Hardware Abstraction Layer (HAL)

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Author:

Derek Smith

Introduction

The Hardware Abstraction Layer (HAL) provides an easy way to port the ZNP library and examples to other hardware environments.

Prior to changing hardware platforms, it is recommended:

• You have tested all the ZNP examples on known working hardware
• You have extensive programming experience with your desired hardware environment
• You have sufficient time. Porting HAL to a new processor (e.g. Stellaris ARM) took approx. 3-5 days.

To change hardware platforms, the following steps are recommended:

• Copy the hal files (e.g. hal_cc2530znp_target_board.c and hal_cc2530znp_target_board.h) and save them with the name of your platform, for example "hal_gw0.c".
• Define a project property with the name of your environment (e.g. GW0)
• In hal.h add an option for your environment
• Modify your new hal file for your hardware platform.

Note:

Projects compiled with IAR Embedded Workbench for IAR version 4.21.2

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