FVP Debug problems for Blinky Example project on Cortex-M4


I'm using ARM DS 2020, I have imported a Blinky Example Project for Cortex M4 STM32 Nucleo.

When I'm trying to build a model debug connection for it and run the project on FVP Fast Model, the debug process stuck at SystemCoreClockConfiguration part and I cannot step over this instruction as well. 

If I try to disable this function, it will be stuck in "startup_stm32f401xe.s" instead.

How can I set to run the Blinky program on the FVP CLCD window successfully?

Thank you very much!

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