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AM2434: Guide for producing a bootable SD Card image?

Andrew Kirby1
Prodigy 240 points
Part Number: AM2434


I am looking for information or step-by-step instructions  on generating a bootable SD Card image for AM2434 on Windows build hosts?

Can anyone help?

Thanks

Andy

  • 0 in reply to Prashant Shivhare
    Prodigy 240 points

    The page essentially says that a bootloader can be built and when it is built and executed, it will look for file(s) on the FAT partition of the SD Card. This relies on the bootloader example being flashed into OSPI or other memory.

    What it does NOT tell you is how to boot directly from the SD Card: There is a link which promises to tell you, but the linked page just describes flashing the OSPI flash from the UART.

    So the example is intended to be loaded into OSPI, which then boots a secondary bootloader and then loads the images from SD Card.

    What I am after is how to make an SD Card that will natively boot without requiring OSPI.  The AM2434 has a bootmode which allows booting direct from SD.  Creating an SD Card that works with this bootmode is what I am looking for.

  • 0 in reply to Andrew Kirby1
    TI__Guru 72311 points
    Andrew Kirby1 said:
    What I am after is how to make an SD Card that will natively boot without requiring OSPI.  The AM2434 has a bootmode which allows booting direct from SD.  Creating an SD Card that works with this bootmode is what I am looking for.

    The SBL_SD bootloader is exactly provided for this purpose.

    For booting entirely from SD card, it should have the following images in the first partition formatted as FAT

    • tiboot3.bin: In the SD card bootmode, the ROM looks for an image named tiboot3.bin in the FAT partition. If found, it loads and boots the same. So, you would copy the SBL_SD image in the FAT partition as tiboot3.bin.
    • app: The SBL_SD bootloader once boots looks for an image named app. If found, it loads and boots the same.

    Regards,

    Prashant