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LP-AM243: Team questions

Dominik Ondra
Prodigy 150 points
Part Number: LP-AM243


Hello Expert,

our team had a meeting and there is couple questions that we cannot seem to find answer for. Would you mind helping us?

Here they are:

What is the highest C++ version supported with SDK version 8.5. ?


Is there a way to determine what is the input Voltage level of SoC from within the running application?


What is a reasonable boot-time on AM243x ? I know this depends on the application, flash and so on...
However I just need an example of what is expected boot time.

Best regards and have a nice day.

Dominik Ondra

  • 0
    TI__Genius 15435 points

    Hi,

    I have assigned the thread to our subject matter experts.

    Thanks,
    G Kowshik

  • +1 in reply to Kowshik Gudimetla
    TI__Mastermind 26145 points

    Hi ,

    Dominik Ondra said:
    What is the highest C++ version supported with SDK version 8.5. ?

    The CCS version 12.1 is supported with MCU_PLUS_SDK 08.05 release. Here is the link to C++ version used in the CCS (which uses TI-ARM-CLANG compiler).

    https://e2e.ti.com/support/tools/code-composer-studio-group/ccs/f/code-composer-studio-forum/740736/faq-compiler-which-c-standard-is-supported

    Dominik Ondra said:
    What is a reasonable boot-time on AM243x ? I know this depends on the application, flash and so on...
    However I just need an example of what is expected boot time.

    We have a data based on experimental purpose. Note the boot from Reset Release to SBL is not captured in the given data.

    SBL OSPI performance (GP Device)

    • Software/Application used : sbl_ospi and ipc_rpmsg_echo
    • Size of sbl_ospi image : 301 KB
    • Size of ipc_rpmsg_echo appimage : 113 KB
    • Cores present in the appimage : m4f0-0, r5f0-0, r5f0-1, r5f1-0, r5f1-1
    • Boot Media Clock : 166.667 MHz (Octal DDR mode)
    Boot time breakdown Time (ms)
    ROM : init + SBL load from flash 12.00
    SBL : SYSFW Load 12.23
    SBL : System Init 11.35
    SBL : Drivers_open 0.27
    SBL : Board_driversOpen 151.91
    SBL : Sciclient Get Version 10.01
    SBL : CPU Load 21.53
    ---------------------------------------- --------------
    SBL : Total time taken 207.33

    SBL SD performance (GP Device)

    • Software/Application used : sbl_sd and ipc_rpmsg_echo
    • Size of sbl_sd : 296 KB
    • Size of ipc_rpmsg_echo appimage : 142 KB
    • Cores present in the appimage : m4f0-0, r5f0-0, r5f0-1, r5f1-0, r5f1-1
    • SD card read speed : 12.5 MBps mode
    Boot time breakdown Time (ms)
    ROM : init + SBL load from flash 12.00
    SBL : SYSFW Load 12.26
    SBL : System Init 32.86
    SBL : Drivers_open 14.02
    SBL : Board_driversOpen 0.00
    SBL : Sciclient Get Version 10.02
    SBL : File read from SD Card 15.12
    SBL : CPU Load 10.84
    ---------------------------------------- --------------
    SBL : Total time taken 95.16

    Best Regards,
    Aakash

  • +1 in reply to Aakash Kedia
    TI__Mastermind 23543 points

    Hi ,

    Regarding part 2 of your question:

    Dominik Ondra said:

    Is there a way to determine what is the input Voltage level of SoC from within the running application?

    The AM243x devices have dedicated voltage monitoring (VMON) pins for key power rails. These are described in the device Datasheet (LINK).

  • 0 in reply to Fleenor
    Prodigy 150 points

    Hello guys,

    thank you very much for your response. This is exactly what we needed.

    Have a nice day

    Dominik