Hello World Project

Table of Contents

• Introduction
• Supported Combinations
• Steps to Run the Example
• Sample Output

Introduction

This example just does driver and board initialization and prints the string, Hello World! on UART console.

Supported Combinations

Parameter	Value
CPU + OS	m4fss0-0 nortos
	m4fss0-0 freertos
	r5fss0-0 freertos
	a53ss0-0 nortos
	a53ss0-0 freertos
	a53ss0-1 freertos
	a53ss0-1 nortos
	a53ss1-0 freertos
	a53ss1-0 nortos
	a53ss1-1 freertos
	a53ss1-1 nortos
Toolchain	ti-arm-clang
	arm.gnu.aarch64-none
Boards	am62x-sk, am62x-sk-lp, am62x-sip-sk
Example folder	examples/hello_world/

Steps to Run the Example

• When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
• When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)
• Launch a CCS debug session and run the executable, see CCS Launch, Load and Run
• To run the example on a53ss0-0, a53ss0-1, a53ss1-0 and a53ss1-1 in FreeRTOS-AMP mode, run the hello_world_freertos-amp_sbl_uart_hs_fs.cfg file using SBL UART or load and run through CCS individually

Sample Output

Shown below is a sample output when the application is run,

Hello World!

FreeRTOS-AMP Sample Output

Attention

Output from a53ss0-1, a53ss1-0 and a53ss1-1 cores are log to the Shared memory, can be viewed via a53ss0-0 on which log reader is enabled

Shown below is a sample output on UART0 console when the application is run,

NOTICE:  BL31: v2.11.0(release):v2.11.0-906-g58b25570c
NOTICE:  BL31: Built : 16:12:49, Dec 16 2024
Hello World! from a53_core0
[a530-1]     0.000100s : Hello World! from a53_core1
[a531-0]     0.000097s : Hello World! from a53_core2
[a531-1]     0.000084s : Hello World! from a53_core3