My own BOOTLOADER with STM32F0

[lisa]

Posted on April 16, 2015 at 15:59

Hi!

 I'm  using MTF32F030R8 and I need to   develope  my own bootloader.  I use the first 8K of flash for bootloader (from 0x800000 to 0x8001FFF) and from 0x8002000 my SW  application. I'm not finding how to set the interrupt vector table at a different address than 0x00000000. Is it possible? How can i do? Thank you Lisa

[Tesla DeLorean]

Posted on April 16, 2015 at 17:21

You can't relocate the vector table.

What you have to do is copy it to the base of RAM, in a space you've carved out, and map the RAM at ZERO.Look for some IAP examples, or other thread's I've posted to on the forum on this topic.

[Andrei Chichak]

Posted on April 16, 2015 at 18:07

I haven't tried this, but -

There is a register called VTOR, the vector table offset register, that holds a 30 bit offset that is used to calculate the address of the vector table. VTOR points at a 128 ''word'' aligned table, you will have to figure out what a word is in this architecture.This sort of thing is essential when working with bootloaders and RTOS'.The 68000 family had a register called VBR, the vector base register, that did the same thing.

[Tesla DeLorean]

Posted on April 17, 2015 at 03:07

There is a register called VTOR....

And the Cortex-M0 doesn't have this.

[Tesla DeLorean]

Posted on April 17, 2015 at 03:11

Thread that's on point, there are others too, use Google the search here sucks.

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