What is the difference between functional and timing simulations?
Functional simulation gives information about the logic operation of the circcuit. It does not provide any information about timing delays. On the other hand, timing simulation will tell you how fast signals travel through the gates and how fast the overall circuit can be operated.
What is timing simulation in VLSI?
Accurate timing simulations are crucial to the design of MOS VLSI circuits, but can take prohibitively large amounts of time. This simulator has been used to verify the timing and functionality of several large VLSI chips. Performance is 3 to 7 times faster than a static regionization method.
What is post synthesis timing simulation?
Post Synthesis Timing Simulation includes estimated time delays of the device being used.
Which simulation is performed after functional simulation?
Run Simulation > Run Post-Implementation Functional Simulation. The option becomes available only when synthesis or implementation is run successfully.
What is the need of simulation?
Simulation modeling solves real-world problems safely and efficiently. It provides an important method of analysis which is easily verified, communicated, and understood. Unlike physical modeling, such as making a scale copy of a building, simulation modeling is computer based and uses algorithms and equations.
What is the need of simulation in VLSI?
Simulation plays an important role in the design of integrated circuits. Using simulation, a designer can determine both the functionality and the performance of a design before the expensive and time-consuming step of manufacture.
How do you run post synthesis simulation?
Follow these steps to run simulation:
- Create the project in ISE Project Navigator and add all the required modules including the testbench.
- Set the module (DUT)you want to perform Post-Synthesis Simulation as the Top Module.
- Run Synthesis.
- Once the design is synthesized.
What is post synthesis?
Simulation is the process of verifying the functionality and timing of a design against its original specifications. After synthesis, gate level simulation is performed on the netlist generated by synthesis.
Which type of simulation mode is used to check the timing?
Explanation: Gate-level simulation is used to check the timing performance of a design.