Question

msp430f149连接蓝牙模块发送数据，但是用串口调试精灵接收不到数据，程序如下，求大神指导~

#include "msp430f149.h"

void main(void)
{
volatile unsigned int i;
WDTCTL = WDTPW + WDTHOLD; //关闭看门狗定时器
P3SEL=0x30;
ME1 |=UTXE0 + URXE0;
UCTL0 |=CHAR;
UTCTL0 |=SSEL0;
UBR00=0X0D;
UBR10=0X00;
UMCTL0=0X6B;
UCTL0 &= ~SWRST;
IE1 |= URXIE0;

_BIS_SR(LPM3_bits + GIE);

}
#pragma vector = UART0RX_VECTOR
__interrupt void usart0_rx (void)
{
while(!(IFG1 & UTXIFG0))
TXBUF0=RXBUF0;
｝
是不是少写了一段程序？

Answer 1

//创建一个串口通讯
SerialPort CurrentPort = null;
CurrentPort = new SerialPort();
CurrentPort.ReadBufferSize = 128;
CurrentPort.PortName = comName; //端口号
CurrentPort.BaudRate = bandRate; //比特率
CurrentPort.Parity =parity;//奇偶校验
CurrentPort.StopBits = stop;//停止位
CurrentPort.DataBits = databit;//数据位
CurrentPort.ReadTimeout = 1000; //读超时，即在1000内未读到数据就引起超时异常
//绑定数据接收事件，因为发送是被动的，所以你无法主动去获取别人发送的代码，只能通过这个事件来处理
CurrentPort.DataReceived += Sp_DataReceived;
CurrentPort.Open();

定义一个变量 byte[] receiveStr;

//绑定的事件处理函数
private static void Sp_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
SerialPort sp = sender as SerialPort;
if (sp == null)
return;
byte[] readBuffer = new byte[sp.ReadBufferSize];
sp.Read(readBuffer, 0, readBuffer.Length);

//赋值
receiveStr=readBuffer;//当然你可以通过转换将byte[]转换为字符串。
}

//你要求的按钮事件可以这么写
private void button1_Click(object sender, EventArgs e)
{
if(receiveStr!=null)
{
变量 xxx=receiveStr;
}
}

Answer 2

需要给你写一份吗