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TMS320C6657: Boot with a compressed image

Hitoshi Sugawara
Mastermind 19960 points
Part Number: TMS320C6657

Hi Experts,

Is there any methods to boot with a compressed program code?
I would like to make the image file smaller with compression.

If we have a processor which supports decompression in the device, please let me know.

Thank you for your kind advice.
Best regards,
Hitoshi

  • 0
    TI__Guru* 95265 points

    Hi,

    The C6657 boot info can be found:  

    What is the boot mode you intended to choose? 

    >>>>I would like to make the image file smaller with compression.>>>>>Do you compare with application ELF file size with the image used to boot? I knew in most boot cases, the ELF file needs to be converted to a different format by using TI tools. The converted file is used for boot and it is typically smaller, does this meet your compression requirement?

    Regards, Eric 

  • 0 in reply to lding
    TI__Mastermind 19960 points

    Hi Eric,

    Thank you for suggesting the resolution.
    It was confirmed that the binary file was smaller than the original out file.

    Is my understanding correct that it was compressed by the conversion?
    Currently, SPI Boot is utilized.
    Is the converted image extracted by the bootloader and copied to RAM?

    Am I making sense?

    Best regards,
    Hitoshi

  • 0 in reply to Hitoshi Sugawara
    TI__Guru* 95265 points

    Hi Hitoshi,

    >>>>Is my understanding correct that it was compressed by the conversion?>>>>Correct

    >>>>Is the converted image extracted by the bootloader and copied to RAM>>>>>>Correct

    All your understandings are correct.

    Regards, Eric

  • 0 in reply to lding
    TI__Mastermind 19960 points

    Hi Eric,

    Thank you so much for your kind clarification.
    It helps a lot.

    Best regards,
    Hitoshi