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Original question:

AM2432: Secure boot time

MCU-PLUS-SDK-AM263X: AM263X SBL QSPI total time taken

Jay Sun
Expert 1005 points
Part Number: MCU-PLUS-SDK-AM263X

Hi expert

SDK: MCU-PLUS-SDK-AM263X_08_02_00_28

we use sbl_prebuilt\am263x-cc\ sbl_qspi.release.tiimage to load appimage with 217KB size.

After power on, show sbl log for SBL Total Time Taken almost ~200ms, but our customer requirement is <100ms

Our QSPI IC is same as AM263X-CC EVM

please guide us how to reduce sbl time for QSPI booloader?

BR

JAY

  • +1
    TI__Mastermind 27743 points

    Hi Jay,

    We have enabled DMA mode support in SBL which has reduced the boot time drastically. This would be part of SDK8.3 release (planned in next week).

    Below is boot time with new updated SBL -

    PP Image: hello_world_am263x-cc_r5fss0-0_nortos_ti-arm-clang_458752.appimage
    Size: 488KB
    Platform AM263X-LP


    Starting QSPI Bootloader ...
    [BOOTLOADER PROFILE] System_init : 795us
    [BOOTLOADER PROFILE] Drivers_open : 35us
    [BOOTLOADER PROFILE] Board_driversOpen : 262us
    [BOOTLOADER PROFILE] CPU load : 28224us
    [BOOTLOADER_PROFILE] SBL Total Time Taken : 29317us

    Image loading done, switching to application ...
    Hello World! From Bucher
    GPIO LED Blink Test Started ...
    GPIO LED Blink Test Passed!!
    All tests have passed!!

    Regards,

    Prasad

  • 0 in reply to Prasad Jondhale
    Expert 1005 points

    Hi Prasad


    Thanks for your reply, we will check when SDK8.3 release

    BR

    Jay