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Coding Tips

To keep the code modular, readable and maintainable I suggest you few tips..

  1. Keep structural and behavioral entities code in separate files.
  2. Always use one single file for each module/entity, never code multiple entities in a single file.
  3. Although VHDL is case insensitive language, but it is a good idea to keep all the constants and key-words in upper case.
  4. Keep unique entity names, no two entity should have same name in a design.
  5. Keep file name same as entity name, this will help you in debugging, and will avoid you to remember file and entity name relationship.
  6. Some operating systems don't take more than 8 characters as file name, and terminate them with "~". If you are using such OS then make sure that your files name should not exceed 8 characters.