  board.h | Standard board header file |
| board_init.c | SAM L21 Xplained Pro board initialization |
| clock.c | SAM L21 Clock Driver |
| clock.h | SAM Clock Driver |
| clock_config_check.h | SAM L21 Clock Driver |
| clock_feature.h | SAM L21 Clock Driver |
| compiler.h | Commonly used includes, types and macros |
| conf_access.h | Memory access control configuration file |
| conf_board.h | SAM L21 Xplained Pro board configuration |
| conf_clocks.h | SAM L21 Clock configuration |
| conf_example.h | Example configuration |
| conf_extint.h | SAM L21 External Interrupt Driver Configuration Header |
| conf_sleepmgr.h | Sleep manager configuration |
| conf_usb.h | USB configuration file |
| conf_virtual_mem.h | Virtual memory configuration file |
| ctrl_access.c | |
| ctrl_access.h | |
| extint.c | SAM External Interrupt Driver |
| extint.h | SAM External Interrupt Driver |
| extint_callback.c | SAM External Interrupt Driver |
| extint_callback.h | SAM External Interrupt Driver |
| gclk.c | SAM L21 Generic Clock Driver |
| gclk.h | SAM Generic Clock Driver |
| interrupt.h | Global interrupt management for 8- and 32-bit AVR |
| interrupt_sam_nvic.c | Global interrupt management for SAM D20, SAM3 and SAM4 (NVIC based) |
| interrupt_sam_nvic.h | Global interrupt management for SAM D20, SAM3 and SAM4 (NVIC based) |
| io.h | Arch file for SAM0 |
| main.c | Main functions for USB composite example |
| main.h | Declaration of main function used by Composite example 2 |
| memories_initialization_samd.c | Initialization of memories Specific SAMDx functions to initialize the memories |
| mrecursion.h | Preprocessor macro recursion utils |
| mrepeat.h | Preprocessor macro repeating utils |
| parts.h | Atmel part identification macros |
| pinmux.c | SAM Pin Multiplexer Driver |
| pinmux.h | SAM Pin Multiplexer Driver |
| port.c | SAM GPIO Port Driver |
| port.h | SAM GPIO Port Driver |
| power.h | SAM L21/L22/R30/R34/R35 Power functionality |
| preprocessor.h | Preprocessor utils |
| qs_lin.h | SAM USART LIN Quick Start |
| qs_pinmux_basic.h | SAM PINMUX Driver Quick Start |
| qs_port_basic.h | SAM GPIO Port Driver Quick Start |
| qs_usart_basic_use.h | SAM USART Quick Start |
| qs_usart_callback.h | SAM USART Quick Start |
| qs_usart_dma_use.h | SAM Quick Start Guide for Using Usart driver with DMA |
| reset.h | SAM Reset functionality |
| saml21_xplained_pro.h | SAM L21 Xplained Pro board definition |
| sbc_protocol.h | SCSI Block Commands |
| sercom.c | SAM Serial Peripheral Interface Driver |
| sercom.h | SAM Serial Peripheral Interface Driver |
| sercom_interrupt.c | SAM Serial Peripheral Interface Driver |
| sercom_interrupt.h | SAM Serial Peripheral Interface Driver |
| sercom_pinout.h | SAM SERCOM Module Pinout Definitions |
| sleepmgr.c | Chip-specific sleep manager configuration |
| saml/sleepmgr.h | Chip-specific sleep manager configuration |
| sleepmgr.h | Sleep manager |
| spc_protocol.h | SCSI Primary Commands |
| status_codes.h | Status code definitions |
| stringz.h | Preprocessor stringizing utils |
| system.c | SAM System related functionality |
| system.h | SAM System related functionality |
| system_interrupt.c | SAM System Interrupt Driver |
| system_interrupt.h | SAM System Interrupt Driver |
| system_interrupt_features.h | SAM L21 System Interrupt Driver |
| tpaste.h | Preprocessor token pasting utils |
| uart.h | UART functions |
| uart_samd.c | UART functions |
| udc.c | USB Device Controller (UDC) |
| udc.h | Interface of the USB Device Controller (UDC) |
| udc_desc.h | Common API for USB Device Interface |
| udd.h | Common API for USB Device Drivers (UDD) |
| udi.h | Common API for USB Device Interface |
| udi_cdc.c | USB Device Communication Device Class (CDC) interface |
| udi_cdc.h | USB Device Communication Device Class (CDC) interface definitions |
| udi_composite_conf.h | Descriptors for an USB Composite Device MSC and HID mouse |
| udi_composite_desc.c | Descriptors for an USB Composite Device |
| udi_hid.c | USB Device Human Interface Device (HID) interface |
| udi_hid.h | USB Device Human Interface Device (HID) interface definitions |
| udi_hid_kbd.c | USB Device Human Interface Device (HID) keyboard interface |
| udi_hid_kbd.h | USB Device Human Interface Device (HID) keyboard interface |
| udi_hid_mouse.c | USB Device Human Interface Device (HID) mouse interface |
| udi_hid_mouse.h | USB Device Human Interface Device (HID) mouse interface |
| udi_msc.c | USB Device Mass Storage Class (MSC) interface |
| udi_msc.h | USB Device Mass Storage Class (MSC) interface definitions |
| ui.c | User Interface |
| ui.h | Common User Interface for USB application |
| usart.c | SAM SERCOM USART Driver |
| usart.h | SAM SERCOM USART Driver |
| usart_interrupt.c | SAM SERCOM USART Asynchronous Driver |
| usart_interrupt.h | SAM SERCOM USART Asynchronous Driver |
| usb.c | SAM USB Driver |
| usb.h | SAM USB Driver |
| usb_atmel.h | All USB VIDs and PIDs from Atmel USB applications |
| usb_device_udd.c | USB Device wrapper layer for compliance with common driver UDD |
| usb_dual.c | SAM USB Dual Role driver file |
| usb_dual.h | SAM USB Dual Role driver header file |
| usb_protocol.h | USB protocol definitions |
| usb_protocol_cdc.h | USB Communication Device Class (CDC) protocol definitions |
| usb_protocol_hid.h | USB Human Interface Device (HID) protocol definitions |
| usb_protocol_msc.h | USB Mass Storage Class (MSC) protocol definitions |
| virtual_mem.c | Management of the virtual memory |
 virtual_mem.h | Management of the virtual memory |
1.8.5