Changeset - 80205b44ff8a
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mkroening@CL-ENS241-07.cedarville.edu - 12 years ago 2013-04-04 23:46:57
mkroening@CL-ENS241-07.cedarville.edu
Cameras
3 files changed with 9 insertions and 5 deletions:
slave/slave/config.h
1
1
slave/slave/lib/i2c.c
5
1
slave/slave/lib/sensors.c
3
3
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slave/slave/config.h
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/*
 
 * 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
 
 
// Number of datatypes to transmit per module type
 
#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 500 			// Camera pulse duration
 
#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_ */
 
\ No newline at end of file
slave/slave/lib/i2c.c
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@@ -304,54 +304,58 @@ uint8_t i2c_read(unsigned char addr, uns
 
 
	i2c_rep_start(addr+I2C_READ);   // set device address and read mode
 
	data = i2c_readNak();               // read one byte
 
	i2c_stop();
 
 
    return data;
 
 
}/* i2c_read */
 
 
 
///////////added for humidity
 
uint16_t i2c_read16(unsigned char addr)
 
{
 
	uint16_t   data;
 
	uint8_t   dataL;
 
 
	i2c_start_wait(addr+I2C_WRITE);		// set device address and write mode
 
 
	i2c_rep_start(addr+I2C_READ);   // set device address and read mode
 
	data = i2c_readAck();               // read one byte
 
	dataL = i2c_readNak();
 
	i2c_stop();
 
 
	data = data << 8;
 
	data = data | dataL;
 
 
	return data;
 
 
}/* i2c_read16 */
 
 
uint16_t i2c_humidRead()
 
{
 
	uint16_t   data;
 
	uint8_t   dataL;
 
 
	//i2c_start_wait(HUMID_ADDR+I2C_WRITE);	// set device address and write mode
 
	//i2c_rep_start(HUMID_ADDR+I2C_READ);   // set device address and read mode
 
 
	i2c_start(HUMID_ADDR+I2C_WRITE);	// Measurement Request
 
	i2c_stop();					// Stop
 
 
 
	i2c_start(HUMID_ADDR+I2C_READ);		// Measurement Request
 
 
	data = i2c_readAck();               // read one byte
 
	dataL = i2c_readNak();
 
	i2c_stop();
 
 
	data = data << 8;
 
	//data = data << 8;
 
	//data = data | dataL;
 
 
	data = data << 10;	//Need this to drop S1 and S0?
 
	data = data >> 2;
 
	data = data | dataL;
 
 
	return data;
 
 
}
 
\ No newline at end of file
slave/slave/lib/sensors.c
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@@ -141,112 +141,112 @@ 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 - 21000;	// Linear Offset for actual pressure
 
	pressure = pressure - 20750;	// Linear Offset for actual pressure
 
 
	altitude = (float)44330 * (1 - pow(((float) pressure/101325), 0.190295));	// 101325 THIS IS IN METERS
 
	altitude = (float)44330 * (1 - pow(((float) pressure/105225), 0.190295));	// 101325 THIS IS IN METERS
 
	altitude = 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 / 10100) * 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;
 
}
 
 
 
 
 
 
 
 
 
int16_t sensors_getSpiTemp(void)	// Gets spi temperature from variable
 
{
 
	return spiTemp;
 
}
 
 
int8_t sensors_getBoardTemp(void)	// Gets board temperature from variable
 
{
 
	return boardTemp;
 
}
 
 
int32_t sensors_getPressure(void)	// Gets pressure from variable
 
{
 
	return pressure;
 
}
 
 
uint16_t sensors_getHumid(void)			// Gets relative humidity from variable
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