using Xilinx design tools. Place and route the design with ILA cores. Download bit-stream on to FPGA and analyze the signals using chipscope. Xilinx ChipScope ICON/VIO/ILA Tutorial. The Xilinx ChipScope tools package has several modules that you can add to your Verilog design to. If you are new to FPGAs, one aspect of the development flow you may not have considered is how you will go about debugging your design.
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In the Trigger Setup window, highlight the last eight “X”s of the value field.
The complete design is then recompiled.
Type eight zeros, and then return. At the end of the labkit. This is the window length for your ILA.
Debugging with ChipScope
The waveform window should now only contain the bit bus count. We might also specify certain trigger conditions upon which we desired the tool to commence storing data for subsequent display and analysis.
This means that you may have to keep on rebuilding your design to access the signals of interest and route them out to the test header. Using virtual logic analyzers may remove the need for test headers.
Using ChipScope ILA | ADIUVO Engineering
Also, ChipScope cannot sample as quickly as an external logic analyzer. Start Project Navigator, and open the counter project. The trig0 port on the ILA should be connected to the signals that you wish to probe with the ChipScope analyzer. Match units allow you to create different trigger vectors so that you can trigger on a sequence of different vectors: A dialog box will appear that lets you create the necessary hardware modules for your FPGA.
Set the output netlist field so that the ICON core is generated in the counter project directory, Make sure the output netlist name ends with. ChipScope will begin downloading the. ChipScope Analyzer also provides the interface for setting the trigger criteria for the ChipScope cores, and for displaying the waveforms recorded ia those cores. You have now generated all the necessary ChipScope hardware blocks, and are ready to include them chipscopd the existing counter design.
The functionality of these modules will be filled in when the.
Change the trigger width to a number that, when divided by eight, does not leave a remainder of 1, 2, 3, or 4. Watch the progress indicator in the lower-right corner of the ChipScope window.
One big advantage of these in-chip logic analyzers is that they offer the ability to capture the values on wide internal busses and store these values in internal RAM.
For example, while your design is running on the FPGA, you can trigger when certain events take place and view any of your design’s internal signals. This tutorial builds on the simple counter project, described in the Getting Started tutorial. This file also provides a dummy “black-box” definition of the core. As with their physical counterparts, these virtual logic analyzers — like ChipScope from Xilinx, Identify RTL Debugger from Synopsys, Reveal from Lattice Semiconductor, and SignalTap from Altera — can be set up so that they will only start collecting data after certain trigger conditions have been met.
For this tutorial, you will need two different types of modules: In your project directory, you should now have a number of new files icon. ChipScope is a set of tools made by Xilinx that allows you to easily probe the internal signals of your design inside an FPGA, much as you would do with a logic analyzer. Connect the programming cable to the JTAG port on the labkit, and power on the labkit. Instead of loading the resulting. Having configured the target device, you can then connect to the target over JTAG using the ChipScope Analyzer tool and trigger on the waveform of interest as illustrated in the screenshot below.
One solution to this problem — a solution that has seen great advances over the last few years — has been the development of in-chip logic analyzers for use with FPGAs.