Aug 5, 2009 ... Use three cases to do co-simulation: – MATLAB test bench. – MATLAB
component. – Bidirectional cosimulation with Simulink. • Benefits of Link ...
2009/8/5
Continuous Verification with EDA Simulator Link Tools Wayne Chen
[email protected]
Agenda • Introduction for Chip Design Flow • What is Link for EDA Tools • Use three cases to do co-simulation: – MATLAB test bench – MATLAB component – Bidirectional cosimulation with Simulink
• Benefits of Link for EDA Tools
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Chip Design Flow • Hardware Description Languages (HDL) are used by chip designers to create their designs. • Verilog and VHDL are HDLs. • HDL simulators are used to verify correct functionality of the HDL. System Design
Timing Simulation
HDL Design Functional Simulation
HDL Synthesis
Mask Making
Physical Design 3
ASIC/FPGA Design Flow Beings In HDL.
Simulate RTL
Synthesis
Din
Dout
Clock Reset
Physical Design
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What Are The Pains? Solutions? • Engineers need to verify that ASIC/FPGA implementations correctly match their system specifications.
y=f(x)
Link
• Using the Link for EDA Tools, these engineers can co-simulate their MATLAB and Simulink designs with equivalent Verilog and VHDL. 5
What Is Link For EDA Tools?
Incisive® Link for EDA Tools Discovery ®
• Fast, bidirectional cosimulation interface between MATLAB and Simulink, and EDA Tools. 6
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Three Use Of Cases 1. MATLAB test bench (design block-oriented) • •
MATLAB code drives an HDL entity in the HDL Simulator MATLAB code analyzes the results of the HDL entity
2. MATLAB component (design block-oriented) • •
MATLAB code replaces an HDL entity in the HDL Simulator HDL Simulator drives MATLAB function and uses result
3. Bidirectional cosimulation with Simulink (system-oriented) • •
Simulink as a test bench environment for Mentor ModelSIM Simulink models can replace HDL entities in the Simulator
MATLAB® As a Test Bench •
Block under test is an HDL implementation running in the HDL simulator.
•
MATLAB is the “system” simulation environment.
•
MATLAB drives and analyzes the implementation.
ModelSim Simulator
EDA Simulator Link MQ
Use Mentor ModelSIM Waveforms Etc.
Connects the environments
The full power of MATLAB: Function code Subjective/objective analysis Statistical analysis, etc. Toolboxes Custom tools Scopes, viewers, etc. Good-enough and range
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Algorithm Development Using MATLAB And EDA Simulator Link MQ
Verification environment is HDL Simulator
Use Case 2: MATLAB component
Block is modeled by MATLAB
Typical uses:
Broken block
Unfinished block
Top-level entity is HDL M-code is executable specification of a “to-be-coded-in-HDL” algorithm HDL Simulator
HDL Simulator Alternate algorithm
Speed up slow block
Full power of MATLAB available
Using Simulink And EDA Simulator Link MQ
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Benefits Of Link For EDA Tools
Incisive Link for EDA Tools Discovery
• HDL co-simulation and hardware design verification in MATLAB and Simulink • Co-simulate and verify VHDL and Verilog from MATLAB and Simulink – with your HDL simulations running in ModelSim/Incisive/Discovery • Mixed-Language Simulation in Simulink – m (MATLAB), C/C++, and now: VHDL + Verilog 11
MathWorks Links To HDL Simulators • EDA Simulator Link MQ v2.6 (Mentor ModelSIM) • EDA Simulator Link IN v2.4 (Cadence Incisive) • EDA Simulator Link DS v2.1 (Synopsys Discovery)
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