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F5529硬件I2C硬件传输问题

hong wang10
Prodigy 20 points
Other Parts Discussed in Thread: MSP430F169, MSP430F5529

我用msp430f169做主机传送一个数据给从机msp430f5529，现在发送主机是正常发送数据了，但是从机卡在中断入口，怎么都不进中断，上拉电阻也加了，请给我帮帮我分析分析把！！！！！主机程序：

 #include <msp430.h>
/ar TXData = 0;
int main (void)
{

  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  P3SEL |= 0x0A;                            // Select I2C pins
  P1OUT |= 0x00;
  U0CTL |= I2C + SYNC;                      // Recommended init procedure
  U0CTL &= ~I2CEN;                          // Recommended init procedure
  I2CTCTL |= I2CSSEL1;                      // SMCLK
  I2CNDAT = 0x01;                           // Write one byte
  I2CSA = 0x0048;                           // Slave Address is 048h
  I2CIE = TXRDYIE;                          // Enable RXRDYIFG interrupt
  U0CTL |= I2CEN;                           // Enable I2C
//  I2CDCTL |=0x00;
  __enable_interrupt();                     // Enable interrupts

  while (1)
  {
    U0CTL |= MST;                           // Master mode
    I2CTCTL |= I2CSTT + I2CSTP + I2CTRX;    // Initiate transfer
    __bis_SR_register(CPUOFF);              // Enter LPM0
  }

}

// Common ISR for I2C Module
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=USART0TX_VECTOR
__interrupt void I2C_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(USART0TX_VECTOR))) I2C_ISR (void)
#else
#error Compiler not supported!
#endif
{

     I2CDRB = 0x5A;                         // TX data
     while (I2CBUSY & I2CDCTL);             // I2C ready?
     P1OUT |= 0x01;
     P1DIR |= 0x01;
     __bic_SR_register_on_exit(CPUOFF);     // Clear LPM0

}
从机程序：
 #include <msp430.h>

volatile unsigned char RXData;

int main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  P3SEL |= 0x03;                            // Assign I2C pins to USCI_B0
  P1OUT = 0;
  UCB0CTL1 |= UCSWRST;                      // Enable SW reset
  UCB0CTL0 = UCMODE_3 + UCSYNC;             // I2C Slave, synchronous mode
  UCB0I2COA = 0x48;                         // Own Address is 048h
  UCB0CTL1 &= ~UCSWRST;                     // Clear SW reset, resume operation
  UCB0IE |= UCRXIE;                         // Enable RX interrupt

  while (1)
  {
    __bis_SR_register(LPM0_bits + GIE);     // Enter LPM0, enable interrupts从机就停在这里了，请问是哪里不对啊！！！！！
    __no_operation();                       // Set breakpoint >>here<< and read
  }                                         // RXData
}

// USCI_B0 Data ISR
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector = USCI_B0_VECTOR
__interrupt void USCI_B0_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(USCI_B0_VECTOR))) USCI_B0_ISR (void)
#else
#error Compiler not supported!
#endif
{                                  // Vector 10: RXIFG
    RXData = UCB0RXBUF;                     // Get RX data
    P1DIR |= 0X01;
    P1OUT =0x01;
    __bic_SR_register_on_exit(LPM0_bits);   // Exit LPM0

}