Intel® Quartus® Prime Pro Edition User Guide: Platform Designer

ID 683609
Date 6/26/2023
Public

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4.10. Add Component Instances to a Static or Generated Component

You can create nested components by adding component instances to an existing component. Both static and generated components can create instances of other components. You can add child instances of a component in a _hw.tcl using elaboration callback.

With an elaboration callback, you can also instantiate and parameterize sub-components with the add_hdl_instance command as a function of the parent component's parameter values.

When you instantiate multiple nested components, you must create a unique variation name for each component with the add_hdl_instance command. Prefixing a variation name with the parent component name prevents conflicts in a system. The variation name can be the same across multiple parent components if the generated parameterization of the nested component is exactly the same.

Note: If you do not adhere to the above naming variation guidelines, Platform Designer validation-time errors occur, which are often difficult to debug.