| .. _osal: | |
| OS Abstraction | |
| ############## | |
| OS abstraction layers (OSAL) provide wrapper function APIs that | |
| encapsulate common system functions offered by any operating system. | |
| These APIs make it easier and quicker to develop for, and port code to | |
| multiple software and hardware platforms. | |
| These sections describe the software and hardware abstraction layers | |
| supported by the Zephyr RTOS. | |
| .. toctree:: | |
| :maxdepth: 1 | |
| posix/index.rst | |
| cmsis_rtos_v1.rst | |
| cmsis_rtos_v2.rst |