Can't run any program that uses floating point arithmetic in STM32F4219 (Cortex M4)
This problem can be marked as solved.
I forgot to code SysTicck ISR. Then, as used floating point operations takes more time than a 1ms, the SysTick ISR is launched and serviced by the DefaultHandler that loops forever doing nothing.
Once I placed a breakpoint at this function, I discovered the issue.
Regards.