MSP430F5529单片机的P1.7、P2.2 io口中断和频率设置程序：

#include "msp430F5529.h"

#define P15_H    (P1IN & BIT5);
#define P15_L   (P1OUT & (~BIT5));
int tt=0,temp,kk,i;
void delay(int ns)
{
  int kk;
  while(ns--)
    for(kk=0;kk<120;kk++);
}
//******A/D转换函数设置*****//
void adc1()
{
 P1SEL |=BIT6;       //转换模拟信号从P1.6输入，内部集成了转换模块
 ADC12CTL0 =ADC12ON  + ADC12SHT02 + ADC12MSC;
 ADC12CTL1 =ADC12SHP + ADC12CONSEQ_2;
 ADC12MCTL0=ADC12SREF_0+ADC12INCH_6;
 ADC12CTL0 |=ADC12ENC;
//////一次转换结束后产生转换中断调用ADC中断函数////
}
void MainFre24M(void)
{
   UCSCTL3 |=SELREF__REFOCLK;
   __bis_SR_register(SCG0);     //disable the FLL control loop
   UCSCTL0=0X0000;//            //Set lowest possible DCOx,MODxSCG0
   UCSCTL1=DCORSEL_6;           //Select DCO range 24MHz opreation
                               //DCORSEL_x，其中x可选3、4、5、6、7
   UCSCTL3=FLLD_0+731;          //Set DCO Multiplier for 24MHz
                                //(N+1)*FLLRef=Fdco
                                //(731+1)*32768=24MHz
                               //Set FLL DIV =fDCOCLK/2
   __bis_SR_register(SCG0);                 //Enable the FLL control loopSCG0
   UCSCTL4 |=SELA__DCOCLK+SELS__XT1CLK+SELM__DCOCLK;//MCLK Source select
   UCSCTL5 |=DIVPA_2;                       //ACLK output divide
   UCSCTL6 |=XT1DRIVE_3+XCAP_0;             //XT1 cap
}
int main(void)
 {
   WDTCTL = WDTPW + WDTHOLD;   // Stop WDT
   MainFre24M();
   UCSCTL3=FLLD_0+731;
   UCSCTL1=DCORSEL_7;
   P1REN |=BIT7;
   P1OUT |=BIT7;
   P1IE |=BIT7;
   P1IES|=BIT7;
   P1IFG&=~BIT7;
 
   P2REN |=BIT2;
   P2OUT |=BIT2;
   P2IE |=BIT2;
   P2IES|=BIT2;
   P2IFG&=~BIT2;
   __enable_interrupt();
   P1DIR |= 0x3f;
   P1DS  |= 0x3f;
   while(1)
     {
       UCSCTL1=DCORSEL_3;
       P1OUT |=BIT5;
       delay(1000);
       P1OUT &=~BIT5;
       delay(1000);    
     } 
 }
#pragma vector=PORT1_VECTOR
__interrupt void PORT17ISR(void)
{
 int i;
 UCSCTL1=DCORSEL_7;
 UCSCTL3=FLLD_7+730;
 for(i=0;i<40;i++)
     {    
       P1OUT |=BIT0;
       delay(1000);
       P1OUT &= ~BIT0;
       delay(1000);    
     }
 P1IFG &=~BIT7;
}
#pragma vector=PORT2_VECTOR
__interrupt void PORT22ISR(void)
{
 int i;
 UCSCTL1=DCORSEL_7;
 UCSCTL3=FLLD_7+730;
 for(i=0;i<40;i++)
     {    
       P1OUT |=BIT3;
       delay(1000);
       P1OUT &= ~BIT3;
       delay(1000);    
     }
 P2IFG &=~BIT2;
}