Hardware abstraction layers (HALs) are an important layer to every embedded software application. A HAL allows a developer to abstract or decouple the hardware details from the application code.

An interface between hardware and software. A hardware abstraction layer (HAL) is generally used as a common driver for peripheral devices. The application calls the operating system; the OS calls the ...

Without abstraction, advances in semiconductor design would have stalled decades ago and circuits would remain about the same size as analog blocks. No new abstractions have emerged since the 1990s ...