SIMterix-Simplis~11~ Hierarchical Design
When the circuit reaches a certain scale, it must be designed in a hierarchical manner. Components should be reused as much as possible to improve efficiency. Even copying and pasting hierarchical design is much simpler. In this case, let's learn how to build a circuit from the bottom up. After drawing the circuit diagram and verifying it, you can turn it into a module and connect the required pins to the module port. Figure 1 shows how to place the module pins, and Figure 2 shows the module circuit.
Figure 1: Placement of module pins
Figure 2: Module circuit
Figure 3: Saving the drawing as a module
Figure 4: Generate schematic module
Figure 5: Schematic module generated based on ports
Figure 6: Placing schematic modules
Find the location you saved in Figure 3 and build a basic circuit to test the function
Figure 7: Basic circuit used for testing
Simulation control code:
|
.simulator SIMETRIX
.tran 5m
.ic V(SW)=0
.simulator DEFAULT
|
Figure 8: Simulation results
Figure 9: Module function reuse test
All functional tests have passed. For details, please refer to SS user manual 6.2 Hierarchical Schematic Entry and start reading.
in conclusion
Hierarchical design allows for easy reuse of previously developed circuit modules, which is very useful for system-level design. Updates to a single module do not affect the operation of the entire system. Verification can begin directly after defining interface functions and interface properties. The number of modules verified by each person is relatively limited, so teamwork greatly improves work efficiency.
Reference Documentation
SIMetrix/SIMPLIS User’s Manual
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