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# Abstracted Functions
[User API: Nano Layer]

## Modules
| Task Control Functions
| Semaphore Functions
| Mutex Functions
| Message Box Functions
| Flag Functions
| Timer Functions

## Detailed Description

The nano layer supports most of all pico layer functions in an abstracted form. This is necessary to follow the layering scheme while all pico layer functions remain accessible. The general rule is to replace the prefix 'pos' by the new prefix 'nos' for the nano layer functions. But pay attention: Some nano layer functions have some more functionality as their pendant in the pico layer.