[En-Nut-Discussion] possible bug in fopen?

[uprinz]

Hi!

I am trying to implement sort of a bootloader. For that I start a
mini-Nut/OS that does some things to detect and validate an image of another
Nut/OS in the flash of my cortex. Unfortunately the start of the image
always ends in a hardfault.

While debugging with insight-gdb I can see, that the bootloader initialized
the USART and does an fopen call. Right after the fopen there is an USART
interrupt fired. This isn't what I expected as at that point no printf ever
has been called.

So I think it is not related to stm32 USART implementation but to a problem
in fopen.

Any idea?

Ulrich

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Best regards
Ulrich
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