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SPI Boot Details for TMS320C674

Paul Joseph
Expert 2795 points

For the TMS320C674, and for SPI boot (in slave mode), how does this work?

 

Does the Host simple place data into the DSP and it is placed in the DSP in Memory?

 

How can I get details on this mode of booting please

  • 0 in reply to Arvind Singh
    Expert 2795 points
    How can we from the SPI load an image into Memory? I believe the answer is yes.

    1) Is the boot loader in the DSP a part of ROM? Or does it have to Flashed into the device? Please see below:
    “When booting from an external host processor, the host acts as the communication master, and the bootloader acts as the slave. Since the bootloader doesn’t have direct access to the AIS, the host processor must transfer it to the bootloader through a well-defined protocol explained in the following sections. An AIS interpreter is required on the host processor to control this transfer.”
    2) Is the Boot mode (SPI HOST MASTER) completely configured by strapping options or does th DSP requires some Flashing for this Mode?
    3) How does the Bootloader determines what memory to place the boot image in? How does the Boo loader know the EMIF configuration to write to boot image to memory?