Re: Can the RESET_VECTOR be redefined at compile time to a specific value?

2014-04-18 22:23 GMT+02:00 Peter Bigot <[email protected]>:
> Re-reading your original post, I had focused on your last sentence,
> which in context wasn't the right question.
>
> You don't change anything in the boot loader.  You replace the
> memory.ld script for applications with one that puts the .vectors
> region somewhere other than 0xff80, and keeps the flash size and
> offset from overlapping the bootloader.   The bootloader then copies
> from the application .vectors into RAM.  No need to change the main
> linker script at all, just provide a different memory.ld.

I guess that is the recipe for the vector table stored in RAM
(SYSRIVECT bit of SYSCTL set). I already did this and it works ok,
although I let the application to register its interrupt handlers
itself, the SYSRIVECT is set by the bootloader.

But still I need to know if it's doable to make the bootloader use
just reset vector and the application to define all interrupts except
reset. It's like to create the application that has no init, I'm ok
with it because I know the bootloader has and expect the bootloader to
be called every time the MCU powers up.
Of course I can program only by bootloader (and then intentionally
skip 0xFFFE address) but I wanted a handy and convenient solution that
could be flashed with mspdebug.

Thanks for your help!

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