How should unused interrupt vectors be treated?|FAQ|ROHM Semiconductor

常見問題

How should unused interrupt vectors be treated?
- The occurrence of unused interrupt indicates an abnormal situation. We recommend fail-safe processing be executed, such as a reset by BRK instruction.
  The following shows an example.
  
  /**********************************************
  * Interrupt vector table
  **********************************************/
  static void int_NULL(void);
  　：
  
  #pragma INTERRUPT int_NULL 0x0C 1
  #pragma INTERRUPT int_NULL 0x0E 1
  　：
  
  /**********************************************
  * int_NULL
  **********************************************/
  static void int_NULL(void)
  {
  #pragma asm
  mov psw, #02h
  brk;
  #pragma endasm
  }
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