 Serial Peripheral Interface (SPI) | See Quickstart guide for SAM SPI driver |
| Power Management Controller (PMC) | |
| Two-Wire Interface (TWI) | Driver for the TWI (Two-Wire Interface) |
| Peripheral Parallel Input/Output (PIO) Controller | |
| Generic board support | The generic board support module includes board-specific definitions and function prototypes, such as the board initialization function |
 Compiler abstraction layer and code utilities | Compiler abstraction layer and code utilities for AT91SAM |
 Preprocessor - Macro Repeat | |
| Preprocessor - Stringize | |
 Preprocessor - Token Paste | |
| Global interrupt management | This is a driver for global enabling and disabling of interrupts |
| Deprecated interrupt definitions | |
| Atmel part identification macros | This collection of macros identify which series and families that the various Atmel parts belong to |
| AVR UC3 parts | |
| AVR XMEGA parts | |
| megaAVR parts | |
| SAM parts | |
| Graphical display system | This service provides an interface to drawing graphics on a graphical display |
| Window System | Window system for organizing window elements in a graphical user interface (GUI) |
| Widget toolkit | The Widget toolkit implements many common widgets for use on a graphical display using the functionality of Window system and Graphics library |
| Basic frame widget | Basic frame widget provides a frame with only a background color |
| Button widget | |
| Check box widget | |
| Frame widget | Frame widget provides a frame with border and a title bar |
| Icon button widget | |
| Label widget | |
| Plot widget | |
| Plot widget options | These options can be ORed together to specify the behaviour of a plot widget when creating it with wtk_plot_create |
| Plot widget grid options | These options can be ORed together to specify the behaviour of a plot widget grid when adjusting it via wtk_plot_set_grid |
| Progress bar widget | |
| Progress bar widget options | These options can be ORed together to specify the behaviour of a progress bar widget when creating it with wtk_progress_bar_create |
| Radio button widget | |
 Slider widget | |
 Slider widget options | These options can be ORed together to specify the behaviour of a slider widget when creating it with wtk_slider_create |
| SDT028ATFT display using ILI9341 display controller | This is hardware specific configuration that configures the graphical service for use with the ILI9341 display controller and the SDT028ATFT display |
| Generic Implementation of Graphics Primitives | This is a library of generic implementations of various graphics primitives |
| Font support | This modules provides functionality for outputting a font to a display |
| System font | The system font objects are globally available for a graphical application |
| ILI9341 Display Controller Component Driver | See Quick Start Guide for the ILI9341 Display Controller Component Driver |
| Serial Peripheral Interface (SPI) | This is the common API for SPI interface |
| Clock Management | |
| Generic Clock Management | Generic clocks are configurable clocks which run outside the system clock domain |
| Oscillator Management | This group contains functions and definitions related to configuring and enabling/disabling on-chip oscillators |
| PLL Management | This group contains functions and definitions related to configuring and enabling/disabling on-chip PLLs |
| System Clock Management | See Quick Start Guide for the System Clock Management service (SAM4S) |
| Power Manager (PM) | This is a stub on the SAM Power Manager Control (PMC) for the sleepmgr service |
| Common IOPORT API | See Quick start guide for the common IOPORT service |
| Busy-Wait Delay Routines | This module provides simple loop-based delay routines for those applications requiring a brief wait during execution |
| SAM3A/3N/3S/3U/3X/4E/4N/4S/G Peripheral DMA Controller (PDC) Driver | This driver for Atmel® | SMART ARM®-based microcontrollers provides an interface for the configuration and management of the the Peripheral Direct Memory Access (DMA) Controller (PDC) module |
| Memory Bag Allocator | The Membag allocator is a optimized, fragmentationless general purpose memory allocator utility module designed to replace the standard C library malloc() and free() functions in resource constrained environments |
| maXTouch low-level component | See Quick start guide for the maXTouch component |
| Two Wire-interface(TWI) | This is the common API for TWIs |
| General Purpose Input/Output | This is the common API for GPIO |
| App_widget_group | |
1.8.5