AM64x MCU+ SDK  07.03.00
SBL UART

Introduction

This bootloader does SOC initializations and attempts to boot a multicore appimage present at 0x80000 location in the OSPI Flash. To flash a multicore appimage at this location, follow the steps mentioned in Basic steps to flash files.

If a multicore appimage is found at the location, the SBL parses it, splits it into RPRCs for each core applicable. Each core is then initialized, RPRC image is loaded, entry points are set and the core is released from reset. For more on bootflow/bootloaders, please refer Understanding the bootflow and bootloaders

Supported Combinations

Parameter Value
CPU + OS r5fss0-0_nortos
Toolchain ti-arm-clang
Board am64x-evm
Example folder examples/drivers/boot/sbl_uart

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 or over UART) 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.

  • 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

See Also

BOOTLOADER

Sample Output

Since this SBL receives the appimage over UART using XMODEM protocol, it doesn't print anything to the console so as not to corrupt the XMODEM transport.