void rf_init(){
//Reset pin p3.7 and Programming mode pin p3.6
P3DIR |= BIT6 + BIT7;
P3OUT &= ~BIT6;
rf_reset();
//configure UART 460800
P3SEL |= 0x30; // P3.4,5 = USCI_A0 TXD/RXD
//UCA0CTL1 |= UCSSEL_2; // SMCLC
UCA0CTL1 |= UCSSEL_1; // ACLC
UCA0BR0 = 34; // 16,000 MHz 460800
UCA0BR1 = 0;
UCA0MCTL = UCBRS2 + UCBRS1 + UCBRS0; // Modulation UCBRSx = 7
UCA0CTL1 &= ~UCSWRST; // **Initialize USCI state machine**
IE2 |= UCA0RXIE; // Enable USCI_A0 RX interrupt
}
void init_spi (void) {
GPIO_InitTypeDef GPIO_InitStructure;
SPI_InitTypeDef SPI_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
EXTI_InitTypeDef EXTI_InitStructure;
RCC_APB2PeriphClockCmd(
RCC_APB2Periph_GPIOA |
RCC_APB2Periph_AFIO |
RCC_APB2Periph_SPI1,
ENABLE
);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_6 | GPIO_Pin_5;
GPIO_Init(GPIOA, &GPIO_InitStructure);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_16b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_16;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);
SPI_SSOutputCmd(SPI1, ENABLE);
SPI_Cmd(SPI1, ENABLE);
/* Connect EXTI Line13 to PA6 - MISO I pin */
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA,GPIO_PinSource6);
EXTI_InitStructure.EXTI_Line = EXTI_Line6;
EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
EXTI_InitStructure.EXTI_LineCmd = ENABLE;
EXTI_Init(&EXTI_InitStructure);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0);
NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
raise_css();
rf_reset();
configure();
//send_strobe (TI_CCxxx0_SFSTXON);
//send_strobe (TI_CCxxx0_SRX);
//rf_send_byte (0x13);
//test_send();
// SPI_I2S_SendData(SPI1, TI_CCxxx0_SRES);
}
