HAL

The HAL is a layer intended to isolate an OS from its hardware. It mainly provides two main pieces of source code:

• CPU and platform initialization
• Device drivers

Both are produced by Processor Expert engine when LDD and its corresponding RTOS component are integrated in a Processor Expert project.

This software layer provides the source code tailored for every platform and every configuration that you may need for its particular implementation. Integrating HAL into an OS provides several advantages:

• Tailored source code for a specific application. You can select any settings and the drivers.
• The OS can be easily portable to a different derivative of the same hardware and even to a new architecture, as the Processor Expert can generate the source code for that particular architecture.