This article introduces the define principle and method of the baud rate of serial communication between PC and single chip microcomputer,and gives the computional method for standard baud rate and unstandard baud rate.

• 详细论述了单片机与 PC机串行通信中波特率的确定原则和方法 ,特别给出了 PC机与单片机串行通信中非标准波特率的计算方法及不同环境下实现的实例