惯性导航系统具有自主性好、隐蔽性好、抗干扰能力强等优势，被广泛应用于航空、航天以及武器系统等领域。 捷联惯导系统是一种与载体固连的数字化惯性导航系统，数字信号传输与通信是导航实现的前提和基础。利用DSP 28335硬 件架构，设计了捷联惯导系统串口通信模块，可以实现捷联惯导系统和DSP之间的高速串口通信。通过试验验证了数据通信 的有效性和可靠性。

Inertial navigation system has the advantages of good autonomy, good concealment and strong anti-jamming ability. It is widely used in the fields of aviation, aerospace and weapon systems. Strapdown inertial navigation system (SINS) is a digital inertial navigation system which is fixedly connected with carrier. Digital signal transmission and communication are the premise and foundation of navigation. Based on the hardware architecture of DSP 28335, this paper designs the serial communication module of SINS, which can realize the high-speed serial communication between SINS and DSP. The validity and reliability of data communication are verified by experiments