MSP430串口接纳发送中止程序

#include <msp430x14x.h>

unsigned char RecBuf[255]; //接纳数据缓存
unsigned char *SDat; //指向要发送的数据
unsigned char Rindex; //接纳数据计数
unsigned char Tindex; //发送数据计数
unsigned char SendLen; //发送数据长度

void ConfigUart0()
{
P3SEL |= 0x30; // 挑选P3.4和P3.5做UART通讯端口
ME1 |= UTXE0 + URXE0; // 使能USART0的发送和承受
UCTL0 |= CHAR; // 挑选8位字符

UTCTL0 |= SSEL1; // UCLK = SMCLK
UBR00 = 0xD0; // 波特率9600
UBR10 = 0x00; //
UMCTL0 = 0x40; // Modulation
UCTL0 &= ~SWRST; // 初始化UART状态机
IE1 |= URXIE0 + UTXIE0; // 使能USART0的收发中止
}

void main(void)
{
unsigned int i;

WDTCTL = WDTPW + WDTHOLD; // 封闭看门狗
BCSCTL1 &= ~XT2OFF; //使TX2有用，TX2上电默许是封闭的
do
{
IFG1 &= ~OFIFG; //铲除振荡器失效标志
for(i=0xff;i>0;i–); //延时，待安稳
}
while((IFG1 & OFIFG)!=0); //若振荡器失效标志有用
BCSCTL2 |= SELM1; //使MCLK=XT2
BCSCTL2 |= SELS+DIVS1; //SMCLK=XT2,4分频，即2MHZ

BoardConfig(0xb8); // 封闭数码管、流水灯和电平转化
ConfigUart0(); //装备UART0
_EINT(); //翻开大局中止

while(1)
{
LPM1;
}
}

#pragma vector = UART0RX_VECTOR
__interrupt void UART0_RXISR(void)
{
RecBuf[Rindex++] = RXBUF0;
if(RecBuf[Rindex-1]==0xfe) //接纳结束
{
SendLen = Rindex;
Rindex=0;
if(RecBuf[0]==0xfd) //帧头正确
{
LPM1_EXIT;
SDat = RecBuf;
IFG1 |= UTXIFG0; // 设置中止标志，进入发送中止程序
}
}
}

#pragma vector = UART0TX_VECTOR
__interrupt void UART0_TXISR(void)
{

if(Tindex < SendLen)
{
TXBUF0 = *(SDat+Tindex);
Tindex++;
}
else
{
Tindex=0;
//LPM1;
}

}