#include??	?
#include??	?

#define?XTAL?	??????????11059200?	//?CPU振蕩頻率	?
#define?baudrate?	??????9600?	????//?波特率	?
#define?ILEN?	??????????8?	????//?接收緩沖區(qū)大小?	?	?
unsigned?char?	istart;?	????????//?接收緩沖區(qū)起始?	?
unsigned?char?	iend;?	????????????//?接收緩沖區(qū)末尾?
char?idata?	inbuf[ILEN];?	????????//?接收緩沖區(qū)	?
bit??have_data_arrive;??????????????//有數(shù)據(jù)被接收，用于同步顯示
unsigned?char?ipos=0;???????????????//當前接收的數(shù)據(jù)在緩沖區(qū)的位置
//顯示位控制
sbit?L=P1^0;?//4常0????????????????????????
sbit?R=P1^1;?//3
sbit?L1=P1^2;//2
sbit?R1=P1^3;//1
//定義表格
unsigned?char?code?table[10]={0x3f0x060x5b0x4f0x660x6d0x7d0x070x7f0x6f};??//共陰極段碼表

//延時函數(shù)
void?delay（unsigned?char?nms）
{
???unsigned?char?xy;
???for（x=0;x??????for（y=0;y<110;y++）;
}

//數(shù)碼顯示
void?display_2（unsigned?char?dd）
{
????R=L=L1=R1=1;

????L=1;
	//P0=table[0];
	//delay（1）;
	//L=1;
	R=0;
	P0=table[（dd/100）%10];
	delay（1）;
	R=1;
	L1=0;
	P0=table[（dd/10）%10];
	delay（1）;
	L1=1;
	R1=0;
	P0=table[dd%10];
	delay（1）;
	R1=1;
}


//接收中斷例程
static?void?com_isr?（void）?interrupt?4?using?1?	
{?
	?
	char?c;?
	//數(shù)據(jù)接收中斷
	if?（RI）?	
	{?	?
		c?=?SBUF;?	//?讀數(shù)據(jù)
		
		RI?=?0;?	//?清除中斷標志	?
		ipos=iend?&?（ILEN-1）;//存放位置
	????iend++;??????????????//調(diào)整指針
		if?（istart?+?ILEN?!=?iend）?//緩沖區(qū)未用完	
		{?

		???inbuf[ipos]?=?c;?	//?寫入數(shù)據(jù)到接收緩沖區(qū)?
	?	???have_data_arrive=1;??//告訴主程序，接收數(shù)據(jù)準備好，可以開始顯示了

		}?		?
	}?			?
	
}?

//串口初始化	?
void?com_initialize?（void）?	
{?	?
	istart?=?0;?	//?清空緩沖區(qū)?
	iend?=?0;?	
	have_data_arrive=0;//沒有數(shù)據(jù)?

	//?配置T1作為波特率發(fā)生器
	PCON?|=?0x80;?	//?波特率加倍	?
	TMOD?|=?0x20;?//?T1方式2，自動重裝	?
	TH1?=?（unsigned?char）?（256?-（XTAL?/?（16L?*?12L?*?baudrate）））;?	?
	TR1?=?1;?	//?啟動T1?	?
	SCON?	=?0x50;//串口方式1，允許接收
	ES?=?1;?	//?允許串行中斷
}?			?
	
?	?
void?main?（void）?	
{?		?
	?
	com_initialize?（）;?//初始化串口
????EA?=?1;?		???//開總中斷
	while（!have_data_arrive）;//等待數(shù)據(jù)到來
	while?（1）?	
	{?		
?????????//顯示接收到的數(shù)據(jù)
		?display_2（inbuf[ipos?]）;
	}?	?
}?	?

?屬性????????????大小?????日期????時間???名稱
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?????文件???????2580??2009-12-30?16:53??89C51雙機通信proteus仿真\send\send.c

?????文件????????524??2010-05-09?09:57??89C51雙機通信proteus仿真\send\send.plg

?????文件?????????40??2010-05-09?09:57??89C51雙機通信proteus仿真\send\send.lnp

?????文件???????7107??2010-05-09?09:57??89C51雙機通信proteus仿真\send\send.M51

?????文件???????6295??2010-05-09?09:57??89C51雙機通信proteus仿真\send\send.LST

?????文件???????5292??2010-05-09?09:57??89C51雙機通信proteus仿真\send\send.OBJ

?????文件???????4596??2010-05-09?09:57??89C51雙機通信proteus仿真\send\send

?????文件????????600??2010-05-09?09:57??89C51雙機通信proteus仿真\send\send.hex

????.......?????????0??2010-05-09?09:56??89C51雙機通信proteus仿真\send\send_Uv2.Bak

?????文件???????1985??2010-05-09?09:57??89C51雙機通信proteus仿真\send\send.Uv2

?????文件????????956??2010-05-09?09:57??89C51雙機通信proteus仿真\send\send.Opt

?????文件???????2209??2009-12-30?17:21??89C51雙機通信proteus仿真\receive\rcv.c

?????文件????????373??2010-05-09?10:03??89C51雙機通信proteus仿真\receive\receive.plg

?????文件???????5172??2010-05-09?09:57??89C51雙機通信proteus仿真\receive\rcv.LST

?????文件???????5567??2010-05-09?09:57??89C51雙機通信proteus仿真\receive\rcv.OBJ

?????文件?????????42??2010-05-09?09:57??89C51雙機通信proteus仿真\receive\receive.lnp

?????文件???????6823??2010-05-09?09:57??89C51雙機通信proteus仿真\receive\receive.M51

?????文件???????5078??2010-05-09?09:57??89C51雙機通信proteus仿真\receive\receive

?????文件???????1079??2010-05-09?09:57??89C51雙機通信proteus仿真\receive\receive.hex

????.......?????????0??2010-05-09?09:57??89C51雙機通信proteus仿真\receive\receive_Uv2.Bak

?????文件???????1975??2010-05-09?10:03??89C51雙機通信proteus仿真\receive\receive.Uv2

?????文件????????950??2010-05-09?10:03??89C51雙機通信proteus仿真\receive\receive.Opt

?????文件??????90310??2009-12-30?17:01??89C51雙機通信proteus仿真\Last?Loaded?vterminal.DBK

?????文件??????90579??2010-05-09?10:03??89C51雙機通信proteus仿真\vterminal.DSN

?????文件???????1105??2010-05-09?10:03??89C51雙機通信proteus仿真\vterminal.PWI

?????目錄??????????0??2010-05-09?09:46??89C51雙機通信proteus仿真\send

?????目錄??????????0??2010-05-09?09:55??89C51雙機通信proteus仿真\receive

?????目錄??????????0??2010-05-09?09:41??89C51雙機通信proteus仿真

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???????????????241237????????????????????28

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