调试时还没跑到用户程序，就出现如下错误，请教是什么原因？该如何解决？

A fatal error or exception has occurred.
  Description:   Parity error in L1 instruction bank C SRAM
  General Type:  ParityError
  Specific Type: InstrBankCSRAM
  General Code:  0xa
  Specific Code: 0x141
  Error Value:   0x00000030
  Error PC:      0xffa0641c

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