Hey Guys,
I'm trying to read a single register (Part Number wich is adressed as 0x30) from the CC2500 using a msp430f2471 but i keep getting the value 0x0F in the BUFFER.
int main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
P1DIR |= 0x01; // P1.0 output
P3SEL |= 0x0E; // P3.3,2,1 USCI_B0 option select
P3DIR |= 0x11; // P3.1,0 as output direction
UCB0CTL0 |= UCMSB + UCMST + UCSYNC +UCCKPH; // 3-pin, 8-bit SPI mstr, MSB 1st
UCB0CTL1 |= UCSSEL_2; // SMCLK
UCB0BR0 = 0x02;
UCB0BR1 = 0;
UCB0CTL1 &= ~UCSWRST; // **Initialize USCI state machine**
char x;
P3OUT &= ~0x01; // Enable CS
while (!(IFG2 & UCB0TXIFG)); // USCI_B0 TX buffer ready?
UCB0TXBUF = (0x30 | 0xC0); // Send reg address
while (!(IFG2 & UCB0TXIFG)); // Wait for TXBUF ready
UCB0TXBUF = 0;
while (UCB0STAT & UCBUSY); // Wait for SPI done
x = UCB0RXBUF;
P3OUT |= 0x01; // Disable CS
return x;
}
Can you help me?
Thanks
Daniel Zurita
