Avionics full-duplex switched Ethernet (AFDX) technology enables deterministic Ethernet networking for avionics and aircraft systems. The 100 Mbit/s AFDX LFT End System card supports rate-constrained traffic shaping to ensure bounded latency and jitter for deterministic Ethernet networking, as described in ARINC standards. The card can be used for production system integration and provides high-integrity redundancy management as well as an IP/UDP profiled communication layer fully implemented in hardware.
ZYNQ is an ARM SoC based FPGA from Xilinx. It includes Dual-core ARM A9 CPU, high-speed transceiver for PCIe support and 2x Tri-mode Gigabit Ethernet make it suitable candidate for AFDX implementation.
The host communicates with AFDX Card via a dedicated driver. The driver uses DMA for fast data transfers between the host and the AFDX Card. The on-board ARM processor in ZYNQ runs the AFDX protocol stack offloading the host-processors executing user applications. For efficient protocol processing, all IP/UDP are implemented in programmable logic fabric of ZYNQ. The receive and transmit buffers may be configured to operate as either sampling ports or queuing ports. A sampling port utilizes a single message buffer while a queuing port contains storage for multiple messages in a FIFO configuration.
- Integrity checking and redundancy management.
- 1 us. Rx frame time-stamp resolution.
- IP/UDP Offloading on hardware.
- Profiled IP/UDP, sampled and queued ports.
- PCI Express and DMA support.
- PCI Express form factor module.
- 2 ports 10/100 Mbit/s Ethernet.
- Single +12V power supply.
- About 7W of power consumption.
Environmental Operating Ranges
- Operating Temp : -40oC to +80 oC
- Humidity Level : 0 to 95%
- Vibration Sine: 3g peak
- Vibration random: 0.1g2 /Hz.
|Tx Virtual Channels
|Rx Virtual Channels
|Sampling/Queuing ports for Tx
|Sampling/Queuing ports for Rx
|Rx time-stamp resolution
|500 us. To 16 sec.
|AFDX End System Hardware
|Reference Design with RTL source code
|Software Drivers and Library to support AFDX Protocol.
|Three Month Support Provided