SystemVerilog Interface Visualization for HDL Debugging
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Solution Overview
Problem
Current verification methods for HDL designs with SystemVerilog interface constructs lack effective visualization and debugging tools, making it difficult for designers to manage and understand the connectivity and direction of interface signals between modules.
Innovation Solution
A system and method for viewing and debugging HDL designs with SystemVerilog interface constructs, which displays modules and interface objects in a schematic view, with distinct shapes for interface objects to differentiate them from module objects, and allows for the visualization of interface signals and their direction, enabling users to easily distinguish master and slave modules and trace signal connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional verification methods are used for HDL designs with SystemVerilog interface constructs, then the verification process can be performed, but it becomes difficult to manage and understand the connectivity and direction of interface signals between modules
Solution Approach 1:
The patent creates a visual copy or representation of the HDL design structure through schematic views. Interface constructs are represented as distinct visual objects that copy the essential connectivity and directional information from the textual HDL code, making it easier to understand and debug without losing any signal flow information.
Solution Approach 2:
The patent introduces an intermediary visualization layer between the HDL code and the verification process. This intermediary schematic view translates abstract interface constructs into concrete visual representations with distinct shapes and connection lines, serving as a mediator that bridges the gap between code and understanding.
2Ease of manufacture
If interface constructs are used in HDL designs to manage signal connectivity, then module organization is improved, but visualization and debugging become more difficult
Solution Approach 1:
The patent employs visual differentiation through distinct shapes and potentially color coding to represent different types of objects in the schematic view. Interface constructs are given unique visual characteristics that make them easily distinguishable from regular modules, and signal directions are visually indicated, allowing quick detection of signal flow without complex analysis.
Solution Approach 2:
The patent adds a visual dimension to the otherwise abstract interface constructs. By representing interfaces as distinct graphical objects with spatial relationships in a schematic view, the patent transforms one-dimensional textual information into two-dimensional visual information, making it easier to detect and understand signal connectivity and direction.
3Measurement precision
If detailed interface signal connectivity is tracked in HDL code, then verification accuracy is improved, but the complexity of managing interface objects increases
Solution Approach 1:
The patent segments the complex interface management task into distinct visual components. Each interface construct is represented as a separate object in the schematic view, with individual connection lines showing signal paths. This segmentation allows verification of signal connectivity between specific modules without being overwhelmed by the overall system complexity.
Data Source
AI summary
Methods and systems for viewing and debugging HDL designs having SystemVerilog interface constructs are provided. An HDL design code is received, wherein the design code comprises a first module, a second module and a SystemVerilog interface construct. A first object corresponding to the first module, a second object corresponding to the second module and an interface object corresponding to the interface construct are displayed in a schematic view. The interface object is disposed between the first and second objects, and a shape of the interface object is different from that of the first and second objects. The interface signals from the first object to the second object and the interface signals from the second object to the first object pass through the interface object.