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IWR6843: ROM Bootloader: Write to RAM

Sebastian Brueckner
Intellectual 395 points
Part Number: IWR6843
Other Parts Discussed in Thread: UNIFLASH

The ROM bootloader documentation (www.ti.com/.../swra627.pdf) lists "write to ram" commands.

Can these be used to directly load and boot a MetaImage without using the external flash? That could be useful for unit tests that are reloaded very often. 

Once the 'write to ram' using the ROM bootloader is complete, how is the newly loaded firmware executed? I suspect that resetting device would cause the RAM to be erased.

Could you explain the use case for these bootloader commands?

Thanks

Sebastian

  • 0
    Intellectual 430 points

    Mark.  I am also interested in these questions. 

  • 0
    TI__Mastermind 23725 points

    Hello

    Seems like this thread was assigned different logical forum.  We will get back to you with a response on next working day.

    Thank you,

    Vaibhav

  • 0
    TI__Genius 17265 points

    Hi Sebastian,

    Yes, this should certainly be possible. If you look at the Bootmode – UART section of that document, most of the info there should be accurate to this setup. Specifically, make sure you do not include a CRC value. In terms of executing this firmware, I believe as soon as you pass the close command in, it will begin to eclipse the BootRom and start. On our side, I believe under the hood this method is what we use when debugging from CCS, but I know it's also possible to do this from a script similar to the command line version of Uniflash. Let me know if you have any further questions or issues.

    Best Regards,
    Alec