串口通信UART(msp430g2553)430单片机

#include "io430.h"

#include "in430.h"

#include "shumaguan.h"

void UartPutchar(unsigned char c);

unsigned char UartGetchar();

unsigned char temp=0;

unsigned char number[2]={0};

void main( void )

{

WDTCTL = WDTPW + WDTHOLD; // Stop WDT

BCSCTL1 = CALBC1_1MHZ; // Set DCO

DCOCTL = CALDCO_1MHZ;

P1DIR|=BIT6;

P1OUT&=~BIT6;

P1SEL = BIT1 + BIT2; // P1.1为RXD, P1.2为TXD

P1SEL2 = BIT1 + BIT2; // P1.1为RXD, P1.2为TXD

UCA0CTL1 |= UCSSEL_2; // 选择时钟BRCLK

UCA0BR0 = 106; // 1MHz 9600

UCA0BR1 = 0; // 1MHz 9600

UCA0MCTL = UCBRS2 + UCBRS0; // 波特率=BRCLK/(UBR+(M7+...0)/8)

UCA0CTL1 &= ~UCSWRST; // 初始化顺序:SWRST=1设置串口，然后设置SWRST=0,最后设置相应中断

IE2 |= UCA0RXIE; // 使能接收中断

while(1)

{

//UartPutchar(9);

display_int(temp,0);

delay();

}

}

/**********************************UART接收中断********************************/

#pragma vector=USCIAB0RX_VECTOR

__interrupt void USCI0RX_ISR(void)

{

//while (!(IFG2&UCA0TXIFG)); // 等待发送完成