VxWorks 7 BSP with the Zynq-7000 AP SoC.pdf-资料库

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Application Note: Zynq-7000 AP SoC Using VxWorks 7 BSP with the Zynq-7000 AP SoC Authors: Uwe Gertheinrich, Simon George, Kester Aernoudt, John Linn, and Upender Cherukupally XAPP1258 (v1.0) May 8, 2015 Summary VxWorks® is a multicore-capable Real-Time Operating System (RTOS), commonly used in fully featured embedded subsystems where a commercial runtime software and tool chain solution is required. Supporting a variety of CPU architectures, most notably the ARM Cortex™-A9 MPCore as available in the All Programmable Zynq®-7000 SoC platform. This application note focusses on using the all new (circa 2014) VxWorks 7 offering on this platform, for guidance on using the maturing VxWorks 6.9 release refer to XAPP1158 [Ref 1]. Introduction This application note comprises the following major sections: Source Build Project – Creation, Configuration and Build Kernel Image Project – Creation, Configuration and Build Target Bring-Up – Local and Network Boot Software Application (Generic) – Creation, Development and Debug Software Application (Peripheral Access) – Creation, Development and Debug (ZC702 Only) • VxWorks Project Types • • • • • • Appendix A: Development Environment Installation • Appendix B: Customizing uBoot for the Avnet Mini-ITX Development Kit Hardware and Software Requirements Hardware Requirements (Optional) 1. Xilinx ZC702 Development Kit (XC7Z020-1CLG484) 2. Avnet Mini-ITX Development Kit (XC7Z045-2FFG900) Software Requirements 1. Wind River Workbench 4.0 (See Appendix A: Development Environment Installation for installation instructions.) 2. TFTP server application, such as tftpd32 3. Serial communication utility, such as Tera Term XAPP1258 (v1.0) May 8, 2015 www.xilinx.com 1

VxWorks Project Types VxWorks Project Types VxWorks Source Build (VSB) These are the kernel libraries. VxWorks 6.9 and previous versions ship with standard prebuilt libraries, but it might be useful to change the configuration/sources of a VSB to rebuild them for a specific need. You must build custom libraries if you want to vary from the default binaries shipped with your platform. For example, if you want to change the default settings for endianness, enable SMP support, or enable real-time process support, you must specify the appropriate options and build custom libraries. To build custom libraries, you must create, configure, and compile a VxWorks source build (VSB) project. VxWorks Image Project (VIP) This is the image that you build and run on the target. It contains the kernel, BSP, architecture support, and VxWorks middleware (stacks, standard programs, etc.). It might also contain a specific type of read-only file system that is linked with the image (romfs). A VxWorks image project (VIP) is used to create a version of VxWorks using components based on the precompiled libraries provided in the VxWorks installation. A VIP can use the standard components that are delivered with binary libraries, or it can be based on a VxWorks source build (VSB) project. Downloadable Kernel Module (DKM) This is similar to kernel modules in Linux (binaries that you can load and unload on-the-fly to add symbols to the kernel). This can be used to dynamically load applications/drivers that run in kernel space. You can use DKM projects to manage and build modules that exist in the kernel space. You can separately build the modules, run, and debug them on a target running VxWorks, loading, unloading, and reloading on-the-fly. Once your development work is complete, the modules can be statically linked into the kernel, or they can use a file system if one is present. XAPP1258 (v1.0) May 8, 2015 www.xilinx.com 2

Source Build Project – Creation, Configuration and Build Source Build Project – Creation, Configuration and Build This section explains how to create, configure and build a VxWorks Source Build (VSB) image from the Zynq-7000 BSP that is natively installed with the Wind River environment. Such must be created before creating a VxWorks kernel image. These steps explain how to achieve this: Invoke Wind River Workbench and open a new or existing workspace. 1. 2. Select File > New > Project. The new project wizard opens. 3. Under VxWorks 7, select the VxWorks Source Build Project, as shown in Figure 1. X-Ref Target - Figure 1 Figure 1: Selecting the VxWorks Source Build Project XAPP1258 (v1.0) May 8, 2015 www.xilinx.com 3

Source Build Project – Creation, Configuration and Build 3. Click Next. The New VxWorks Source Build Project wizard dialog box opens, as shown in Figure 2. X-Ref Target - Figure 2 Figure 2: New VxWorks Source Build Project Wizard Dialog Box 4. Enter a project name, for example, Xilinx_Zynq7k_BSP, and click Next. x1258_30_050715 RECOMMENDED: It is highly recommended that this be located outside of your workspace to enable reuse across developments – it is a 'one off build stage' and build times can approach 10-20 minutes. XAPP1258 (v1.0) May 8, 2015 www.xilinx.com 4

Source Build Project – Creation, Configuration and Build 5. Select the appropriate Zynq BSP in the BSP: drop down menu, as shown in Figure 3. This would be xlnx_zynq7k_?_?_?_? | avnet_mini_itx_7z_?_?_?_? for the pre-installed BSPs. Click Finish. Note: BSP versions evolve and might be updated from that which is available at time of publication of this application note. Select that which is most suitable to your development. X-Ref Target - Figure 3 Figure 3: Selecting the BSP and Creating Source Build Project for the Zynq-7000 AP SoC After a few seconds, the BSP project is created in the Project Explorer window. x1258_03_050115 6. Right-click Xilinx_Zynq7k_BSP and select the Properties option. 7. The Properties view for Xilinx_Zynq7k_BSP wizard opens. Click Build Properties and change the Build command to make -jN where N is the number of cores in your host machine. This speeds up the build time. Give the N value with respect to the host machine configuration and click Apply. XAPP1258 (v1.0) May 8, 2015 www.xilinx.com 5

Source Build Project – Creation, Configuration and Build 8. A confirmation wizard then opens, select Yes and then click OK. This reduces the BSP build time. 9. Now build the VSB Project. Right-click the project (Xilinx_Zynq7k_BSP) in the Project Explorer window and select the Build Project option. A parallel build enable confirmation box is launched, select Yes. 10. It takes 10 -20 minutes for the BSP build process to complete. After completing the build process, create the VxWorks kernel image by following the procedures in the following section. Note: At time of publication, there are some minor ignorable build errors. Wind River is working on clearing these issues XAPP1258 (v1.0) May 8, 2015 www.xilinx.com 6

Kernel Image Project – Creation, Configuration and Build Kernel Image Project – Creation, Configuration and Build This section explains how to create a VxWorks kernel image from the VxWorks Source Build Project (VSB) created in the previous stage. It also explains how to configure the VxWorks kernel for the specific implementation requirements. 1. In the Wind River Workbench main context menu, select File > New > Project. The New Project Wizard opens as shown in Figure 4. X-Ref Target - Figure 4 Figure 4: Creating the New VxWorks Kernel Image Project for the Zynq-7000 AP SoC 2. Under VxWorks 7, select VxWorks Image Project and click Next. A New VxWorks Image Project Wizard opens (also shown in Figure 4). 3. Enter a project name (for example: Zynq_VxWorks_image) and click Next. XAPP1258 (v1.0) May 8, 2015 www.xilinx.com 7

Kernel Image Project – Creation, Configuration and Build 4. For "Project" browse to your prebuilt VSB project directory location. Once selected, a single BSP will be listed and that should match your choice made in the previous VSB build guidelines section. (See Figure 5.) Click Next. X-Ref Target - Figure 5 Figure 5: Configuring the Profile Development for VxWorks x1258_05_05011 5. From the New VxWorks Image Project wizard, select PROFILE_DEVELOPMENT (Figure 5). 6. Click Finish. This creates the kernel image project in the Project Explorer window. XAPP1258 (v1.0) May 8, 2015 www.xilinx.com 8

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VxWorks 7 BSP with the Zynq-7000 AP SoC.pdf

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