msp430f5529的uart程序

发送  不停的发的时候这个是在主函数while中实现的
#include <msp430.h>
typedef unsigned char uchar;
typedef unsigned int  uint;

void Delays(void)
{
    uchar i=20;
    uint j;

    while(i--)
    {
            j=2000;
            while(j--);
    }
}

int main(void)
{
 
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT

  P4SEL |= BIT4+BIT5;                       // P3.3,4 = USCI_A0 TXD/RXD
  UCA1CTL1 |= UCSWRST;                      // **Put state machine in reset**复位使能
  UCA1CTL1 |= UCSSEL_2;                     // SMCLK   选取SMLK时钟
  UCA1BR0 = 9;                              // 1MHz 115200 (see User's Guide)1M/115200=8.68，四舍五入为9
  UCA1BR1 = 0;                              // 1MHz 115200   高八位为零
  UCA1MCTL |= UCBRS_1 + UCBRF_0;            // Modulation UCBRSx=1, UCBRFx=0                                                       
  UCA1CTL1 &= ~UCSWRST;                     // **Initialize USCI state machine**
  UCA1IE |= UCRXIE;                         // Enable USCI_A0 RX interrupt

  
  while(1)
  {
    
    UCA1TXBUF=0x01;
    Delays();
    
 //  __bis_SR_register(GIE);
//  __bis_SR_register(LPM0_bits + GIE);       // Enter LPM0, interrupts enabled
  __no_operation();                         // For debugger
  }
}


接收部分
#include <msp430.h>
typedef unsigned char uchar;
typedef unsigned int  uint;

void Delays(void)
{
    uchar i=20;
    uint j;

    while(i--)
    {
            j=2000;
            while(j--);
    }