pc到PLC的串口通讯程序源码 有详细的注释

vc下的socket编程实例，如何来创建客户端和服务器端-vc under the socket programming examples of how to create client-side and server-side

呼叫阻塞率的计算和仿真：在时间轴上考虑。无论阻塞与否，下一呼叫到达时刻为当前呼叫到达时刻加上服从参数为1/λ的指数分布的呼叫间隔时间。一个呼叫到达时只需要判断呼叫的到达时刻和各个信道服务完成时刻的先后：如果前者比后者中任意一个大，说明至少有一个信道服务完成时刻比此呼叫到达时刻早，即此信道空闲，此时呼叫成功，应该先把此信道下一个服务完成时刻置为当前呼叫到达时刻，再加上服从参数为μ的指数分布的服务时间；反之，如果前者比后者中全部都小，说明所有信道在此呼叫到达后才会结束服务，即当前忙，此呼叫被阻塞掉了-call blocking probability calculation and simulation : the time frame to consider. Whether or not blocked, the next call arrived at the present moment to call time arrived with a subordinate parameters/ index distribution of the call interval. A call arrived only judgment call and the arrival time each channel service has completed a moment : If the former than the latter an arbitrary, and at least one channel is completed service calls than this moment arrived moments earlier, that this channel is idle, call this success, should first get here Channel a moment of complete services for the current call home arrival time, coupled with the parameters obey the exponential distribution services; Conversely, if the former than the latter, all

LwIP协议栈的设计与实现，是中文的，对如何理解和移植lwip协议栈非常有帮助-Implementation of LwIP Protocol Stack Design and Implementation of Chinese. how to understand and transplant lwip protocol stack has been very helpful

资源描述#include #define uchar unsigned char //宏定义 #define uint unsigned int  //宏定义 sbit rs=P2^0; sbit e=P2^1; sbit key1=P2^2; //四个服务人员的按键 sbit key2=P2^3; sbit key3=P2^4; sbit key4=P2^5; sbit shengyinled=P2^6;   //模拟声音 sbit fuwuled=P2^7; uchar hao[50]="0";  //存储当前需要服务的号码 uchar j=0;    //  号码的个数 uchar *quhao=hao; uchar key=0;   //按键值 uchar code table[]="0123456789"; uchar code table1[]="Welcome!"; uchar code table2[]="No.0000->0hao";//用于液晶初始化显示 void delay(uchar z)  //延时函数 {     uchar i,j;     for(i=z;i>0;i--)         for(j=110;j>0;j--); } void wr

Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency selective fading channels 一篇信道估计的经典文章-Channel estimation for OFDM systems based on comb-type pilot arrangement in frequency se lective fading channels a channel estimation of the classic article

资源描述代码的原理是将所有的好友全部拉入群组，如果拉不进来，表明对方将你删除了

中国1号信令的接入源代码--Source code of Chinese Common Channel Signaling System No.1

设计Arduino的销13被连接到220欧姆的电阻。连接到晶体管2N222A电阻，然后连接到基座。一条腿被连接到地，另一条腿被连接到蜂鸣器。此外蜂鸣器连接到Vcc。蜂鸣器，请12伏变为5伏。

微软亚洲研究院论文：鲁棒的报头压缩机制：TCP/IP子集 -Microsoft Asia Research Institute Papers : Robust header compression mechanism : TCP/IP subset

the vhdl model of usb. it is very helpful.-vhdl model of the usb. It is very helpful.