/*

 * config.h

 *

 * Created: 10/25/2012 10:00:09 PM

 *  Author: mkanning

 */

 #ifndef CONFIG_H_

 #define CONFIG_H_

 #define F_CPU 11059200				// Clock frequency (used in calculations)

//Serial

#define USART0_BAUDRATE 115200

#define USART1_BAUDRATE 115200 

// Circular serial buffer size. Must be at least MAX_CMD_LEN + 5

#define BUFFER_SIZE 32

// Maximum payload size of command

#define MAX_PAYLOAD_LEN 16

#define DATATYPES_GENERIC 3

#define DATATYPES_SENSOR 8

#define DATATYPES_GEIGER 4

#define DATATYPES_CAMERA 3

//Sensors and IO

#define SENSOR_LOOP 200				// Frequency of sensor reads (in ms) (should be 200)

#define HEATER_THRESHOLD 0			// Temperature threshold in Fahrenheit where heater is activated

#define CAMERA_FREQ 30000		// Camera pulse frequency (Should be 30000 for 30 Secs)

#define CAMERA_PULSE 400 			// Camera pulse duration

 //I2C Addresses

 #define EEPROM_ADDR 0xA0		// Read 0xA1 - Write 0xA0

 #define BOARDTEMP_ADDR 0x90	// Read 0x91 - Write 0x90

 #define PRESSURE_ADDR 0xEE		// Read 0xEF - Write 0xEE

 #define HUMID_ADDR 0x27		// Read 0x28 - Write 0x27

 #define LIGHT_ADDR 0x94		// Read 0x95 - Write 0x94

 #define ACCEL_ADDR	0x38		// Read 0x39 - Write 0x38

 #define RTC_ADDR 0xB2			//DEBUG [Used for testing]      // Read 0xA3 - Write 0xA2

 #endif /* CONFIG_H_ */

/*

 * geiger.c

 *

 * Created: 11/19/2012 9:24:05 PM

 *  Author: kripperger

 */ 

#include <inttypes.h>

#include <avr/io.h>

#include <avr/interrupt.h>

#include "../config.h"

#include <util/delay.h>

#include "geiger.h"

#include "loopTimer.h"

volatile uint8_t seconds;		// Counts Seconds from Timer2 interrupt

volatile uint16_t counts;		// Counts the pulses

volatile uint16_t CPM;			// Counts per Minuite

volatile uint32_t countStart = 0;

volatile uint8_t CPS[60];		// Counts per Second

volatile uint8_t i;

ISR(TIMER2_OVF_vect)    // Timer 2 overflow interrupt handler

{

	// This executes every second.  Update real-time clocks.

	// Used only in Geiger module

	//	The following is a 60 second moving average of the CPS

	seconds++;

	if (seconds>=60)

	{

		seconds = 0;

	}

	CPS[seconds] = counts;

	counts = 0;

	CPM = 0;

	for (i=0;i<60;i++)

	{

		CPM = CPM + CPS[i];

	}

	//CPM = CPM * 2;	// For a 30 second moving average

}

ISR(PCINT0_vect)    // Interrupt on PA0

{

	if(((PINA & 0b00000001))==1)

	{

		// Interrupts when pulse received from Geiger tube

		counts++;	// Increment counter.

		countStart = time_millis();

		led_on(1);

		io_piezoOff();

		_delay_us(50);

	}

}

uint16_t geiger_getCpm()

{

	return CPM;

}

uint8_t geiger_getCount()	//DEBUG

{

	return counts;

}

uint32_t geiger_getCountStart()

{

	return countStart;

}

void geiger_on()

{

	// Turn the Flyback Transformer on

	PORTA |= (1 << PA1);	//ON

}

void geiger_refresh()

{

	// Turn the Flyback Transformer off

	PORTA &= ~(1 << PA1);	//OFF

	_delay_ms(1);

	// Turn the Flyback Transformer on

	PORTA |= (1 << PA1);	//ON

}

/*

 * io.c

 *

 * Created: 11/7/2012 7:17:52 PM

 *  Author: kripperger

 */ 

#include <avr/io.h>

#include "../config.h"

#include "inputOutput.h"

#include "led.h"

#include "sensors.h"

int8_t	moduleID;	// Slave Module ID from rotary dip switch (or EEPROM)

 void io_configure()

 {

	// Configure ports/pins

	DDRB |= (1 << DDB4);		// Set PB4 to Output for Heater (also allows SCK (on SPI bus) to operate)

	DDRC &= ~(1 << DDC2);		// Set PC2 to input for rotary dip

	DDRC &= ~(1 << DDC3);		// Set PC3 to input for rotary dip

	DDRC &= ~(1 << DDC4);		// Set PC4 to input for rotary dip

	DDRC &= ~(1 << DDC5);		// Set PC5 to input for rotary dip

	DDRA &= ~(1 << DDA7);		// Set PA7 to input for battery voltage divider

	//ADC register configurations for battery level detection on PA7

	ADCSRA |= (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0);	// Set prescaler for ADC, 128 gives ADC freq of 125 KHz

	ADMUX |= (1 << REFS0);									// Set ADC reference voltage to AVCC

	//ADMUX |= (1 << ADLAR);								// Sets 10 bit ADC to 8 bit

	ADMUX |= (1 << MUX2) | (1 << MUX1) | (1 << MUX0);		// Select ADC7 as the conversion channel

	ADCSRA |= (1 << ADATE);									// Enables auto trigger, determined in ADCSRB bits ADTS

	//ADCSRA |= (1 << ADIF);								// 

	//ADCSRA |= (1 << ADIE);								// ADC interrupt enable set

	ADCSRB &= ~((1 << ADTS2) | (1 << ADTS1) | (1 << ADTS0));// Set ADC auto trigger source to free running mode

	ADCSRA |= (1 << ADEN);									// Enable ADC

	ADCSRA |= (1 << ADSC);									// Start ADC measurements.  ADC should now continuously run conversions, which are stored in ADCH 0x79

 }

 void io_readModuleId()

 {

	// Get ID from rotary dip and return it. 

	moduleID = 0;

	// First read ID from rotary encoder

	PORTC |= (1 << PC2);	// Pull pins on rotary dip high

	PORTC |= (1 << PC3);	// Pull pins on rotary dip high

	PORTC |= (1 << PC4);	// Pull pins on rotary dip high

	PORTC |= (1 << PC5);	// Pull pins on rotary dip high

	moduleID = ((PINC & 0b00011100) >> 2);		// Read Dip Encoder

	moduleID = ~moduleID;						//Invert Dip reading

	moduleID = (moduleID & 0b0111);				//Mask bits

	// If rotary encoder was 0, read ID from EEPROM

	while(moduleID==0)           

	{

		moduleID = i2c_read(EEPROM_ADDR, 0x05);

	}

 }

 uint8_t io_getModuleId()

 {

	return moduleID;

 }

 void io_heaterOn()

 {		

	PORTB |= (1 << PB4);	//ON

 }

 void io_heaterOff()

 {

	PORTB &= ~(1 << PB4);	//OFF

 }

 void io_piezoOn()

 {

	 PORTA |= (1 << PA2);	//ON

 }

 void io_piezoOff()

 {

	 PORTA &= ~(1 << PA2);	//OFF

 }

 uint8_t io_heaterStatus()

 {

	 uint8_t state;

	 state = 0;

	 state = ((PORTB & 0b00010000) >> 4);

	 return state;

 }

  void io_regulateTemp()

  {

	  // Gets board temperature and enables heater if below threshold

	  if (sensors_getBoardTemp() <= HEATER_THRESHOLD)

	  {

		  io_heaterOn();

/*

 * masterComm.c

 *

 * Created: 1/22/2013 3:40:53 PM

 *  Author: kripperger

 */ 

#include <inttypes.h>

#include <avr/io.h>

#include <stdio.h>

#include "../config.h"

#include "masterComm.h"

#include "serial.h"

#include "serparser.h"

#include "inputOutput.h"

#include "sensors.h"

#include "geiger.h"

#include "led.h"

#include "loopTimer.h"

uint8_t dataTypes;

volatile uint32_t lastRX;

char buff2[64];

char masterComm_checksum(const char* stringPtr)

{

	char sum = 0;

	while(*stringPtr != 0x00)

	{

		sum += *stringPtr;

		stringPtr++;

	}

	return sum;

}

void masterComm_types()

{

	switch(io_getModuleId())

	{

		case 0:

			// Generic

			dataTypes = DATATYPES_GENERIC;

			break;

		case 1:

			// Sensors

			dataTypes = DATATYPES_SENSOR;

			break;

		case 2:

			// Geiger

			dataTypes = DATATYPES_GEIGER;

			break;

		case 3:

			// Camera

			dataTypes = DATATYPES_CAMERA;

			break;

		default:

			dataTypes = DATATYPES_GENERIC;

			break;

	}

}

{

	serial0_sendChar('[');

	snprintf(buff2,64,"%u%lu",id,data);

	serial0_sendString(buff2);

	serial0_sendChar(']');

	serial0_sendChar(masterComm_checksum(buff2));

}

{

	serial0_sendChar('[');

	snprintf(buff2,64,"%u%ld",id,data);

	serial0_sendString(buff2);

	serial0_sendChar(']');

	serial0_sendChar(masterComm_checksum(buff2));

}

void masterComm_modules()

{

	// Send Board Temperature (Common for all modules)

	masterComm_packetSend_signed(0,sensors_getBoardTemp());

	// Send Heater Status (Common for all modules)

	masterComm_packetSend_unsigned(1,io_heaterStatus());

	// Send Battery Level (Common for all modules)

	masterComm_packetSend_unsigned(2,sensors_getBatt());

	// Send module specific sensor readings

	switch(io_getModuleId())

	{

		case 0:

			// Generic

			break;

		case 1:

			// Sensors

			// Send SPI Temperature (Air)

			masterComm_packetSend_signed(3,sensors_getSpiTemp());

			// Send Ambient Light (Needs to be formatted)

			masterComm_packetSend_unsigned(4,sensors_getLux());

			// Send Humidity

			masterComm_packetSend_unsigned(5,/*Humidity Get Function Here */999);		

			// Send Pressure 

			masterComm_packetSend_unsigned(6,sensors_getPressure());			

			// Send Altitude

			masterComm_packetSend_unsigned(7,sensors_getAltitude());

			break;

		case 2:

			// Geiger

			// Send CPM (radiation)

			masterComm_packetSend_unsigned(8,geiger_getCpm());

			break;

		case 3:

			// Camera

			break;

		default:

			break;

	}

}

void masterComm_send()

{

	masterComm_types();		// Calculates how many data types to send

	// Return request with number of data types to be sent

	serial0_sendChar('[');						// Send opening bracket

	serial0_sendString(buff2);

	serial0_sendChar(']');						// Send closing bracket

	serial0_sendChar(masterComm_checksum(buff2));	// Calculate and send checksum

	masterComm_modules();	// Send sensor data

}

void masterComm_checkParser()

{

	if ((time_millis() - lastRX) > 200)	// Timer for LED

	{

		led_off(2);

	}

	if (serparser_parse() == PARSERESULT_PARSEOK)

	{

		if (getPayloadType() == ('@'-0x30))		// Request for data recieved

		{

			led_on(2);

			lastRX = time_millis();

			// Send all data

			masterComm_send();

		}	

	}

}

/*

 * sensors.c

 *

 * Created: 11/19/2012 9:25:01 PM

 *  Author: kripperger

 */ 

#include <inttypes.h>

#include <math.h>

#include <avr/io.h>

#include <avr/interrupt.h>

#include "../config.h"

#include <util/delay.h>

#include "sensors.h"

#include "spi.h"

#include "i2c.h"

int16_t	spiTemp;	// Thermocouple Temperature (from spi)

int8_t	boardTemp;	// Board Temperature (from i2c)

int32_t ut;			// Temperature from BMP085 (from i2c)

int32_t up;			// Pressure from BMP085 (from i2c)

uint16_t humid;		// Humidity (from i2c)

uint8_t lightH;		// Higher byte from light sensor (from i2c)

uint8_t lightL;		// Lower byte from light sensor

uint8_t exponent;	// Exponent for Lux

uint8_t mantissa;	// Mantissa for Lux

uint32_t lux;		// Calculated Lux value

uint8_t battL;		// Low byte of ADC

uint16_t batt;		// Read battery voltage from ADC

uint16_t vBatt;		// battery voltage

int16_t ac1;		// The following 11 variables are the calibration values for the BMP085

int16_t ac2;

int16_t ac3;

uint16_t ac4;

uint16_t ac5;

uint16_t ac6;

int16_t b1;

int16_t b2;

int16_t mb;

int16_t mc;

int16_t md;

int32_t x1;			// The following variables are needed to calculate the true pressure

int32_t x2;

int32_t x3;

int32_t b3;

uint32_t b4;

int32_t b5;

int32_t b6;

uint32_t b7;

int32_t trueTemp;

int32_t pressure;

uint32_t altitude;

void sensors_setupPressure()

{

	//This function reads in the calibration values from the BMP085.  This is done only once.

	ac1 = i2c_read(PRESSURE_ADDR, 0xAA);

	ac1 = ac1 << 8;

	ac1 = ac1 | i2c_read(PRESSURE_ADDR, 0xAB);

	ac2 = i2c_read(PRESSURE_ADDR, 0xAC);

	ac2 = ac2 << 8;

	ac2 = ac2 | i2c_read(PRESSURE_ADDR, 0xAD);

	ac3 = i2c_read(PRESSURE_ADDR, 0xAE);

	ac3 = ac3 << 8;

	ac3 = ac3 | i2c_read(PRESSURE_ADDR, 0xAF);

	ac4 = i2c_read(PRESSURE_ADDR, 0xB0);

	ac4 = ac4 << 8;

	ac4 = ac4 | i2c_read(PRESSURE_ADDR, 0xB1);

	ac5 = i2c_read(PRESSURE_ADDR, 0xB2);

	ac5 = ac5 << 8;

	ac5 = ac5 | i2c_read(PRESSURE_ADDR, 0xB3);

	ac6 = i2c_read(PRESSURE_ADDR, 0xB4);

	ac6 = ac6 << 8;

	ac6 = ac6 | i2c_read(PRESSURE_ADDR, 0xB5);

	b1 = i2c_read(PRESSURE_ADDR, 0xB6);

	b1 = b1 << 8;

	b1 = b1 | i2c_read(PRESSURE_ADDR, 0xB7);

	b2 = i2c_read(PRESSURE_ADDR, 0xB8);

	b2 = b2 << 8;

	b2 = b2 | i2c_read(PRESSURE_ADDR, 0xB9);

	mb = i2c_read(PRESSURE_ADDR, 0xBA);

	mb = mb << 8;

	mb = mb | i2c_read(PRESSURE_ADDR, 0xBB);

	mc = i2c_read(PRESSURE_ADDR, 0xBC);

	mc = mc << 8;

	mc = mc | i2c_read(PRESSURE_ADDR, 0xBD);

	md = i2c_read(PRESSURE_ADDR, 0xBE);

	md = md << 8;

	md = md | i2c_read(PRESSURE_ADDR, 0xBF);

}

void sensors_readSpiTemp()

{

	// Select TEMP wait 100 microseconds then read four bytes

	SELECT_TEMP;

	_delay_us(100);

	uint8_t one = send_spi(0xFF);

	_delay_us(100);

	uint8_t two = send_spi(0xFF);

	_delay_us(100);

	uint8_t three = send_spi(0xFF);

	_delay_us(100);

	uint8_t four = send_spi(0xFF);

	DESELECT_TEMP;

	int16_t temperature = ((one<<4)|(two>>4));	// Shift and place into larger int. (Cuts off Decimal)

	temperature = (temperature & (0x0800)) ? (temperature & 0xF000) : temperature;	// Sign extend

	//int16_t temperature = ((one<<6)|(two>>2));	// Shift and place into larger int. (Includes Decimal)

	//temperature = (temperature & (0x2000)) ? (temperature & 0xC000) : temperature;	// Sign extend

	temperature = (two & 0x01) ? 0x00DE : temperature;	// Error Condition. If error is detected output is set to 222 degrees (0x00DE)

	// Note: Temperature still needs to be scaled in order to be accurate (eg. boil water). Do this before implementing.

	spiTemp = temperature;

}

void sensors_readBoardTemp()

{

	boardTemp = i2c_read(BOARDTEMP_ADDR, 0x00);		// Read only the first byte of data (we don't need the resolution here)

	boardTemp = ((boardTemp*18)/10) + (32);			// Converting Celsius to Fahrenheit

	boardTemp = boardTemp - 3;						// Linear offset

}

void sensors_readPressure()

{

	i2c_write(PRESSURE_ADDR, 0xF4, 0x2E);				//write 0x2E (temp) into 0xF4 (control register), (write is 0xEE)

	_delay_us(4500);							//wait 4.5 ms

	ut = i2c_read(PRESSURE_ADDR, 0xF6);

	ut = ut << 8;

	ut = ut | i2c_read(PRESSURE_ADDR, 0xF7);	//ut = MSB<<8 + LSB

	i2c_write(PRESSURE_ADDR, 0xF4, 0x34);				//write 0x34 (pressure) into 0xF4 (control register), (write is 0xEE)

	_delay_us(4500);							//wait 4.5 ms

	up = i2c_read(PRESSURE_ADDR, 0xF6);

	up = up << 8;

	up = up | i2c_read(PRESSURE_ADDR, 0xF7);	//up = (MSB<<16 + LSB<<8 + XLSB(NOT USED)) >> (8-oss)

	//calculate true temperature

	x1 = ((ut - ac6) * ac5) >> 15;

	x2 = (mc << 11) / (x1 + md);

	b5 = x1 + x2;

	trueTemp = (b5 + 8) >> 4;

	//calculate b3

	b6 = b5 - 4000;

	x1 = (b2 * (b6 * b6) >> 12) >> 11;

	x2 = (ac2 * b6) >> 11;

	x3 = x1 + x2;

	b3 = ((ac1 * 4 + x3) + 2) / 4;

	//calculate b4

	x1 = (ac3 * b6) >> 16;

	x2 = (b1 * ((b6 * b6) >> 12)) >> 16;

	x3 = ((x1 + x2) + 2) >> 2;

	b4 = (ac4 * (x3 + 32768)) >> 15;

	b7 = (up - b3) * 50000;

	if (b7 < 0x80000000)

	{

		pressure = (b7 << 1) / b4;

	}

	else

	{

		pressure = (b7 / b4) << 1;

	}

	x1 = (pressure >> 8) * (pressure >> 8);

	x1 = (x1 * 3038) >> 16;

	x2 = (-7357 * pressure) >> 16;

	pressure += (x1 + x2 + 3791) >> 4;				//This is the final value for our pressure

	pressure = pressure;	// Linear Offset for actual pressure

	altitude = (float)44330 * (1 - pow(((float) pressure/101325), 0.190295));	// 101325 THIS IS IN METERS

	altitude = (float)altitude * 3.2804;	//THIS IS IN FEET

}

void sensors_readHumid()

{

	//i2c_write(HUMID_ADDR, 0x00, 0x00);		//Measurement Request

	//humid = i2c_read16(HUMID_ADDR);

//humid = i2c_humidRead();

	//calculations to relative humidity: humid = (humid/((2^14) - 1))*100%       >> is divide by power, << is multiply by power, 2^14-1 = 16383

	 //humid = (humid / 16383) * 100;

	 //humid = (humid / 2500) * 100;

}

void sensors_readLux()

{

	lightH = i2c_read(LIGHT_ADDR, 0x03);

	lightL = i2c_read(LIGHT_ADDR, 0x04);

	exponent = lightH;

	exponent = exponent >> 4;

	lightH = lightH << 4;

	mantissa = lightH | lightL;

	lux = (float)(pow(2,exponent) * mantissa) * 0.045;

}

void sensors_readBatt()

{

	battL = ADCL;					// Read low battery byte from ADC (all 8 bits)

	batt = ADCH;					// Read high battery byte from ADC (only two LSBs)

	batt = batt << 8;

	batt |= battL;

	vBatt = (batt * 10.0) / 67.4;

}