error: undefined reference to '__aeabi_uidiv'

http://stackoverflow.com/questions/6576517/what-is-the-cause-of-not-being-able-to-divide-numbers-in-gcc

/media/data/Projects/arm/uart/main.c:39: undefined reference to `__aeabi_uidiv'

Answers

The ARM family of CPUs does not have a native integer division instruction. So, division needs to be implemented by a library function. GCC knows this, and creates a reference to (in your case) __aeabi_uidiv (for unsigned int division).

You will need to link with an appropriate runtime support library that contains this function.

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