In embedded system development, driver design is a key factor affecting system performance, energy efficiency, and maintainability. Below is an in-depth analysis of three mainstream driver design techniques along with practical recommendations: 1. Polling Driver Technical Features: Blocking Design: The main program cannot perform other tasks while waiting for peripheral responses. Simple Implementation: Only requires … Read more
“I previously wrote a paid column on the architecture of SaaS products for Xiaobaotong, but due to starting a business, I didn’t have time to continue improving it, so it was put on hold. Now I will share the content of the column on the public account, with an expected update once a month. If … Read more
1How WebIM Implements Message Pushing WebIM typically has three methods to implement a push channel: WebSocket FlashSocket HTTP Polling Among these, ① and ② are implemented using TCP long connections, which can guarantee the real-time nature of messages through TCP. Scheme ③ is considered the “orthodox” method for WebIM to implement message pushing, using HTTP … Read more