介紹了一種新的基于NIOS II的導航系統的設計方案. NIOS是建立在FPGA 上的嵌入式微處理器軟核, 由于它硬件設計上的靈活性和可裁減性，使得軟件設計上“平臺”的概念延伸到硬件設計中。本文就是把NIOS II硬件平臺的方案，在導航系統計算機設計上進行了有益嘗試，實踐證明，本設計不但實現了預期功能，而且為以后在其他導航產品上快速的移植硬件和軟件系統，提供了有力保證。
關鍵字：NIOS II；SOPC；FPGA；導航系統；硬件和軟件平臺
Abstract: This paper introduces a new design scheme for the navigation system platform based on NIOS II. NIOS is an imbedded micro-processor’s soft core based on FPGA . Because of the flexibility of the hardware’s design, we can popularize the conception of“platform” from the software’s design to the hardware’s. It is proved that this design works well, and it assures that the hardware and software system could be fast replanted to other navigation products.
Key Words：NIOS II；SOPC；FPGA；Navigation system ；Platform of hardware