随着单片机的广泛应用,传统的用仿真器烧录软件的方法已无法满足大批量产品软件频繁更改的现状,而且仿真器烧录必须拆开产品,存在一定风险。针对这一现状,本文提出了一种基于单片机的在线编程的方法。该方法通过单片机自带的串口实现软件的在线升级。实践证明该方法简单,可靠,高效。 With the widespread use of single chip microcomputer, the traditional method of burning software by simulator can not meet the current situation of frequently changing mass-produced product software, and the simulator has to be opened and the product must be disassembled with some risks. In response to this situation, this paper presents a method based on single-chip online programming. The method through the microcontroller serial port to achieve software online upgrade. Practice has proved that the method is simple, reliable and efficient.