Avionics Full-Duplex Switched Ethernet (AFDX), also ARINC 664, is a data network, patented by international aircraft manufacturer Airbus, [1] for safety-critical applications that utilizes dedicated bandwidth while providing deterministic quality of service (QoS).

AFDX Redundancy Management Frames are concurrently transmitted over both networks (if VL is configured accordingly Network Selector “A and B”, “A only” and “B only” may be also configured for VLs) on the Receiving End-System, “First Valid Frame wins” which requires provisions for this algorithm e.g. the SN

ARINC 664 P7（AFDX）是一种基于有线局域网网（IEEE802.3）技术的机载航电网络，主要用来替代传统的ARINC 429，ARINC629， 1553B 等总线，采用虚拟链路（Virtual Link）对所需传输的参数进行分组，以固定的带宽分配虚拟链路。 其优势主要是便于机载设备扩展，一定程度上能够减重，同时，航电网络是机载设备软件化的基础，是综合航电系统（IMA）的核心。 AFDX还有一个优势是把程序员从复杂的总线协议中解放出来，改为较为常见的网络编程。 AFDX通过虚拟路 …

2024年1月23日 · Frame Format: The frame format of the AFDX® is IEEE Std 802.3 compliant. The frame includes addresses for defining the end systems of the source and destination, as well as the virtual link allocated.

本仓库提供的是ARINC664标准的Part 7部分，专注于AFDX（航空电子全双工交换网络）协议的详细解析。 ARINC664作为航空电子领域的重要标准，定义了如何在飞机内部实现高效、可靠的网络通信，特别是在现代飞机的复杂电子系统间。

AFDX® Overview. ARINC 664P7 standard adopts the key elements from AFDX® to standardize a deterministic network for aircraft. AFDX® is used on the Airbus A380 as main Avionics databus and on the A400M; AFDX® is based on IEEE 802.3 Standard (commercial Ethernet using Wire) with either 10Mbits/s or 100Mbits/s

AFDX（航空电子全双工交互式以太网 Avionics Full Duplex Switched Ethernet ）,是为航空电子系统中子系统间的数据交换，而定义的电气特性的标准协议。 它是由工业标准的以太网通信协议经过适应性改进形成的，具有相对更高的可靠性、对恶劣环境更强的适应性和更高的实时性。 知识点1：与普通以太网的主要区别就是AFDX是一个确定性的网络，其传输速率可以达到100 Mb/s。 AFDX 第一次在大型航空电子系统上实现了，由传统的分立式电缆连接或共享介质的总线构架 …

AFDX and TTE are being considered more for critical aerospace systems because they provide redundancy, failover protection, guaranteed timing, and frame priority and are based on Ethernet IEEE 802.3. This paper explores the use of AFDX and TTE for aerospace applications . …

Core10/100, an Ethernet MAC, and Actel FPGAs can be used to develop AFDX End Systems (ESes) for use in endpoints and switches. This application note describes a potential prototyping solution using the Platform8051 Development Kit and concludes with a summary of the specific advantages Actel devices provide in avionics applications.

Communication between devices in avionics systems must be predictable and deterministic, and data must be delivered reliably. To help the system architects comply with these requirements, network...