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printf() cause strange functions in flash

Chris Jansen

I use the printf() function in my programm and I take a look in the new stack frame window from keil. I'm working with an ARM controller - but I don't know if that would be important to my question.

My stack frame window looks like:

send_character()
fputc()
100011b6()
10000925()
10001146()
10000dba()
main()

Could someone explain me the three number functions (I think they are generated by the use of printf())?

I can't see this functions in my symbol window so could there be a problem, that a data abort or something like that would happen?

Moreover the memory address is the address of the flash memory - so if that would always happen if I call printf() than the flash memory won't be written so oft...

thanks in advance for your information

Chris

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