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Problem: BF547 booting from flash

Question asked by AlexG on Jan 25, 2012
Latest reply on Feb 7, 2012 by PrasanthR

Hi,

 

i´m trying to boot the BF547 from flash. We have a custom board with flash memory currently not supported by a driver. So i wrote the flash programmer driver myself and tested it successfully by writing different patterns and file formats into the flash memory (all programmer features are working fine).

I applied the linker settings according to "POST" example to create a loader file, which also seemed to work.

After programming the loader file to the flash i power down the board, change bootmode to "flash" and power up again.

But my testprogram doesn´t seem to start (no blinking LED).

In the meantime i tried a lot of different linker settings, but without success so far.

 

Does anybody have an idea what i´m doing wrong?

 

Regards

Alex

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