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vhdl port instantiation types

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Bustigo

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what is the difference between instantiation with writing a component, with declaring the architecture , with just wriring entity work.entity_name
can you please write the correct declaration of e
 

Bustigo said:
what is the difference between instantiation with writing a component, with declaring the architecture , with just wriring entity work.entity_name
can you please write the correct declaration of e
Click to expand...

- Writing a component declaration that then gets instantiated takes more work and is also subject to errors that can be difficult to figure out because the error messages aren't always that helpful
- Instantiating an entity directly with 'The_Widge : entiry work.Widget ...' is less work and avoids the problems that will come up with a component declaration.
- Using a component declaration is required when you don't have the code for the entity/architecture because it has been provided as a black box by someone else

Kevin Jennings
 
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