void LCD_init(void)LCD_send_command(LCD_DISPLAY_DOUBLE_LINE);LCD_send_command(LCD_AC_AUTO_INCREMENT|LCD_MOVE_DISENABLE);LCD_send_command(LCD_DISPLAY_ON|LCD_CURSOR_OFF);LCD_send_command(LCD_CLEAR_SCREEN); void LCD_send_command(uchar command)LCD_check_busy();LCD_RS=LOW;LC
9、D_RW=LOW;LCD_EN=HIGH;LCDIO=command;LCD_EN=LOW;void LCD_send_data(uchar dat)LCD_check_busy();LCD_RS=HIGH;LCD_RW=LOW;LCD_EN=HIGH;LCDIO=dat;LCD_EN=LOW;void LCD_write_char(uchar x,uchar y,uchar dat)unsigned char address;if (y = LINE1) address = LINE1_HEAD + x;else address = LINE2_HEAD + x;LCD_send_command(address); LCD_send_data(dat);/* 参数:y-行数* */void LCD_disp_string(uchar x,uchar y,uchar *Data)if(y=LINE1)if(x0;i-)for(j=0;j1140;j+);*/void LCD_check_busy(void)doLCD_EN=0;LCD_RS=0;LCD_RW=1;LCDIO=0xff;LCD_EN=1;while(LCD_BUSY=1);LCD_EN=0;/=end=
