BELK-L-S
BELK-L-S Datasheet
Bora Embedded Linux Kit BELK
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BELK-L-S |
BELK-L-S (pdf) |
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| Bora Embedded Linux Kit BELK Bora Embedded Linux Kit BELK Info Box Applies to Bora Introduction Bora Embedded Linux Kit BELK for short provides all the necessary components required to set up the developing environment for • configuring the system PS and PL at hardware level • build the first-stage bootloader FSBL • building the second stage bootloader U-Boot • building and running Linux operating system on Bora-based systems • building Linux applications that will run on the target DAVE Embedded Systems provides all the customization required in particular at bootloader and Linux kernel levels to enable customers use the standard Zynq-7000 development tools for building all the firmware/software components that will run on the target system. Logical structure of Bora Embedded Linux Kit BELK To understand the structure of BELK, it is necessary to describe the basic organization of Xilinx Vivado Design Suite/Xilinx SDK and to recall briefly the recent history of development tools provided by Xilinx. A little bit of history At the time of this writing October 2013 Xilinx is migrating from mature ISE 14.x Design Suite - that should be the last series of this suite - to the new Vivado environment. Both are composed by several programs and some of these are in common. From the general standpoint, the main difference between ISE and Vivado - even if ISE does support Zynq - is the latter has been expressively conceived to support newer SOC architectures such as Zynq, besides traditional FPGAs. Thus, adopting Vivado as the default environment for BELK would seem the natural choice. However, the migration process mentioned above has just begun and the majority of application notes and reference designs released by Xilinx still refers to ISE suite. Plus Vivado is still a little bit "green" and several bug fixes and improvements are introduced by every new release. Since Bora was presented in 2013 and because this product addresses long longevity markets such as industrial and biomedical, DAVE Embedded Systems chose to build BELK upon Vivado that undoubtedly represents today the future of Xilinx development environments. Bora Embedded Linux Kit BELK Structure of BELK reference designs The typical linux-based Zynq design is composed by the following parts: • FSBL • U-Boot • device tree file • Linux kernel • Root file system • Executable image of core #1 in case of AMP systems • FPGA bitstream. Generally speaking, this parts - in the binary/sinthesized form - are combined together in one monolithic file that is stored in a non-volatile memory such as SPI NOR flash. Generating this file is quite easy as described by Vivado documentation. However in real world products, this may be too rigid because developers may want to handle these parts separately and independently. Basic structure of Vivado Design Suite and integration into BELK Vivado/SDK 1 can be viewed as a collection of programs required to deal with all of the development aspects related to Xilinx components software running on ARM cores, FPGA fabric verification and programming, power estimation etc. . These include strictly FPGA-related tools such as Floorplanner and pure-software development tools such as SDK. The ambitious objective is to provide a complete, user friendly, integrated environment that allows software developers to deal with FPGA development even if they are not familiar with this technology, by hiding a lot of its complexities As usual this ease of use comes at the expence of control and flexibility. This could not be acceptable in many cases where engineers need to control and customize many aspects of the project to implement what is required by system specifications. For this reason BELK has been built around Vivado but some deviations from the default development approach suggested by Xilinx have been introduced, in order to push the modularization and the maintainability of the projects to the maximum extent. The following pictures are retrieved from BELK Quick Start Guide and shows respectively the Vivado/SDK default development flow and how this has been integrated in the BELK infrastructure. Vivado/SDK development flow Bora Embedded Linux Kit BELK Vivado/SDK integration into BELK 1 The Software Development Kit SDK is the Xilinx Integrated Design Environment for creating embedded applications on Zynq -7000 All Programmable SoCs. SDK is the first application IDE to deliver true homogenous and heterogenous multi-processor design and debug, it is optionally included with the Vivado Design Suite or ISE Design Suite, or available as a separate free download for application developers. 2 Nevertheless FPGA developers will find all the traditional tools that allow complete control of FPGA fabric. BELK software components DAVE Embedded Systems adds to the latest Linux BSP from Xilinx the customization required to support the Bora platform, in particular at bootloader and linux kernel levels. The following table reports the XELK releases information. BELK version Release number Status Scheduled Release date July 2013 November 2013 1Q2014 Release notes SOM PCB version CS020313A CS020313A CS020313B Supported carrier boards BoraEVB-Lite BoraEVB-Lite BoraEVB U-Boot version 2013.04-belk-1.0.0 2013.04-belk-1.1.0 t.b.a. Linux version 3.9.0-bora-1.0.0 3.9.0-bora-1.1.0 t.b.a |
| More datasheets: 50971-2-4039 | 66311-2-4039 | 66312-2-4039 | 50972-2-4039 | 66313-2-4039 | 66310-2-4039 | 66309-2-4039 | 50970-2-4039 | 50969-2-4039 | 50968-2-4039 |
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