HAL Interfaces

The HAL supports separate interfaces for many peripherals. A brief description of the interfaces are shown below.

Hal Name	Interface File	Description
bsp	hal_bsp.h	An hardware independent interface to identify and access underlying BSP.
flash api for apps to use	hal_flash.h	A blocking interface to access flash memory.
flash api for drivers to implement	flash_map.h	An interface to query information about the flash map (regions and sectors)
gpio	hal_gpio.h	An interface for manipulating General Purpose Inputs and Outputs.
i2c	hal_i2c.h	An interface for controlling Inter-Integrated-Circuit (i2c) devices.
OS tick	hal_os_tick.h	An interface to set up interrupt timers or halt CPU in terms of OS ticks.
spi	hal_spi.h	An interface for controlling Serial Peripheral Interface (SPI) devices.
system	hal_system.h	An interface for starting and resetting the system.
timer	hal_cputime.h	An interface for configuring and running HW timers
uart	hal_uart.h	An interface for communicating via asynchronous serial interface.
watchdog	hal_watchdog.h	An interface for enabling internal hardware watchdogs.