Why does the simulation not match the design?

Why does the simulation not match the design?

In that case, the design might have a value that is neither “1” nor “0”, causing unpredictable results in subsequent logic. Because metastability is only caused if the signal changes right at the clock edge, it is a rare event–but often not rare enough. Either way, the simulator will rarely if ever notice it.

Which is an example of a circuit simulation?

Code Example 1 is the simple basic code to simulate the voltage across the capacitor of Figure 2 in response to a step voltage input. CODE EXAMPLE 1. RC circuit step response simulation. The critical code lines that simulate the circuit behavior are shown in red.

What is the time constant for a circuit simulation?

The simulated step response of an RC circuit with time constant RC = 25 ms. The X points are the analytical solution from Equation 1. The red curve is the numerical solution with dt = 0.25 ms. The blue curve is the numerical solution with dt = 10 ms.

How to find the time dependence of a circuit?

For our first problem, let’s find the time dependence of the voltage V C in the simple RC circuit of Figure 2. FIGURE 2. The simulated step response of an RC circuit with time constant RC = 25 ms. The X points are the analytical solution from Equation 1. The red curve is the numerical solution with dt = 0.25 ms.

How to explain the difference between simulation and theory?

On the other side the simulation results represent the behavior of the same object based on its theoretical model Then there are some procedure to get the simulation results: – development of a mathematical model for the object leading to system of equations.

How to explain the difference between simulation and experimental data?

Join ResearchGate to ask questions, get input, and advance your work. I. About simulation and experimental data ― Numerical models can be used to generate data ― numerical simulation ― which can be just as experimental as if generated by physical models.

What causes a simulator to not match synthesis?

Because metastability is only caused if the signal changes right at the clock edge, it is a rare event–but often not rare enough. Either way, the simulator will rarely if ever notice it. Here are some examples of things that might cause metastability. No synchronization of async signal Inputs to a design may be asynchronous.