MCU-PLUS-SDK-AM263PX: SBL OSPI Bootloader Configuration Lockstep Operating Mode

TollMan said:

Is this the project used to build the prebuilt image in:

  mcu_plus_sdk_am263px_09_02_00_56\tools\boot\sbl_prebuilt\am263px-cc

Hi Scott, that is correct conclusion, as a part of post build step the built binary is copied to the prebuilt folder

Hi Nilabh,

3)

I use OSPI SBL while running the cores in "standalone" mode (cores running different executables) without noticing problems.

If "Lockstep" is selected, for the BOOTLOADER parameters:

  R5FSS0 Operating Mode

  R5FSS1 Operating Mode

... does this mean that the cores are expected to execute om lockstep mode?

4)

I want to use:

    mcu_plus_sdk_am263px_09_02_00_56\examples\drivers\boot\sbl_ospi\am263px-cc

... as the a starting point for a OSPI SBL.

My cores will be running different executables. Is it important to use "standalone" mode for BOOTLOADER parameters:

  R5FSS0 Operating Mode

  R5FSS1 Operating Mode

... ?

Regards,

Tollman

TollMan said:

I use OSPI SBL while running the cores in "standalone" mode (cores running different executables) without noticing problems.

If "Lockstep" is selected, for the BOOTLOADER parameters:

  R5FSS0 Operating Mode

  R5FSS1 Operating Mode

... does this mean that the cores are expected to execute om lockstep mode?

Hi Tollman,

This is not very clear to me. Do you see any issue with cores running in non-lockstep mode?

TollMan said:

I want to use:

    mcu_plus_sdk_am263px_09_02_00_56\examples\drivers\boot\sbl_ospi\am263px-cc

... as the a starting point for a OSPI SBL.

My cores will be running different executables. Is it important to use "standalone" mode for BOOTLOADER parameters:

  R5FSS0 Operating Mode

  R5FSS1 Operating Mode

... ?

This would be a choice. Can you explain your bootloader design a bit, so I comment better here?

Again 

Hi Nilabh,

Regarding:

" Do you see any issue with cores running in non-lockstep mode?"

I'm not having a problem, but the configuration of:

  R5FSS0 Operating Mode

  R5FSS1 Operating Mode

... in the Bootloader SysConfig seems like it may either be wrong or irrelevant.

I think, since my cores are not using lockstep, I may change the configuration to be "standalone".

Please let me know if that is a good approach.

Regards,

Tollman

TollMan said:

... in the Bootloader SysConfig seems like it may either be wrong or irrelevant.

Hi Tollman except IPC we do not use Standalone in any other example, so we tend to keep the two cores in lock step.