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寫上程序之后 4.4 接hc05藍牙模塊的 發(fā)送端 7.3 6.7接led 沒有反應
#include "msp430f5529.h"
unsigned char RXD_data;
void UART_Init()
{
P4SEL |= BIT5+BIT4;
P4DIR |= BIT4; //輸入
UCA1CTL1 |= UCSWRST;
UCA1CTL1 |= UCSSEL_1; //時鐘源是ACLK,32768,生成9600
UCA1BR0 = 3;
UCA1BR1 = 0;
UCA1MCTL |= UCBRS_3 + UCBRF_0;
UCA1CTL1 &= ~UCSWRST;
UCA1IE |= UCRXIE ; // 數據接收中斷
}
/**************************************
void Clock_Init() //配置時鐘 網上找的列程
{
P5SEL |= BIT2+BIT3+BIT4+BIT5; // Port select XT1
UCSCTL6 &= ~(XT1OFF); // XT1 On
UCSCTL6 &= ~(XT2OFF); // XT2 On
UCSCTL6 |= XCAP_3; // Internal load cap
do
{
UCSCTL7 &= ~(XT2OFFG + XT1LFOFFG + DCOFFG);
// Clear XT2,XT1,DCO fault flags
SFRIFG1 &= ~OFIFG; // Clear fault flags
}while (SFRIFG1&OFIFG); // Test oscillator fault flag
UCSCTL3 = SELREF_0+FLLREFDIV_0; // Set DCO FLL reference = XT2
__bis_SR_register(SCG0); // Disable the FLL control loop
UCSCTL1 = DCORSEL_7; // Select DCO range 16MHz operation
UCSCTL0 = 0x0000; // Set lowest possible DCOx, MODx
UCSCTL2 |= FLLD_0+488; // Set DCO Multiplier for 8MHz
// (15 + 1) * FLLRef = F_dcoclkdiv
// F_dcoclkdiv=F_dco
// (488+ 1) * 32768= 16MHz
__bic_SR_register(SCG0); // Enable the FLL control loop
__delay_cycles(250000);
UCSCTL4 |=SELA_0+SELS_5; //ACLK = 32768HZ,SMCLK= 1MHZ,MCLK= 16MHZ
UCSCTL5 |=DIVS_2; //4分頻
}
**************************************/
void main() // 主函數
{
WDTCTL |= WDTPW + WDTHOLD;
// Clock_Init();
UART_Init();
_EINT();
P6DIR |= BIT6; //定義針腳 輸出
P6DIR |= BIT7; //輸出
P7DIR|=BIT2; //輸出
P7DIR|=BIT3; //輸出
while(1)
{
switch(RXD_data)
{
case '1':
P7OUT|=BIT3; // 1
P6OUT|=BIT7; // 1
P6OUT&=~BIT6; // 0
P7OUT&=~BIT2; //0
break;
case '2':
P6OUT&=~BIT7; //0
P6OUT|=BIT6; //1
P7OUT&=~BIT3; //0
P7OUT|=BIT2; //1
break;
case '3':
P7OUT|=BIT3; // 1
P6OUT&=~BIT7; // 0
P6OUT&=~BIT6; // 0
P7OUT&=~BIT2; //0
break;
case '4':
P7OUT&=~BIT3; //0
P6OUT|=BIT7; // 1
P6OUT&=~BIT6; // 0
P7OUT&=~BIT2; //0
break;
case '5':
P6OUT&=~BIT7; //0
P6OUT&=~BIT6; //0
P7OUT&=~BIT2; //0
P7OUT&=~BIT3; //0
break;
default:
break;
}
}
}
#pragma vector=USCI_A1_VECTOR
__interrupt void USCI_A0_ISR(void) // 接收中斷
{
_DINT(); //先關上中斷，接收正確的數據
switch(__even_in_range(UCA0IV,4))
{
case 0:break;
case 2:
while(!(UCA0IFG&UCRXIFG));
RXD_data = UCA0RXBUF; //將接收緩存器的字符產送給發(fā)送緩存器
while(!(UCA0IFG&UCRXIFG));
break;
case 4:break;
default: break;
}
_EINT();
}
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