Dashed Line in Libero SoC MSS

[Etri.Hong]

I am new in this field, and I follow the tutorial to add the UART_0 to the MSS, but it is a dashed line instead of solid line in the tutorial. After programming FPGA into the SmartFusion kit, when I debug in the SoftConsole, the thread is stuck at the mss_uart.c... I wonder whether the dashed line is the problem.
Please help me.

 

[shaiko]

https://www.microsemi.com/document-portal/doc_view/130849-libero-soc-v10-1-user
Page 405.