在单片机开发中,UART、I2C、RS485等普遍在用,对它们的认识可能模棱两可,本文把它们整理了一下。本文较长,阅读时间大约10分钟。 UART通用异步收发器 UART口指的是一种物理接口形式(硬件)。 UART是异步,全双工串口总线。它比同步串口复杂很多。
The name might remind you of RS232, and that’s because both RS232 and RS485 are standards that come from EIA (Electronics Industries Alliance). It also might remind you of RS422, if you’ve ...