HAL Design Patterns Checklist
- Naming (crate aligns with Rust naming conventions)
- The crate is named appropriately (C-CRATE-NAME)
 
 - Interoperability (crate interacts nicely with other library functionality)
- Wrapper types provide a destructor method (C-FREE)
 - HALs reexport their register access crate (C-REEXPORT-PAC)
 - 
Types implement the 
embedded-haltraits (C-HAL-TRAITS) 
 - Predictability (crate enables legible code that acts how it looks)
- Constructors are used instead of extension traits (C-CTOR)
 
 - GPIO Interfaces (GPIO Interfaces follow a common pattern)
- Pin types are zero-sized by default (C-ZST-PIN)
 - Pin types provide methods to erase pin and port (C-ERASED-PIN)
 - Pin state should be encoded as type parameters (C-PIN-STATE)