单片机主从机通讯叫号系统protues仿真与源码 -

/*-----------------------------------------------
名称：LCD1602
修改：无
内容：
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
------------------------------------------------*/
/*------------------------------------------------
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
------------------------------------------------*/
#include<reg52.h>
#include<intrins.h>
#include<stdio.h>
#define CHECK_BUSY
sbit RS = P2^4; //定义端口
sbit RW = P2^5;
sbit EN = P2^6;
sbit key1=P1^0; //VIP 按键
sbit key2=P1^1; //普通按键
sbit key3=P1^2; //对公按键
sbit key4=P1^3; //业务选择按键
float num0,num1,num2;
int num3;
#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
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)
{
#ifdef CHECK_BUSY
DataPort= 0xFF;
RS_CLR;
RW_SET;
EN_CLR;
_nop_();
EN_SET;
return (bit)(DataPort & 0x80);
#else
return 0;
#endif
}
/*------------------------------------------------
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 ++;
}
}
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*/
}
void VIPdisplay()
{
char displaytemp[16];//定义显示区域临时存储数组
if(key1==0)
{
DelayMs(20);
if(key1==0)
{
num0=num0+1;
LCD_Write_String(0,0,"window1");
sprintf(displaytemp,"VIP % 7.0f ",num0);//打印数值
LCD_Write_String(0,1,displaytemp);//显示第二行
}
if(num0==100)
{
LCD_Write_String(0,0,"Please wait!");
num0=0;
}
while(!key1);
DelayMs(20);
while(!key1);
}
}
void PUdisplay()
{
char displaytemp[16];//定义显示区域临时存储数组
if(key2==0)
{
DelayMs(20);
if(key2==0)
{
num1=num1+1;
LCD_Write_String(0,0,"window2");
sprintf(displaytemp,"general % 7.0f",num1);//打印数值
LCD_Write_String(0,1,displaytemp);//显示第二行
}
if(num1==100)
{
LCD_Write_String(0,0,"Please wait!");
num1=0;
}
while(!key2);
DelayMs(20);
while(!key2);
}
}
void Dgdisplay()
{
char displaytemp[16];//定义显示区域临时存储数组
if(key3==0)
{
DelayMs(20);
if(key3==0)
{
num2=num2+1;
LCD_Write_String(0,0,"window3");
sprintf(displaytemp,"public % 7.0f",num2);//打印数值
LCD_Write_String(0,1,displaytemp);//显示第二行
}
if(num2==100)
{
LCD_Write_String(0,0,"Please wait!");
num2=0;
}
while(!key3);
DelayMs(20);
while(!key3);
……………………
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