fengming.c

设置MPS单片机的时钟源

#include <msp430x16x.h>
typedef unsigned int uint;
void main()
{ 
 uint i;
 WDTCTL=WDTPW+WDTHOLD;
 BCSCTL1|=XTS;
 P2DIR|=0x01;
 P2SEL|=0x01;
 P4DIR|=0x0c;
 
 
 P4OUT&=0xFE;
 
 do{
    IFG1&=~OFIFG;
    for(i=0xFF;i>0;i--);
    }
  while((IFG1&OFIFG));
  BCSCTL2|=SELM1+SELM0;
  for(;;)
  {
   P4OUT |=0x08;
  // for(i=0x20;i>0;i--);
   P4OUT |=0x00;
   }
   }