采用串口转以太网模块使现有串口设备具备联网功能是一种低成本实用的解决方案。在使用之前,需要根据具体应用环境对串口转以太网模块的串口参数以及网络参数进行设置。对上位机与串口转以太网模块间的通信协议进行了详细阐述,采用UDP广播通信方式,由上位机通过网口对模块进行参数配置。在Visual Studio 2012下,用C#编程实现了一套配置软件。配置过程中,上位机和模块可以跨网段通信,避免需预知模块初始IP以及更改上位机IP地址的麻烦,使用更方便。
关于Python3中Asyncio库的详细介绍与示例:
You’ll learn why Asyncio offers a safer alternative to preemptive multitasking (threading) and how this API provides a simple way to support thousands of simultaneous socket connections. Get a critical comparison of Asyncio and threading for concurrent network programming Take an Asyncio walkthrough, including a quickstart guide to help you hit the ground looping with event-based programming Learn the difference between Asyncio features for end-user developers and those for framework developers Understand Asyncio’s new async/await language syntax, including coroutines and task and future APIs