at91r40008 ATMEL arm 7tdmi kernel source Serial Driver

虽然Windows下可视化开发工具如VC、Delphi、C＋＋ Builder等都有专用的定时器控件Timer，而且使用很方便，可以实现一定的定时功能，但最小计时精度仅为55ms，且定时器消息在多任务操作系统中的优先级很低，不能得到及时响应，往往不能满足实时控制环境下的应用。不过Microsoft公司在Win32 API函数库中已经为用户提供了一组用于高精度计时的底层函数，如果用户使用得当，计时精度可到1ms。这个计时精度、对于一般的实时系统控制完全可以满足要求。现将由C＋＋ Builder 4.0提供的重新封装后的一组与时间相关的主要接口函数（函数名、参数、功能与Win32 API基本相同）说明如下： -visual development tools such as Visual C++, Delphi, C++ Builder and others all have dedicated Timer timer control, but it is convenient. can achieve a timing function, but only the minimum time of 55 ms accuracy. Timer news and multi-task operating system in the low priority that is not to respond in a timely manner, often fail to meet the real-time control environment applications. However, Microsoft Corporation in the Win32 API function has been to provide the user with a group for high-precision the bottom was a time function, if the user is properly utilized, time accuracy can be a ms. Accuracy this time, and for most of the real-time control system can meet the requirements.

16位CRC校验的源程序，修改过，可直接调用-16-bit CRC checksum of the source, modified, can be directly invoked

一个modbus与plc及其他用modbus通讯的一个通用程序原码,很好用的,只要少加修铈就可应用各行业-plc with a Modbus and other Modbus communication with a common procedure original code, the good, as long as the minimum repair cerium can be applied Industries

卓越短信网关模拟器工具包 卓越短信网关模拟器工具包 卓越短信网关模拟器工具包-zhuoyue sms tools

中兴-GPRS原理培训手册,文档详细描述了整个GPRS的构成架构及数据交换原理，希望对大家有用。-ZTE-GPRS principle of training manuals, documents GPRS is described in detail the composition of the whole structure and data exchange principle, useful for all of us hope.

该程序用于RS232串口、以太网通信转换的例子，看看可能对你有帮助-procedures for the RS232 serial ports, Ethernet switch example, you might look at the help

是现在通信编译码中turbo码的源程序，是用MAP算法实现！～-is now communications Encoding turbo code of the source, is to use MAP algorithm! ~

AB的PLC读写程序VB-AB PLC literacy procedures VB

WINDOWS串口编程，调试程序第一部分-WINDOWS serial programming, the first part of the debugger

卷积编码的源代码，可以用于移动通信信道编 码-the source code can be used in mobile communications channel coding