// Get ID from rotary dip and return it. 

 uint8_t io_getModuleId();	// Get ID from rotary dip and return it.

/* 

 * 

 *

 *

 *

 *

 *

 */

#include "spi.h"

void setup_spi(uint8_t mode, int dord, int interrupt, uint8_t clock)

{

  // specify pin directions for SPI pins on port B

  if (clock == SPI_SLAVE) { // if slave SS and SCK is input

    DDRB &= ~(1<<SPI_MOSI_PIN); // input

    DDRB |= (1<<SPI_MISO_PIN); // output

    DDRB &= ~(1<<SPI_SS_PIN); // input

    DDRB &= ~(1<<SPI_SCK_PIN);// input

  } else {

    DDRB |= (1<<SPI_MOSI_PIN); // output

    DDRB &= ~(1<<SPI_MISO_PIN); // input

    DDRB |= (1<<SPI_SCK_PIN);// output

    DDRB |= (1<<SPI_SS_PIN);// output

  }

  SPCR0 = ((interrupt ? 1 : 0)<<SPIE0) // interrupt enabled

    | (1<<SPE0) // enable SPI

    | (dord<<DORD0) // LSB or MSB

    | (((clock != SPI_SLAVE) ? 1 : 0) <<MSTR0) // Slave or Master

    | (((mode & 0x02) == 2) << CPOL0) // clock timing mode CPOL

    | (((mode & 0x01)) << CPHA0) // clock timing mode CPHA

    | (((clock & 0x02) == 2) << SPR10) // cpu clock divisor SPR1

    | ((clock & 0x01) << SPR00); // cpu clock divisor SPR0

  SPSR0 = (((clock & 0x04) == 4) << SPI2X0); // clock divisor SPI2X

}

void disable_spi()

{

  SPCR0 = 0;

}

uint8_t send_spi(uint8_t out)

{

  SPDR0 = out;

  while (!(SPSR0 & (1<<SPIF0)));

  return SPDR0;

}

uint8_t received_from_spi(uint8_t data)

{

  SPDR0 = data;

  return SPDR0;

}

/* 

 *

 *

 *

 *

 *

 */

#ifndef SPI_H_

#define SPI_H_

#include <avr/io.h>

#define SPI_SS_PIN PORTB4

#define SPI_SCK_PIN PORTB7

#define SPI_MOSI_PIN PORTB5

#define SPI_MISO_PIN PORTB6

// SPI clock modes

#define SPI_MODE_0 0x00 /* Sample (Rising) Setup (Falling) CPOL=0, CPHA=0 */

#define SPI_MODE_1 0x01 /* Setup (Rising) Sample (Falling) CPOL=0, CPHA=1 */

#define SPI_MODE_2 0x02 /* Sample (Falling) Setup (Rising) CPOL=1, CPHA=0 */

#define SPI_MODE_3 0x03 /* Setup (Falling) Sample (Rising) CPOL=1, CPHA=1 */

// data direction

#define SPI_LSB 1 /* send least significant bit (bit 0) first */

#define SPI_MSB 0 /* send most significant bit (bit 7) first */

// whether to raise interrupt when data received (SPIF bit received)

#define SPI_NO_INTERRUPT 0

#define SPI_INTERRUPT 1

// slave or master with clock diviser

#define SPI_SLAVE 0xF0

#define SPI_MSTR_CLK4 0x00 /* chip clock/4 */

#define SPI_MSTR_CLK16 0x01 /* chip clock/16 */

#define SPI_MSTR_CLK64 0x02 /* chip clock/64 */

#define SPI_MSTR_CLK128 0x03 /* chip clock/128 */

#define SPI_MSTR_CLK2 0x04 /* chip clock/2 */

#define SPI_MSTR_CLK8 0x05 /* chip clock/8 */

#define SPI_MSTR_CLK32 0x06 /* chip clock/32 */

// setup spi

void setup_spi(uint8_t mode,   // timing mode SPI_MODE[0-4]

	       int dord,             // data direction SPI_LSB|SPI_MSB

	       int interrupt,        // whether to raise interrupt on recieve

	       uint8_t clock); // clock diviser

// disable spi

void disable_spi(void);

// send and receive a byte of data (master mode)

uint8_t send_spi(uint8_t out);

// receive the byte of data waiting on the SPI buffer and

// set the next byte to transfer - for use in slave mode

// when interrupts are enabled.

uint8_t received_from_spi(uint8_t out);

#endif /* SPI_H_ */

 #include <inttypes.h>

 void modules_setup(uint8_t id)

 {

	switch(id)

	{

		case 0:

			modules_generic_setup();

			break;

		case 1:

			modules_sensors_setup();

			break;

		case 2:

			modules_geiger_setup();

			break;

		case 3:

			modules_cameras_setup();

			break;

		default:

			modules_generic_setup();

			break;

	}

 }

 void modules_run(uint8_t id)

 {

	 switch(id)

	 {

		 case 0:

			modules_generic();

			break;

		 case 1:

			modules_sensors();

			break;

		 case 2:

			modules_geiger();

			break;

		 case 3:

			modules_cameras();

			break;

		 default:

			modules_generic();

			break;

	 }

 }

 void modules_generic_setup()

 {

 }

 void modules_sensors_setup()

 {

 }

 void modules_geiger_setup()

 {

 }

 void modules_cameras_setup()

 {

 }

	// Gathers data and performs functions for generic daughter board

	// Gathers data and performs functions for sensor daughter board

	// Gathers data and performs functions for geiger daughter board

	// Gathers data and performs functions for cameras daughter board

 void modules_setup(uint8_t id);

 void modules_run(uint8_t id);

 // Setup functions for microcontroller configuration per specific daughter board

 void modules_generic_setup();

 void modules_sensors_setup();

 void modules_geiger_setup();

 void modules_cameras_setup();

 // Data acquisition for specific daughter board

#include "modules.h"

#include "lib/spi.h"

	modules_setup(moduleID);

		modules_run(moduleID);

        //serial_SendCommand('0','A',0,0);	//DEBUG: EXAMPLE

        //i2c_write(RTC_ADDR, 0x05, 0x3A);	//DEBUG: EXAMPLE

        _delay_ms(10);

        temp = i2c_read(RTC_ADDR, 0x02);		//DEBUG: EXAMPLE: seconds

        PORTA = temp;		//DEBUG

    <Compile Include="lib\spi.c">

      <SubType>compile</SubType>

    </Compile>

    <Compile Include="lib\spi.h">

      <SubType>compile</SubType>

    </Compile>