1.1.1. System Debugging Tools Comparison
|System Console and Debugging Toolkits||
|Signal Tap logic analyzer||
||You have spare on-chip memory and you want functional verification of a design running in hardware.|
|Signal Probe||Incrementally routes internal signals to I/O pins while preserving results from the last place-and-routed design.||You have spare I/O pins and you want to check the operation of a small set of control pins using either an external logic analyzer or an oscilloscope.|
|Logic Analyzer Interface (LAI)||
||You have limited on-chip memory and a large set of internal data buses to verify using an external logic analyzer. Logic analyzer vendors, such as Tektronics* and Agilent*, provide integration with the tool to improve usability.|
|In-System Sources and Probes||Provides an easy way to drive and sample logic values to and from internal nodes using the JTAG interface.||You want to prototype the FPGA design using a front panel with virtual buttons.|
|In-System Memory Content Editor||Displays and allows you to edit on-chip memory.||
You want to view and edit the contents of on-chip memory that is not connected to a Nios® II processor.
You can also use the tool when you do not want to have a Nios® II debug core in your system.
|Virtual JTAG Interface||Allows you to communicate with the JTAG interface so that you can develop custom applications.||You want to communicate with custom signals in your design.|
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