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The Xilinx EDK Toolset: Xilinx Platform Studio (XPS)

The Xilinx EDK Toolset: Xilinx Platform Studio (XPS). Building a base system platform. What Is Xilinx EDK?. EDK = E mbedded D evelopment K it. It is a set of tools used for building embedded processing systems. I.E. Systems-On-Chip (SoCs) Processors (PowerPC, MicroBlaze)

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The Xilinx EDK Toolset: Xilinx Platform Studio (XPS)

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  1. The Xilinx EDK Toolset:Xilinx Platform Studio (XPS) Building a base system platform

  2. What Is Xilinx EDK? • EDK = Embedded Development Kit. • It is a set of tools used for building embedded processing systems. • I.E. Systems-On-Chip (SoCs) • Processors (PowerPC, MicroBlaze) • Interconnect (PLB, OPB, FSL, etc.) • Memories (BRAM, DDR) • Peripherals (UART, Ethernet, Custom cores) • Running processes to implement a design. • Simulation • Synthesis • Compilation

  3. How Do I Use Xilinx EDK? • Xilinx Platform Studio (XPS) - the actual tool. • Design flow… • First, create the hardware platform • Select all of the peripherals • Connect peripherals • Second, create the software for the platform • Write software to “make things work” • Iterate if needed • The FPGA has a malleable fabric… • So both hardware and software are flexible and can be changed… • At “compile-time” • At “run-time” (dynamic reconfiguration)

  4. How To Get Started • Open up XPS • Create a new project. • Select “File”, “New Project” • Select “Base System Builder…” • Provides a wizard to help get the basic parts of the system established. • Click “OK”

  5. Building The Base System • Set the project file name. • Make sure the absolute path doesn’t have any spaces. • Create a new design from scratch. • Do not use a .BSB file. • Select the development board. • Xilinx, Spartan-3 Starter Board (E) • Select the processor unit. • MicroBlaze. • Use all of the default settings EXCEPT… • Enable the cache link. • Select which peripherals to include. • Use all of the defaults. • Cache setup. • Make both instructions and data cacheable (iCache & dCache). • Software setup. • Use all of the defaults.

  6. Base System Assembly View

  7. How To Run An Application • Select the TestApp_Memory application. • Compile the sources for the application… • Right click on it and select “Build Application” • Execute the test on the base system platform. • This requires the following to be combined… • Hardware bitstream (.bit) • Software executable (.elf) • This is done by selecting “Device Configuration”. • “Update Bitstream” - combines HW/SW (.bit + .elf). • “Download Bitstream” - downloads the configuration to the board.

  8. Monitoring Software Execution On The FPGA • How do you see what is happening on the FPGA? • Normally in software you use print() statements. • The output goes to the screen. • In this system, STDIN/STDOUT are routed to the serial port. • We must monitor the serial port from an external host to see what is happening. • In order to “see” what is executing… • Open up a terminal window • Minicom (Linux) • Hyperterminal (Windows) • Setup the correct communication parameters (baud rate = 9600).

  9. Creating New Software Applications • Select “Software”… • Click on “Add Software Application Project”. • Enter the new project name. • Also, choose which CPU to run the application on (MicroBlaze). • Now a new application tab entry will appear. • You can add/create sources for this new application. • In order to run this new application… • Right click on it • Select “Mark to initialize BRAMs” • Instructs the tool that this application is to be “added” to the bitstream. • Now, when updating the bitstream, this application will be added.

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