SPI an MSP430 (EZ430-RT2500)

P3OUT |= BIT0;

  P3DIR |= BIT0;

  UCB0CTL1 |= UCSWRST;

  UCB0CTL0 |= UCSYNC + UCMST;

  UCB0CTL1 |= UCSSEL0 + UCSSEL1;

  UCB0BR0 = 0x02;

  UCB0BR1 = 0x00;

  SPI_SPI_SEL;

  SPI_SPI_DIR;

  UCB0CTL1 &= ~UCSWRST;

  //UC1IE

  IE2 |= UCB0RXIE + UCB0TXIE;   //Interrupt enable

  //Reset des CC2500

  P3OUT |= BIT0;    //aus SLAU325

  TI_CC_Wait(30);

  P3OUT &= ~BIT0;

  TI_CC_Wait(30);

  P3OUT |= BIT0;

  TI_CC_Wait(45);

  P3OUT &= ~BIT0;

  IFG2 &= ~UCB0TXIFG;

  while(P3IN&SPI_PIN_SOMI);     

  UCB0TXBUF = 0x30;

  while (!(IFG2&UCB0TXIFG));      //Programm hängt         

  IFG2 &= ~UCB0RXIFG;

  while(!(IFG2&UCB0RXIFG));      //Programm hängt

  while(P3IN&SPI_PIN_SOMI);

  P3OUT |= BIT0;