注意蓝牙模块的接法！

1 #include 
     
       2 char data[100]; 3 int k=0; 4 void int_clk() 5 { 6   BCSCTL1 &= ~XT2OFF; 7   BCSCTL2 |= SELM_2 + SELS; 8   do 9   {10     IFG1 &= ~OFIFG;11     for(int i=0;i<100;i++)12       _NOP();13   }while((IFG1 & OFIFG)!=0);14   IFG1 &= ~OFIFG;15 }16 void int_usart()17 {18   U0CTL |= SWRST;19   U0CTL |= CHAR;20   21   U0TCTL |= SSEL1;22   U0BR1 = 0X03;23   U0BR0 = 0X41;24   U0MCTL = 0X00;25   26   ME1 |= UTXE0 + URXE0;27   U0CTL &= ~SWRST;28   IE1 |= URXIE0;29   30   P3SEL |= BIT4 + BIT5;31   P3DIR |= BIT4;32 }33 void Sent_Byte()34 {35   while((IFG1 & UTXIFG0)==0);36   U0TXBUF = data[k++];37   if(k == 100)38     k = 0;39 }40 #pragma vector=USART0RX_VECTOR41 __interrupt void USAR_RX()42 {43   char flag;44   flag = U0RXBUF;45   if(flag == 1)46   {47     for(int j=0;j<100;j++)48       Sent_Byte();49   }50 }51 void main()52 {53   WDTCTL = WDTPW + WDTHOLD;54   int i;55   for(i=0;i<100;i++)56     data[i]=i;57   int_clk();58   int_usart();59   _EINT();60 }