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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Change the trigger width to a number that, when divided by eight, does not leave a remainder of 1, 2, 3, or 4.
And one further problem is that, inevitability, the logic analyzer you are using will also be required by one or more other project teams, which means you all have to agree on how you will allocate the analyzer resources. If your design had multiple up to 15 ILA modules, each would be connected to a different control port on the ICON, using a unique bit control bus. The complete design is then recompiled.
ChipScope Integrated Logic Analyzer (ILA)
At the end of the labkit. Leave all other settings at their default values and click “Next”. Then we would run chipcope system and try to work out what the heck was happening. Instead of loading the resulting.
Sadly, however, in many cases they do not remove the need to rebuild xhipscope code. The trig0 port on the ILA should be connected to the signals that you wish to probe with the ChipScope analyzer.
Using ChipScope ILA
The big downside with this approach comes in designs that are already utilizing most of the devices programmable resources, because this will limit any logic analyzer implementations. When the download completes, the LEDs on the labkit should start counting.
The waveform window should now only contain the bit chopscope count. To group analyzer channels into a bus, expand the “Data Port” item in the window pane labeled “Signals: For this tutorial, you will need two different types of modules: Click “OK” to chilscope the “Configur In the Trigger Setup window, highlight the last eight “X”s of the value field.
Select core type to generate: In your project directory, you should now have a number of new files icon. ChipScope Analyzer also provides the interface for setting the trigger criteria for the ChipScope cores, and for fhipscope the waveforms recorded by those cores. Leave the remaining three checkboxes unchecked and click “Next”.
See Xilinx Answer Recordwhich recommends the following workarounds: Watch the progress indicator in the lower-right corner of the ChipScope window. Make sure Virtex II is selected as the device family. Connect the programming cable to the JTAG port on the labkit, and power on the labkit. 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.
As with the ICON chupscope, the output netlist should be generated in your project directory, and the device family should be set to Virtex II. It is therefore not possible to detect glitches with ChipScope.
You can have multiple ILA blocks for separate parts of your design.
Chipscope Ila doesn’t show anything!
Indeed, I am working on one such project at the time of this writing. Name the new bus count. This tutorial builds on the simple counter project, described in the Getting Started tutorial. Make sure the top-level module labkit is selected in the source tree, and double-click on “Generate Programming File in the processes window, to compile the design.
For this tutorial, you only need 1 match unit. This file also provides a dummy “black-box” definition of the core. Under Trig0, choose a trigger width of 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 once it has ula loaded into the FPGA.
Now, let’s change the trigger setup to trigger when the lower eight bits of the count bus are all zero. This document introduces the Xilinx ChipScope Analyzer.
The sample memory of the analyzer is limited by the memory resources of the FPGA. An ILA is a logic analyzer block which can trigger on internal signals and capture them inside a memory so that they can be viewed through the analyzer GUI.
Click “Select New File” in the dialog that appears, and then select the labkit. 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. If you no longer have that project setup, create a new project in Project Navigator, and add the following files.
In order to use the ChipScope internal logic analyzer in an existing design project, you first generate the ChipScope core modules, which perform the trigger and waveform capturing functionality on the FPGA.
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.
Click the play button in the ChipScope toolbar to arm the analyzer, and wait for a trigger event. Afterwards, you instantiate these cores in your Verilog code, and you connect those modules to the signals you want to monitor.