AM263x MCU+ SDK  10.00.00
SBL NULL

Introduction

This is a bootloader which does SOC initializations and put all the cores in WFI. This example is what is referred to as the SOC initialization binary in SOC Initialization using the Binary Flashed in QSPI memory. The SBL NULL does not load any images on the cores. For more information on how this example is being used, refer SOC Initialization using the Binary Flashed in QSPI memory

Supported Combinations

Parameter Value
CPU + OS r5fss0-0 nortos
Toolchain ti-arm-clang
Boards am263x-cc, am263x-lp
Example folder examples/drivers/boot/sbl_null

Steps to Run the Example

Since this is a bootloader and is used as a SOC initialization binary, the example will be run every time you boot an application using this example. It is generally run from a boot media (OSPI Flash, SD Card) unlike other examples which are usually loaded with CCS. Nevertheless, you can build this example like you do for the others using makefile or build it via CCS by importing as a project.

See Also

BOOTLOADER

Sample Output

Starting NULL Bootloader ...
INFO: Bootloader_runCpu:150: CPU r5f1-1 is initialized to 400000000 Hz !!!
INFO: Bootloader_runCpu:150: CPU r5f1-0 is initialized to 400000000 Hz !!!
INFO: Bootloader_runCpu:150: CPU r5f0-1 is initialized to 400000000 Hz !!!
NULL Bootloader Execution Complete...
INFO: Bootloader_loadSelfCpu:202: CPU r5f0-0 is initialized to 400000000 Hz !!!
INFO: Bootloader_runSelfCpu:219: All done, reseting self ...