msp430 看门狗寄存器定义方式

 

__no_init volatile union
{
  unsigned short WDTCTL;   /* Watchdog Timer Control */

  struct
  {
    unsigned short WDTIS0          : 1; /*  */
    unsigned short WDTIS1          : 1; /*  */
    unsigned short WDTSSEL         : 1; /*  */
    unsigned short WDTCNTCL        : 1; /*  */
    unsigned short WDTTMSEL        : 1; /*  */
    unsigned short WDTNMI          : 1; /*  */
    unsigned short WDTNMIES        : 1; /*  */
    unsigned short WDTHOLD         : 1; /*  */
  }WDTCTL_bit;
} @ 0x0120;


enum {
  WDTIS0          = 0x0001,
  WDTIS1          = 0x0002,
  WDTSSEL         = 0x0004,
  WDTCNTCL        = 0x0008,
  WDTTMSEL        = 0x0010,
  WDTNMI          = 0x0020,
  WDTNMIES        = 0x0040,
  WDTHOLD         = 0x0080
};