Traditional Culture Encyclopedia - Traditional festivals - The relationship between HAL, BSP, BootLoader, embedded operating system, driver, etc.
The relationship between HAL, BSP, BootLoader, embedded operating system, driver, etc.
BSP: Board Support Package, which is a collection of different programs based on the different hardware on the board, which can contain a compiled OS, driver, Bootloder, or bare-metal program.
HAL: Hardware Description Layer, a layer added between the main processor and the operating system to enhance portability of the operating system
This allows the operating system to be used with a different main processor without modifying the operating system.
On the main processor, a bootloader is used to initialize the hardware and boot the OS.
After that, the operating system is loaded, and the drivers are used by the operating system or application to control the devices on the board.
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