LCD的静态显示

来源：互联网发布：刷枪软件编辑：程序博客网时间：2024/06/05 17:32
/*-----------------------------------------------  名称：LCD1602  内容：通过标准程序静态显示字符  引脚定义如下：1-VSS 2-VDD 3-V0 4-RS 5-R/W 6-E 7-14 DB0-DB7 15-BLA 16-BLK------------------------------------------------*/#include<reg52.h> //包含头文件，一般情况不需要改动，头文件包含特殊功能寄存器的定义#include<intrins.h>sbit RS = P2^4;   //定义端口 sbit RW = P2^5;sbit EN = P2^6;#define RS_CLR RS=0 #define RS_SET RS=1#define RW_CLR RW=0 #define RW_SET RW=1 #define EN_CLR EN=0#define EN_SET EN=1#define DataPort P0/*------------------------------------------------ uS延时函数，含有输入参数 unsigned char t，无返回值 unsigned char 是定义无符号字符变量，其值的范围是 0~255 这里使用晶振12M，精确延时请使用汇编,大致延时 长度如下 T=tx2+5 uS ------------------------------------------------*/void DelayUs2x(unsigned char t){    while(--t);}/*------------------------------------------------ mS延时函数，含有输入参数 unsigned char t，无返回值 unsigned char 是定义无符号字符变量，其值的范围是 0~255 这里使用晶振12M，精确延时请使用汇编------------------------------------------------*/void DelayMs(unsigned char t){ while(t--) {     //大致延时1mS     DelayUs2x(245);     DelayUs2x(245); }}/*------------------------------------------------              判忙函数------------------------------------------------*/ bit LCD_Check_Busy(void)  {  DataPort= 0xFF;  RS_CLR;  RW_SET;  EN_CLR;  _nop_();  EN_SET; return (bit)(DataPort & 0x80); }/*------------------------------------------------              写入命令函数------------------------------------------------*/ void LCD_Write_Com(unsigned char com)  {  // while(LCD_Check_Busy()); //忙则等待 DelayMs(5); RS_CLR;  RW_CLR;  EN_SET;  DataPort= com;  _nop_();  EN_CLR; }/*------------------------------------------------              写入数据函数------------------------------------------------*/ void LCD_Write_Data(unsigned char Data)  {  //while(LCD_Check_Busy()); //忙则等待 DelayMs(5); RS_SET;  RW_CLR;  EN_SET;  DataPort= Data;  _nop_(); EN_CLR; }/*------------------------------------------------                清屏函数------------------------------------------------*/ void LCD_Clear(void)  {  LCD_Write_Com(0x01);  DelayMs(5); }/*------------------------------------------------              写入字符串函数------------------------------------------------*/ void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)  {      if (y == 0)     {          LCD_Write_Com(0x80 + x);     //表示第一行    } else     {          LCD_Write_Com(0xC0 + x);      //表示第二行    }         while (*s)     {      LCD_Write_Data( *s);      s ++;         } }/*------------------------------------------------              写入字符函数------------------------------------------------*/ void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data)  {      if (y == 0)     {         LCD_Write_Com(0x80 + x);         }     else     {         LCD_Write_Com(0xC0 + x);         }         LCD_Write_Data( Data);   }/*------------------------------------------------              初始化函数------------------------------------------------*/ void LCD_Init(void)  {   LCD_Write_Com(0x38);    /*显示模式设置*/    DelayMs(5);    LCD_Write_Com(0x38);    DelayMs(5);    LCD_Write_Com(0x38);    DelayMs(5);    LCD_Write_Com(0x38);     LCD_Write_Com(0x08);    /*显示关闭*/    LCD_Write_Com(0x01);    /*显示清屏*/    LCD_Write_Com(0x06);    /*显示光标移动设置*/    DelayMs(5);    LCD_Write_Com(0x0C);    /*显示开及光标设置*/   }/*------------------------------------------------                    主函数------------------------------------------------*/ void main(void) { LCD_Init(); LCD_Clear();//清屏while (1)  {    LCD_Write_String(1,0,"0x32");  LCD_Write_String(1,1,"Archer")；  while(1); }}
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