#include    <msp430.h>

volatile    char    received_ch =   0;
int main(void)
{
	WDTCTL =   WDTPW   +   WDTHOLD;    //  Stop    WDT

	//	P1OUT  |=  BIT5;
	//	P1DIR  |=  BIT5;
	P1SEL  =   BIT5    |   BIT6    |   BIT7;
	P1SEL2 =   BIT5    |   BIT6    |   BIT7;

	UCB0CTL1   =   UCSWRST;
	UCB0CTL0   |=  UCCKPH  +   UCMSB   +   UCMST   +   UCSYNC; //  3-pin,  8-bit   SPI master
	UCB0CTL1   |=  UCSSEL_2;   //  SMCLK
	UCB0BR0    |=  0x02;   //  /2
	UCB0BR1    =   0;  //
	//	UCB0MCTL   =   0;  //  No  modulation
	UCB0CTL1   &=  ~UCSWRST;   //  **Initialize    USCI    state   machine**

	P1OUT  &=  (~BIT5);    //  Select  Device

	//	while(1){
	
	  while  (!(IFG2 &   UCB0TXIFG));    //  USCI_A0 TX  buffer  ready?
	  UCB0TXBUF  =   0xAA;   //  Send    0xAA    over    SPI to  Slave
	  while  (!(IFG2 &   UCB0TXIFG));    //  USCI_A0 TX  buffer  ready?
	  UCB0TXBUF  =   0x0F;   //  Send    0xAA    over    SPI to  Slave
	  __delay_cycles(10000);
	  //	}
	while  (!(IFG2 &   UCB0RXIFG));    //  USCI_A0 RX  Received?
	received_ch    =   UCB0RXBUF;  //  Store   received    data

	P1OUT  |=  (BIT5); //  Unselect    Device
}