Ethernet mac component the mac component provides ethernet connectivity to the avb solution. I once tried the avb reference design binary which says 1722. Xmos 935 5 xmos avb overview an xmos avb reference design consists of three main components. We tested the xmos voice processor against other solutions on the market, and it outperformed them all for clarity, accuracy, distance and direction. The open avb project is sponsored by the avnu alliance. Avb requires new ethernet hardware to do accurate time stamping of packets. Aes64 is a standard for the discovery, enumeration, connection management, and control of multimedia network devices. Choose general existing projects into workspace and click next. Also, in the current avb code on github, you can see a comment that. To use the component, a physical interface must be attached to the xcore ports to. The openavnu project is sponsored by the avnu alliance.
To answer this demand, xmos and attero tech have jointly developed a solution that consists of a flexible xmos softwareonly implementation of avb audio and a lowcost board that supports up to 8 duplex channels of audio. An xmos avb endpoint can keep track of several media clocks. Adp, aecp aem and acmp draft 21 simultaneous 1722 talker and listener support for sourcing and sinking audio 1722 maap support for talker stream mac address. Avb audio video bridging is an ethernetbased standard for audio and video transmission. Synchronized real time audio streaming over ethernet in embedded. Getting started with startkit a first look at the new startkit development board from xmos. Avb network segment deploying two differ ent types of avb server. Connect the network port on your motu interface to the ethernet port on the mac using a standard, highgrade cat5e or cat6 network cable up to 100 meters in length.
As we moved into development, the xmos team were on hand whenever we needed them to help us resolve technical hurdles and secure the best possible performance outcomes. Common avb modules across reference designs c 9 18 1 0. To enumerate and stream audio between a mac and an xmos avb. I think it has some dependancy on intel nic hardware and igb library.
Are you using an eclipsebased ide like xtimecomposer xmos or code composer studio texas instruments and hate all the. This paper describes the implementation of an aes64 protocol stack and control application on devices that support the ieee ethernet audiovideo bridging standards for streaming multimedia, enabling connection management of network audio. By incorporating dual ethernet ports, avb dc endpoints may be connected together in a line, reducing installation effort and infrastructure cost, whilst still maintaining the high qos provided by the avb standards. To install the software, open the xde xmos development tools and follow these steps. Configuration and application threads xmos avb design. Theres no avb support on windowslinux but with the correct nic and layer 2 ethernet access, an avb stack could be. The intent is to provide components for building avb tsn systems. Microchip ksz9477 avb switch ic xcore exchange xmos. The firmware flash updates are available in the categories firewire, usb and hdps ethunderbolt. This forum is intended as an easily accessible 1 place to share information and discuss about avb click here to ask a question.
For example, an audio sample clock that governs the rate at which samples should be passed to an audio codec. I tried to order an xilinx fpga dev board and thought of implementing dante on that but it seams dante is more corporate development and big budget. The xmos ethernet avb reference design delivers a complete avb networked audio system, providing support for all avb endpoint requirements, including ethernet interface, packet processing, timing synchronization, configurationstream setup and media rate recovery. All uptodate drivers for the current rme product line. Can you please explain the dependancy in detail for the open avb so that i. If nothing happens, download github desktop and try again.
Each stream is sent from a particular source mac address to a particular destination mac address. The buffer fill level of these streams is set in conjunction with communication to the media clock server. Xmos xcore audio processor 1 is the worlds first to pass the anvu alliance certifica. If that werent getting very far, we could still opt for something more opened less proprietary such as xmos ethernet avb since its already part of the xcore family. Motu avb switch, gigabit, 5 ports, 315 xmos compatibility unknown. The first component functions are the ethernet components. Avb audio endpoint kitxmos avb max channelslisteners. I have an xmos xcore 200 mc board, which works great with my mac. The ethernet mac and mii the precise timing engine ptp audio streaming components these three components along with a user component for con. The xmos usb audio firmware supports both usb audio class 1. The mac component provides ethernet connectivity to the avb solution. A media clock can be synchronized to one of three sources. Driver changes are listed in the readme file within the downloaded driver archive.
Features o low cost avb module o low power, small form factor o oem friendly hardware o xmos xs1l16 128qfn o microchip 32bit mcu coprocessor o jtag for custom programming network o complete avb stack by xmos. Xmos ethernet avb reference design electronics weekly. In october of last year xmos announced a new low cost development board called startkit, and then quickly followed up with an announcement that they would be giving 2,500 of these away before running through what the board provides and the process of building software for it. An xmos avb application tutorial xcore open source on github.
Xcore open source project has 119 repositories available. The repository contains primarily network building block components drivers, libraries, example applications and daemon. The repository contains primarily network building block components drivers, libraries, example applications and daemon source code required to build an avb tsn system. In total there are 453 users online 0 registered, 6 hidden and 447 guests based on users active over the past 10 minutes most users ever online was 1044 on sat nov 10, 2018 9. It takes ieee 1722 packets from the ethernet mac and splits them into output fifos. In addition, avb switches can reserve an endtoend path with guaranteed bandwidth for a stream. The intent is to provide components for building avb systems.
Software architecture for a multiple avb listener and talker scenario. And you did post something about xkaudio216mcab here. To use the component, a physical interface must be attached to the xcore ports to provide an 100 mbps mii interface. This tutorial walks through the application code for the xravblcbrd.
Now, i want to be able to stream to a linux box and i dont really know if thats supported yet, and if so, how do i go about it. The xmos avb dc platform builds on the defacto standard avb solution by adding support for daisychain network topologies. Audio video bridging avb is a common name for the set of technical standards initially developed by the institute of electrical and electronics engineers ieee audio video bridging task group of the ieee 802. First select your operating system, then the respective interface. The audio video bridging avb technology powered by a 500mhz xmos processor which provides low latency, uncompressed and tightly synchronized streams to each speaker over standard networks. Do you need to keep your code under sourcerevision control with a solution like git, subversion svn, mercurial. The xs1 device is also capable of implementing a dual 100 mbps interface and a gigabit gmii interface. For an example of how an application can use this api, see the example code walkthrough presented in section an xmos avb application tutorial. You can adapt this file completely to your liking, but. The destination mac address may be a multicast address that is several listeners may receive it.