pwm.c

msp430f169的key程序

#include "msp430x16x.h"

void Init_Clock() {
  unsigned int i;
  BCSCTL1=0x00;
  do {
    IFG1&=~OFIFG;
    for(i=0;i<20;i++);
  }while(IFG1&OFIFG);
  BCSCTL2=SELM1+SELS;
}

void Init_TimerB() {
  TBCTL=TASSEL1+TBCLR;
  TBCCTL2=OUTMOD_7;
  TBCCTL2=OUTMOD_7;
  TBCCR0=0x1000;
  TBCCR2=0x500;
  TBCCR3=0x500;
  P4DIR=BIT2+BIT3;
  P4SEL=BIT2+BIT3;
  TBCTL|=MC0;
}
   
void main( void )
{
  WDTCTL=WDTPW+WDTHOLD;
  Init_Clock();
  Init_TimerB();
  while(1);
}