ZW系列智能盘表MODBUS规约通讯程序演习程序1.0（VB）

modbus协议-----51端程序的实现-modbus protocol----- 51-side programs to achieve

the model of cpu ARM7TDMI.

IEC61970数据集成规约扩展与应用。 IEC61970-IEC61970

Adaptive Filter Theory　是滤波器设计的经典教材，深入浅出的讲解了滤波器的原理-Adaptive Filter Theory is the classic filter design materials, in simple terms to explain the principles of the filter

com串口源代码-com string mouth source code

/*CHECKED * Function: time.c Project: DNP * * * * DESCRIPTION: * * This file contains functions for converting between * DNP time format and RTU time format (rtc counter type). * * DNP format is to express the time in the number of milliseconds * since the start of 1970. * * * REVISION HISTORY: * * Num Modified by Date Reason * --- ----------------------- --------- ------------------------------- * * */ -/*CHECKED * Function: time.c Project: DNP * * * * DESCRIPTION: * * This file contains functions for converting between * DNP time format and RTU time format (rtc counter type). * * DNP format is to express the time in the number of milliseconds * since the start of 1970. * * * REVISION HISTORY: * * Num Modified by Date Reason * --- ----------------------- --------- ------------------------------- * * */

用C实现的TCP/IP socket连接/读/写操作。采用了select方法来设置socket超时。此示例在Windows/unix系统下编译运行通过。-C realization of TCP/IP socket connections/read/write operation. Select the method used to set the socket overtime. This example in the Windows/Unix systems running through the compiler.

ADC0808技术资料，为英文原版资料，详细介绍该元件内部电路及原理及相关使用数据。-ADC0808 technical information for the English original information, details on the components and principles of the internal circuits and related data.

描述了qpsk过程，与大家交流，请多多指正-described qpsk process, and the exchange of, and invites further correction

G.729加解码程序-G.729 coding/decoding program