MSP430F149学习之路——蓝牙模块

注意蓝牙模块的接法！

 1 #include <msp430x14x.h>
 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_VECTOR
41 __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 }