Nios® V Embedded Processor Design Handbook

ID 726952
Date 7/08/2024
Public
Document Table of Contents

6.2.3. Signal Tap Logic Analyzer

The Signal Tap logic analyzer, available in the Quartus® Prime software, captures and displays the real-time signal behaviour in an Intel FPGA design. Use the Signal Tap logic analyzer to probe and debug the behaviour of internal signals during normal device operation, without requiring extra I/O pins or external lab equipment.

The Signal Tap logic analyzer can aid the Nios® V processor debugging by catching software-related problems, such as an interrupt service routine that does not clear the interrupt signal properly.

The Signal Tap logic analyzer enables user to trigger on and capture instruction trace data that the Nios® V processor core executes. You can specify an instruction-trace trigger, which triggers the Signal Tap logic analyzer when the processor reaches a specific address, specific instruction word, or specify your own Signal Tap trigger conditions.