基于DSP的PC并口与ARINC429总线通讯的设计与实现

Design and implementation of parallel-ARINV429 communication based on DSP

ARINC429规范是现代航空电子设备数字传输的一种标准,其与计算机之间的通讯越来越受到航空业的重视。本文研究了基于高性能DSP芯片与计算机并口(EPP模式)的双向高速数据通讯,详细分析了计算机增强型并口的工作方式．并给出了通过HS-3282芯片进行ARINC429规范通讯的硬件电路具体实现方案。该设计实现了计算机与ARINC429之间的高速数据交换,具有携带方便．功能强大．即插即用,数据传输高速,稳定,可扩展功能等优点．可以良好地适应航空工作的不同环境和变化。

In this paper,we introduce the inter-communication between high-performance DSP and enhanced parallel port（EPP）of computer, and analyze the EPP protocol in detail. The circuit implement of ARINC 429 via HS-3282 chip （s also presented, The scheme realizes high speed communication between computer and ARINC 429, which will be portable, powerful, plug and play, stable, extendable, efficient in data communication, and suit for various circumstances, etc.