Getting Started

Block Diagram

Given below is a block diagram of the SW modules in this SDK,

Software Block Diagram

The main software components in the block diagram are described below

Software Components	Documentation Page	Description
OS Kernel
No RTOS	NO RTOS	Contains modules which implement no-RTOS execution environment consisting of timers, ISR, main thread. Allows software on top to run in bare metal mode.
FreeRTOS Kernel	FreeRTOS	FreeRTOS Kernel, provides a execution environment consisting of tasks, semaphores, timers, see https://www.freertos.org/RTOS.html
FreeRTOS POSIX	FreeRTOS	Limited POSIX APIs with FreeRTOS underneath, provides pthreads, mqueue, semaphore, see https://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_POSIX/index.html
Driver Porting Layer (DPL)	Driver Porting Layer (DPL)	APIs used by drivers to abstract the OS environment. Example, Semaphore, HW interrupts, mutex, clock.
Device Drivers and HAL (Hardware Abstraction Layer)
SOC Peripheral Drivers	SOC Peripheral Drivers	Device Drivers library and APIs for peripherals within the SOC. Example, I2C, GPIO, UART.
Board Peripheral Drivers	Board Peripheral Drivers	Device Drivers library and APIs for peripherals on the board or EVM. Example, Flash, EEPROM.
Protocol Stacks and Middleware
Examples and Demos
Examples and Demos	Examples and Demos	Examples and demos showing usage of different SW libraries and APIs
Tools (used on host machine)
Smart Placement	Smart Placement	Smart placement is a process which aims to place critical functions & data in faster memory and is usually used for large memory footprint application which requires XIP.
Memory Configurator	Memory Configurator	Memory Configurator is a tool which provides option to choose critical parameters to generate linker files for a seamless, hassle-free experience.
Code Composer Studio (CCS)	Using SDK with CCS Projects	IDE used to build projects, debug programs, see https://software-dl.ti.com/ccs/esd/documents/users_guide/index_project-management.html
TI CLANG Compiler Toolchain	TI CLANG CGT HOMEPAGE	CLANG based ARM compiler from TI for ARM R5F and M4F
SysConfig	Using SDK with SysConfig	System configuration tool, used to configure peripherals, pinmux, clocks and generate system initialization code
TI Resource Explorer (TIREX)	Using SDK with TI Resource Explorer	Web broswer based tool to explore the SDK, select, import and run the examples
SDK Tools and Utilities	Tools and Utilities	Additional tools and utilities, like flashing tools, booting tools, CCS loading scripts used with the SDK development flow

Directory Structure

Given below is a overview of the directory structure to help you navigate the SDK and related tools.

Folder/Files	Description
${SDK_INSTALL_PATH}/
README_FIRST_AM261X.html	Open this file in a web browser to reach this user guide
makefile	Top level makefile to build the whole SDK using "make"
imports.mak	Top level makefile to list paths to dependent tools
docs/	Offline browseable HTML documentation
examples/	Example applications for AM261X, across multiple boards, CPUs, NO-RTOS, RTOS
source/	Device drivers, middleware libraries and APIs
tools/	Tools and utilities like CCS loading scripts, initialization scripts.
${SDK_INSTALL_PATH}/source/
board/	Board peripheral device drivers
drivers/	SOC peripheral device drivers
kernel/	NO RTOS and RTOS kernel and Driver Porting layer (DPL) for these environments
${SDK_INSTALL_PATH}/examples/
drivers/	SOC and board focused device driver examples. The examples are based on both NO-RTOS and RTOS.
empty/	Template projects to copy into workspace and customize based on application needs

Given below are the paths where the different tools needed outside the SDK, like CCS, SysConfig are installed by default in Windows. In Linux, the tools are installed by default in ${HOME}/ti.

Folder/Files	Description
C:/ti/ccs1281	Code Composer Studio
C:/ti/sysconfig_1.21.2	SysConfig. NOTE, SysConfig is also installed as part of CCS at ${CCS_INSTALL_PATH}/ccs/utils/sysconfig_x.x.x
C:/ti/ti-cgt-armllvm_4.0.1.LTS	TI ARM CLANG compiler tool chain

Licenses

The licensing information of this SDK, as well as any third-party components included which are made available under a number of other open-source licenses are enumerated as part of the manifest. A complete manifest along with export control information is detailed here [LINK], [LINK], [LINK] and the SDK Software License Agreement (SLA) is here [LINK]

Help and Support

For additional help and support, see https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum

Documentation Credits

This user guide is generated using doxygen, v1.8.20. See https://www.doxygen.nl/index.html