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Do All 6748 chips support secure AIS boot?

twicave Feng
Intellectual 850 points
Other Parts Discussed in Thread: TMS320C6748, OMAP-L138, OMAP-L132

Here is my chip info:

TMX320c6748ZWT

It seemed that It can not support secure AIS boot. 

I 'm using SPI_MASTER boot mode, I checked spi_flash's clock pin. after about 6 bytes reading, bootloader has halted.

  • 0
    Intellectual 850 points

    In that security Boot package, I can only found a exe file, which name is "SecureHexAIS_L138",

    It should have a file looks like "SecureHexAIS_c6748", isn't it?

  • 0
    Expert 1950 points

    Hello,

    For TI, the TMX prefix stands for first batch (pre-release) processor chips.

    Only TMS320C6748 chips with a "E" suffix like TMS320C6748BZWTD4E support secure boot (see OMAP-L1x Processor Security User’s Guide SPRUGQ9).

  • 0 in reply to Jakez
    TI__Genius 17355 points

    As Jakez stated, secure parts have their own distinct part number, so no not every C6748 part is a secure part.  Regarding the tool name, as the OMAP-L138 part is the "super-set" part among this family of devices, it is common for TI to use the OMAP-L138 name even when the tool will work for the ARM-only (AM18xx), DSP-only (C6748/6/2) and ARM+DSP (OMAP-L138/OMAP-L132) parts.

    Regards, Daniel

  • 0 in reply to Daniel Allred
    Intellectual 850 points

    thanks a lot ,

    the entire america web site 's reponse to customer's question is very quickly.

    It's very kind and helpful.

    Sooner,  the Chinese Spring festival is coming, the new totem is "Dragon". this question perhaps is my last question in old "Rabbit" year.

    I wish you have more successful work, and more happy family. 龙年大吉