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Boot on external SDRAM - C6747 and C6748

DI NALLO Fabien
Prodigy 50 points
Other Parts Discussed in Thread: TMS320C6747

Hello,

We desgin a board with 2 processors inside.

The slave one is the TMS320C6747 (or C6748). At startup,  by the master processor, we want to load the software on external asynchronous SRAM and after the slave processor (C674x) can boot on it.

But on the datasheet, we don't see the possibility to boot on external SRAM. Is it Possible ?

Thanks for your support.

  • 0
    TI__Mastermind 35645 points

    Hi DI NALLO,

    Thanks for your post.

    Yes, you are right. It is not possible to boot on external SRAM. Only for other supported boot modes (NAND, NOR, HPI, UART, SPI, I2C) it may require to configure EMIF peripheral registers for SDRAM access.

    Please check the application report below for the detailed boot mechanisms supported by the C6747/45/43 bootloader read-only memory (ROM) image:

    http://www.ti.com/lit/an/sprabb1c/sprabb1c.pdf

    Thanks & regards,

    Sivaraj K

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  • 0
    Guru 26430 points

    Some inconsistency...the title of your post indicates SDRAM but the body of post says SRAM. If you mean dual ported static RAM, SRAM, you might be able to use NOR boot. In theory, SRAM should look the same as NOR memory to the bootloader.