Error to execute QEMU on Eclipse with STM32F429
Your program is attempting to use functionality unsupported by the simulator.

The message tells you at exactly which line of which source file the offending attempt is made.

You will have to avoid this, or pursue it with the authors of the board simulator.

Generally speaking, simulating things like this is a bit unusual - it can be fun, but most would test on the real hardware, possible with an SWD debugger (which is already on that board) connected.