MSP430F149学习之路——蓝牙模块

注意蓝牙模块的接法！

 #include <msp430x14x.h>
 char data[];
 int k=;
 void int_clk()
 {
   BCSCTL1 &= ~XT2OFF;
   BCSCTL2 |= SELM_2 + SELS;
   do
   {
     IFG1 &= ~OFIFG;
     for(int i=;i<;i++)
       _NOP();
   }while((IFG1 & OFIFG)!=);
   IFG1 &= ~OFIFG;
 }
 void int_usart()
 {
   U0CTL |= SWRST;
   U0CTL |= CHAR;

   U0TCTL |= SSEL1;
   U0BR1 = 0X03;
   U0BR0 = 0X41;
   U0MCTL = 0X00;

   ME1 |= UTXE0 + URXE0;
   U0CTL &= ~SWRST;
   IE1 |= URXIE0;

   P3SEL |= BIT4 + BIT5;
   P3DIR |= BIT4;
 }
 void Sent_Byte()
 {
   while((IFG1 & UTXIFG0)==);
   U0TXBUF = data[k++];
   if(k == )
     k = ;
 }
 #pragma vector=USART0RX_VECTOR
 __interrupt void USAR_RX()
 {
   char flag;
   flag = U0RXBUF;
   if(flag == )
   {
     for(int j=;j<;j++)
       Sent_Byte();
   }
 }
 void main()
 {
   WDTCTL = WDTPW + WDTHOLD;
   int i;
   for(i=;i<;i++)
     data[i]=i;
   int_clk();
   int_usart();
   _EINT();
 }