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ms51_RS-485_mutipc
- RS－485串行总线接口标准以差分平衡方式传输信号，具有很强的抗共模干扰的能力，允许一对双绞线上一个发送器驱动多个负载设备。工业现场控制系统中一般都采用该总线标准进行数据传输，而且一般采用RS－485串行总线接口标准的系统都使用8044芯片作为通信控制器或各分机的CPU。8044芯片内部集成了SDLC，HDLC等通信协议，并且集成了相应的硬件电路，通过硬件电路和标准协议的配合，使系统的通讯准确、可靠、快速。8044在市场上日渐稀少，虽然有8344可替代，但几百元的价位与普通单片机几元至几十元的价
SDLC-1
- Software development life cycle
TestingTechniques
- The document tells various testing types and techniques carried out for entire SDLC phases.
State-machine-programming
- 状态机程序设计,学习协议的制订；掌握状态机程序设计方法；在232通信接口的基础上如何实现链路层功能，实现一个简化的SDLC协议。-State machine programming, learning agreement developed master state machine programming method in 232 communication interface, based on how link layer functions, to achieve a simplif
Project-3
- software engineering sdlc choices proce-software engineering sdlc choices process
softwareprocess
- A software development process, also known as a software development life-cycle (SDLC), is a structure imposed on the development of a software product. Similar terms include software life cycle and software process. It is often considered a subset o
Lec-1-SDLC
- Systems Analysis and Design with UML Version 2.0