4.5.c

MSP430单片机的经典C语言例子

#include <msp430x14x.h>

void main(void)
{
       WDTCTL  =  WDTPW  +  WDTHOLD;
       UCTL0   =  CHAR;
       UTCTL0  =  SSEL0;
       UBR00   =  0X0D;
       UBR10   =  0X00;
       UMCTL0  =  0X6B;
       ME1    |=  UTXE0  +  URXE0;
       IE1    |=  URXIE0;
       P3SEL  |=  0X30;
       P3DIR  |=  0X10;
       _EINT();
       for(; ;)
        {
            _BIS_SR(LPM3_bits);
            _NOP();
        }    

}

#pragma vector=UART0RX_VECTOR
__interrupt  void usart0_rx (void)
{
   while((IFG1&UTXIFG0)==0)
   TXBUF0=RXBUF0;
}