Visual C++ 串口通信编程实践 第9章和第10章源码

这个项目是关于通过GSM调制解调器发送SIM900D模拟readinds一些凡在GSM覆盖......由PIC内建ADC获得来自ADC值，并将其显示在LCD上，并通过GSM调制解调器发送短信

Ph.D thesis from M.H.Perrott, about Fractional-N PLL design.

This is sofe input and soft output programme you can use. Matlab is the similation tool.

程控交换机通用计费程序RS232接口支持单机或网络大型数据库-program- controlled switches common billing procedures RS232 interface supports stand-alone or network database

labview下的udp通讯，包括发送和接收，新手参考

PROFIBUS GSD 4.1版；

某论坛要开发短消息系统 ，实现如下功能： 用户登录、登出 查看个人的短消息 发送短消息 回复短消息 删除短消息 该系统要满足如下要求： 已读和未读的短消息应采用不同的标记 回复时自动添写用户名 未登录不能看短消息，自动跳转到登录页面 登录后自动跳转到查看短消息列表的页面 -A Forum is expected to open Faduanxiaoxi system to achieve the following functions: user login, logout view personal reply short message to send a short message SMS Short Message Delete the system to meet the following requirements: have read and unread short message should be different marked automatically reply logged Tianxie user name can not see a short message, automatically redirecting to login page automatically after login Jump to see a list of short message page

利用调制解调器AT命令进行拨号的VC源码-using AT modem command dial VC FOSS

使用Visual Basic 6实现真正实用的多线程串行通讯 事实上使用Visual Basic的ActiveX exe技术可以轻松的实现多线程处理，此技术在串行通讯中很好用，尤其需要一边通讯，一边数据处理方面，如果用timer实现串行通讯，其复杂程度可想而知。这个实例用在PC与PLC通讯以及PC和单片机通讯，都比较实用。 原理先不说了,先举个示例,有兴趣的话大家可以一起讨论

Very Low Frequency (VLF) spectrograms show sometimes sets of lines called MLR (Magnetospheric Line Radiation) with frequency spacing close to 50 or 60 Hz. It is very tempting to attribute these MLR to Power Line Harmonic Radiation (PLHR). PLHR are the ELF and VLF waves radiated by electric power systems at the harmonic frequencies of 50 or 60 Hz. Here we show for the first time large scale MLR observed simultaneously on ground and on board a low altitude satellite which is flying over the same zone.