void ds18b20Init(uint32_t portNumber, uint32_t bitPosition, volatile uint32_t *ioconReg) {
portNum = portNumber;
bitPos = bitPosition;
timer16Init(1, TIMER16_DEFAULTINTERVAL);
timer16Enable(1);
gpioSetPullup(ioconReg, gpioPullupMode_Inactive);
}
void chb_drvr_init()
{
// ToDo: Make sure gpioInit has been called
// ToDo: Make sure CT32B0 has been initialised and enabled
// config SPI for at86rf230 access
chb_spi_init();
// Setup 16-bit timer 0 (used for us delays)
timer16Init(0, 0xFFFF);
timer16Enable(0);
// Set sleep and reset as output
gpioSetDir(CHB_SLPTRPORT, CHB_SLPTRPIN, 1);
gpioSetDir(CHB_RSTPORT, CHB_RSTPIN, 1);
// configure IOs
gpioSetValue(CHB_SLPTRPORT, CHB_SLPTRPIN, 1); // Set sleep high
gpioSetValue(CHB_RSTPORT, CHB_RSTPIN, 1); // Set reset high
// Set internal resistors
gpioSetPullup (&CHB_SLPTRPIN_IOCONREG, gpioPullupMode_Inactive);
gpioSetPullup (&CHB_RSTPIN_IOCONREG, gpioPullupMode_Inactive);
// config radio
chb_radio_init();
}
//Initializes the SPI module of the AVR to work with the NORDIC
void init_nordic_spi() {
//Configure IO Directions
// config CSN pin
IOCON_JTAG_TDO_PIO1_1 &= ~IOCON_JTAG_TDO_PIO1_1_FUNC_MASK;
IOCON_JTAG_TDO_PIO1_1 |= IOCON_JTAG_TDO_PIO1_1_FUNC_GPIO;
gpioSetDir(1, NORDIC_CSN, gpioDirection_Output);
// config CE pin
IOCON_JTAG_nTRST_PIO1_2 &= ~IOCON_JTAG_nTRST_PIO1_2_FUNC_MASK;
IOCON_JTAG_nTRST_PIO1_2 |= IOCON_JTAG_nTRST_PIO1_2_FUNC_GPIO;
gpioSetDir(1, NORDIC_CE, gpioDirection_Output);
// config IRQ pin - needs to be input actually.
IOCON_JTAG_TMS_PIO1_0 &= ~IOCON_JTAG_TMS_PIO1_0_FUNC_MASK;
IOCON_JTAG_TMS_PIO1_0 |= IOCON_JTAG_TMS_PIO1_0_FUNC_GPIO;
//Edited to be input
gpioSetDir(1, NORDIC_IRQ, gpioDirection_Input);
//Drive nCS HIGH
NORDIC_CSN_HIGH();
//Configure UART1 in SPI MODE
//CPOL and CPHA both at 0?
//SCK should normally be low. And the clock samples data in the middle of data bits,
sspInit (0, sspClockPolarity_Low, sspClockPhase_RisingEdge);
timer16Init(0, TIMER16_DEFAULTINTERVAL);
}
