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Embedded Software Infrastructure

Enabling Embedded Developers with Necessary Components

Overview

Xilinx and its Ecosystem Partners deliver embedded tools and runtime environments designed to enable you to efficiently and quickly move from concept to release. We provide you with all the components needed to create your embedded system using Xilinx Zynq? SoC and Zync UltraScale+ MPSoC devices,?MicroBlaze? processor cores,?and Arm Cortex-M1/M3 micro controllers including open source operating systems and bare metal drivers, multiple runtimes and Multi-OS environments, sophisticated Integrated Development Environments, and compilers, debuggers, and profiling tools.

Out of the box support for advanced features such as security and virtualization software drivers built on our unique Zynq SoC's and Zynq UltraScale+ MPSoC devices enables you to develop smarter, connected, and differentiated systems.
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embedded-components


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Build & Development Tools

Linux

Xilinx Linux is the most prevalent operating system used by Xilinx products. Xilinx provides the?PetaLinux?tools for a simplified Linux development?flow, as well as source code and?Yocto?recipe files from our?GIT?repository such that Linux support for Xilinx silicon can be supported by in-house build?systems or 3rd party tools.??The?Xilinx Linux project?is a customized non-commercial Linux development project catered towards development on Versal ACAP,??Zynq SoC?and?MicroBlaze.

The Linux kernel support for the Xilinx releases are:

  • 2017.x is 4.9??
  • 2018.x is 4.14??
  • 2019.x is 4.19?

Development Tools

The new Vitis? unified software platform, Xilinx Software Development Kit (SDK), and Ecosystem Partner tools offer a wide choice of development environments that enable SoC-like C/C++ programming of the Zynq and MPSoC platforms.

Xilinx Software Environments
Ecosystem Software Development and Tools

Build Tools

Xilinx offers two tools to build and deploy?Emebdded?Linux solutions. These are Xilinx’s?PetaLinux?and the Open Source Project of?Yocto.?PetaLinux offers the user a GUI to quickly build the Embedded Linux and Yocto can be used by more experienced users to custom based?Linux for their boards.

Xilinx products are supported by comprehensive set of open source resources to develop, boot, run, debug and maintain your Linux based application for a Xilinx SoC or emulation platform. We offer example applications, Kernel configurations, Yocto recipes, Multiprocessing and Real-time solutions, device drivers and Linux open source developer will find familiar sources, tools, and support forums to learn, develop and interact with others of like interests, needs and passion.


RTOS & Libraries

RTOS

"A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application process data as it comes in, typically without buffering delays. (wikipedia.org)”

Key factors in an RTOS are keeping it simple and light weight. Other factors are minimal interrupt latency and contact thread switching latency. An RTOS is valued more for how quickly and how deterministically it can respond than for the amount of complexity it can handle.

FreeRTOS

The FreeRTOS kernel was originally developed by Richard Barry around 2003, and was later developed and maintained by Richard's company, Real Time Engineers Ltd.

FreeRTOS was a runaway success, and in 2017 Real Time Engineers Ltd. passed stewardship of the FreeRTOS project to Amazon Web Services (AWS). Richard continues to work on FreeRTOS as part of an AWS team.

FreeRTOS??is a market leading RTOS from Amazon Web Services that supports more than 35 architectures and was downloaded once every 3 minutes during 2017. It is professionally developed, strictly quality controlled, robust, supported, and free to embed in commercial products without any requirement to expose your proprietary source code.(reference: https://www.freertos.org/RTOS.html)

freertos-logo

Please refer?https://www.freertos.org/RTOS.html?for further information.

FreeRTOS kernel port is available for the following Xilinx processors:

Processor Device
64-bit Cortex-A53 Application processor (APU) & 32-bit Cortex-R5 Real-time processor (RPU) ZynqUS+ SoC devices
32-bit Cortex-A9 Application processor (APU) Zynq-7000 SoC devices
32-bit MicroBlaze processor All Xilinx device families

More information about FreeRTOS on Xilinx Products can be found at Xilinx FreeRTOS.

Xilinx provides additional libraries and bare metal drivers. These libraries are developed specifically for Xilinx devices.

Libraries
  • wip – Network TCP/IP stack
  • xilisf – Flash
  • standalone BSP – Board support package
  • xilffs – FAT File System
  • xilfpga – PL/FPGA management (bitstream loading)
  • xilskey – Security
  • xilsecure – Security
  • xilrsa – security

More Information on bare metal drivers and libraries can be found at the Xilinx Wiki at: Bare Metal and Libraries.

Soft Processor Cores

Soft Processor Cores

MicroBlaze? is the Xilinx FPGA-based, 32-bit/64-bit RISC Harvard architecture soft processor. It supports advanced architecture options such as AXI interface, Memory Management Unit (MMU), instruction and data-side cache, configurable pipeline depth and Floating-Point Unit (FPU).

The soft processor core is included with the Xilinx software tools and comes with the following three presets for the user:


Click to enlarge
Microcontroller Preset (up to 200DMIPs)
  • 32-bit Processor Core
  • External Memory Controller
  • SPI Controller
  • I2C Controller
  • UART
  • Interrupt Controller
  • Timer

Click to enlarge
Real-Time Processor Preset (up to 200DMIPs)
  • All Microcontroller Preset blocks
  • Instruction Cache
  • Memory Protection Unit
  • Data Cache
  • DDR Controller

Click to enlarge
Application Processor Preset (up to 180DMIPs)
  • All Real-Time Processor Preset blocks
  • 32-bit Processor Core
  • Memory Management Unit
  • Ethernet Controller

The Cortex-M1 and Cortex-M3 processors are 32-bit processors designed for low power, low logic resources and low interrupt latency?performance. The Cortex-M1 is designed very much for constrained applications, which require communication, control and management.?While the M3 is intended for a wide range of embedded and IoT applications. To support forward compatibility the Cortex-M1 implements a?subset of the Cortex-M3 instruction set and features.

Embedded Ecosystem

Xilinx and its Ecosystem Partners deliver embedded tools and runtime environments designed to enable you to efficiently and quickly move from concept to release. We provide you with all the components needed to create your embedded system using Xilinx Zynq? SoC and Zynq UltraScale+ MPSoC devices, MicroBlaze? processor cores,? and Arm Cortex-M1/M3 micro controllers including open source operating systems and bare metal drivers, multiple runtimes and Multi-OS environments, sophisticated Integrated Development Environments, and compilers, debuggers, and profiling tools.

Linux

? Zynq-7000 SoC Support Zynq UltraScale+ APU Support Zynq UltraScale+ RPU Support MicroBlaze Support
Non-Commercial ?
Linux, uBoot, more (Xilinx GIT) ?
Yocto/OpenEmbedded support ?
PetaLinux tools ?
Arch Linux ARM ? ? ?
Ubuntu Linux Learn More Learn More ? ?
Android ? ?
Commercial Solutions ?
Enea Linux ? ? ?
Mentor Embedded Linux ? ?
Star Lab Crucible ? ?
Suse Linux ? ? ?

RTOS and Bare Metal

Operating System Safety Certifiable Zynq-7000 Support Zynq UltraScale+ APU Support Zynq UltraScale+ RPU Support MicroBlaze Support
Xilinx Stand-alone (bare metal) Environment and Xilinx Software Development Kit (SDK) ?
DDC-I DEOS ? ?
eSol eT-kernel ? ?
eCOS ? ? ?
eForce ? ?
ENEA OSE ? Contact Partner ?
Etas RTA-OS ? ? ?
Express Logic X-WARE IoT PLATFORM powered by THREADX
Green Hills Software INTEGRITY ? ?
LynxOS 7.0 Contact Partner Contact Partner ? ?
Mentor Nucleus Contact Partner
Micrium uC/OS-II
Micrium uC/OS-III ?
RTEMS ? ?
Sciopta ?
Segger embOS ? ? ? ?
Wittenstein OpenRTOS ? Contact Partner Contact Partner Contact Partner
Wittenstein SafeRTOS Contact Partner Contact Partner

AMP and Multi-OS Solutions

Xilinx provides its customers and partners with key technologies, documentation and support to enable advanced, multi-OS system designs on our products. Offerings available from our ecosystem include:

Xilinx also supports the Open Source Project Open Asymmetric?Multi Processing?(OpenAMP). OpenAMP) is a framework providing the?software components needed to enable the development of software applications for Asymmetric Multiprocessing (AMP) systems. Please?see the Open Source (put link to the other tab) for more details.

Training

Xilinx offers designers a full suite of training and support options for their Zynq? and MPSoC applications to include design methodologies, video tutorials, developer's forums, Wiki, on-line-support, design services, FAQs and Blogs to insure that your application gets to market on time.

Design Service Partners

Open Source Projects

Open Source Projects

Xilinx believes and participates in the Open Source community. The?main focus?and projects are below. There are also design?and more information about Xilinx on the?Xilinx Community Portal.

Xilinx has been using Open Source Linux since it has introduced processors in their devices. The first was the Virtex-II Pro in?2001. Since that time Xilinx has utilized Open Source Linux and started to contribute with upstream patches since 2007. When?Xilinx unveiled Zynq-7000 they started to really establish themselves in the Linux community. They now are one of the leading?contributors to the Linux Uboot project.

Linaro is an open source project that developments software across the entire Arm Ecosystem. Linaro partners with ARM to co-maintain the Arm Ecosystem.?

As stated on the 96boards page “96Boards is a range of hardware specifications created by Linaro to make the latest ARM-based processors available to developers at a reasonable cost. The specifications are open and define a standard board layout?for SoC-agnostic (processor independent) development platforms that can be used by software application, hardware device,?kernel and other system software developers.”?

The 96Board with a Xilinx device is an?Ultra96?that is sold by Avnet. There is development by Avnet, Xilinx and the Linaro?community on the Ultra96. For more information visit?http://zedboard.org/product/ultra96-v2-development-board

OpenAMP is a Linaro Community Project that seeks to standardize the interactions between operating environments in a?heterogeneous embedded system through open source solutions. The OpenAMP?Initative?include the following items?

  • OpenAMP is an open AMP framework that includes two efforts:?
    • A standardized way of using AMP??
    • A clean-room open source implementation/project?
  • OpenAMP currently includes the following components:?
    • Lifecycle operations - Such as start/stop another environment?
    • Messaging - Sending and receiving messages?
    • Low level abstractions – Sharing memory, inter-processor interrupts, …?
    • Proxy operations - Remote access to services, e.g. file system?
    • Under development: Resource configuration using System Device Trees?
  • Built on top of existing open source projects/standards?
    • RemoteProc,?rpmsg, Virtio, Device Trees?
  • Accelerate adoption by working in open source?
    • Linux and RTOS implementations

As the Yocto Project states: “The Yocto Project is an open source collaboration project that helps developers create custom?Linux-based systems for embedded products, regardless of the hardware architecture. The project provides a flexible set of?tools and a space where embedded developers worldwide can share technologies, software stacks, configurations and best?practices which can be used to create tailored Linux images for embedded devices.”

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