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processing "E:\renesas\dds311-485and IRD\DDS311\DDS311\Debug\mcu_init.r30"
processing "E:\renesas\dds311-485and IRD\DDS311\DDS311\Debug\resetprg.r30"
processing "E:\renesas\dds311-485and IRD\DDS311\DDS311\Debug\server.r30"
Warning (ln30): Software license problem:
Duration of Trial License of UNKNOWN is exhausted. (37)
Code limited to 64K (10000H) Byte(s)
DATA     0000450(001C2H) Byte(s)
ROMDATA  0000341(00155H) Byte(s)
CODE     0006012(0177CH) Byte(s)
The value of option function select register is FFH
E:\renesas\dds311-485and IRD\DDS311\DDS311\Debug\DDS311.map is modified
E:\renesas\dds311-485and IRD\DDS311\DDS311\Debug\DDS311.sni is created
Phase M16C Linker finished

这个Warning 是什么原因造成的，对程序有什么影响吗？
请高手指导