July 2025
Beginner to intermediate
402 pages
8h 8m
English
Content preview from C++ in Embedded Systems
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12
Writing C++ HAL
A Hardware Abstraction Layer (HAL) is a core software component in embedded projects. It simplifies interactions with hardware peripherals by providing an easy-to-use interface that abstracts the hardware details. The HAL manages the reading and writing of memory-mapped peripheral registers, allowing you to use peripherals such as GPIOs, timers, and serial communication interfaces, without dealing directly with low-level hardware specifics. It often supports multiple devices within the same family.
By using a HAL, firmware becomes more portable across different devices and similar families from the same vendor. It hides the register layouts of memory-mapped peripherals, making it easier to reuse drivers and business logic ...
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