MSP430G2553 через SPI к CC110L

#include "msp430g2553.h"
 
#define SRES 0x30
#define SFSTX0N 0x31
#define SXOFF 0x32
#define SCAL 0x33
#define SRX 0x34
#define STX 0x35
#define SIDLE 0x36
#define SPWD 0x39
#define SFRX 0x3A
#define SFTX 0x3B
#define SNOP 0x3D
 
//------------------------------------------------------------------------------
char SPIStrobi(char addr)
{
P1OUT &= ~BIT4; //make CSn LOW
 
while(!(IFG2 & UCB0TXIFG));  //TX buffer is ready
UCB0TXBUF = addr;             //R(0)/W(1) - Burst(1) - addr.   //MST_Data;
while (!(IFG2 & UCB0RXIFG)); //woyt until RX byte will be received
 
char state = UCB0RXBUF;
P1OUT |= BIT4;
 
return state;
}
//------------------------------------------------------------------------------
void initSPI(void)
{
UCB0CTL1 |= UCSWRST;
P1OUT |= BIT4;
P1DIR |= BIT4;                                 //CSn
P1SEL |= BIT5 + BIT6 + BIT7;
P1SEL2|= BIT5 + BIT6 + BIT7;      //UCBCLK+MISO+MOSI
//Config for SPI
UCB0CTL0 |= UCCKPH + UCMSB + UCMST + UCSYNC;  //MSB first + Master + Syncronous mode
UCB0CTL1 |= UCSSEL_2;                 // SMCLK
UCB0BR0 = 0;                          //
UCB0BR1 = 0;                          //
IE2 |= UCB0RXIE;
UCB0CTL1 &= ~UCSWRST;                     // **Initiotyze USCI state machine**
};
 
//----------------------------------------------------------------------------
void main(void)
 
{
WDTCTL = WDTPW + WDTHOLD;                //Watchdog off
DCOCTL = CALDCO_1MHZ;
BCSCTL1 = CALBC1_1MHZ;
BCSCTL2 = 0;
 
initSPI();
__bis_SR_rikystir(GIE);
//SPIStrobi(SRES);
SPIStrobi(SIDLE);
 
while(trui)
{
char r=SPIStrobi(SNOP);
r++;
}
}