Changeset - 29db24a20666
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kripperger@CL-SEC241-09.cedarville.edu - 12 years ago 2013-04-10 18:07:19
kripperger@CL-SEC241-09.cedarville.edu
Geiger CPM averaging
6 files changed with 59 insertions and 16 deletions:
0 comments (0 inline, 0 general)
slave/slave/lib/geiger.c
Show inline comments
 
@@ -12,23 +12,36 @@
 
#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 uint16_t CPM;			// Counts per Minuite
 
volatile uint32_t countStart = 0;
 
volatile uint8_t CPS[30];		// 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 30 second moving average of the CPS
 
	seconds++;
 
	if (seconds>=30)
 
	{
 
		cpm = (counts*2);
 
		CPM = 0;
 
		for (i=0;i<30;i++)
 
		{
 
			CPM = CPM + CPS[i];
 
		}
 
		CPM = CPM * 2;
 
		seconds = 0;
 
		counts = 0;
 
	}
 
	
 
	CPS[seconds] = counts;
 
	counts = 0;
 
	
 
}
 
 
ISR(PCINT0_vect)    // Interrupt on PA0
 
@@ -37,15 +50,19 @@ ISR(PCINT0_vect)    // Interrupt on PA0
 
	{
 
		// Interrupts when pulse received from Geiger tube
 
		counts++;	// Increment counter.
 
		led_toggle(2);
 
		_delay_ms(5);
 
		countStart = time_millis();
 
		
 
		led_on(1);
 
		io_piezoOn();
 
		
 
		_delay_us(50);
 
	}
 
 
}
 
 
uint16_t geiger_getCpm()
 
{
 
	return cpm;
 
	return CPM;
 
}
 
 
uint8_t geiger_getCount()	//DEBUG
 
@@ -53,6 +70,11 @@ uint8_t geiger_getCount()	//DEBUG
 
	return counts;
 
}
 
 
uint32_t geiger_getCountStart()
 
{
 
	return countStart;
 
}
 
 
void geiger_on()
 
{
 
	// Turn the Flyback Transformer on
slave/slave/lib/geiger.h
Show inline comments
 
@@ -10,7 +10,8 @@
 
#define GEIGER_H_
 
 
uint16_t geiger_getCpm();
 
uint8_t geiger_getCount();	//DEBUG
 
uint8_t geiger_getCount();
 
uint32_t geiger_getCountStart();
 
void geiger_on();
 
void geiger_refresh();
 
slave/slave/lib/inputOutput.c
Show inline comments
 
@@ -80,6 +80,16 @@ int8_t	moduleID;	// Slave Module ID from
 
	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;
slave/slave/lib/inputOutput.h
Show inline comments
 
@@ -16,6 +16,8 @@ uint8_t io_getModuleId();	// Gets ID and
 
 
void io_heaterOn();
 
void io_heaterOff();
 
void io_piezoOn();
 
void io_piezoOff();
 
uint8_t io_heaterStatus();
 
 
void io_regulateTemp();		// Gets board temperature and enables heater if below threshold
slave/slave/modules.c
Show inline comments
 
@@ -90,8 +90,9 @@
 
 void modules_geiger_setup()
 
 {
 
	// Pin setup
 
	DDRA &= ~(1 << DDA0);	// PA0 is an input
 
	DDRA |= (1 << DDA1);	// PA1 is an output
 
	DDRA &= ~(1 << DDA0);	// PA0 is an input for count interrupt
 
	DDRA |= (1 << DDA1);	// PA1 is an output for HV control
 
	DDRA |= (1 << DDA2);	// PA2 is an output for piezo
 
	
 
	geiger_on();	// Turn on HV supply
 
	
 
@@ -144,11 +145,18 @@
 
	// No data gatering function needed for geiger daughter board
 
		// This is taken care of in interrupt (See geiger.c)
 
		
 
		//lastRefresh = time_millis();
 
		//if ((time_millis() - lastRefresh) > 1000000)
 
		//{
 
		//	geiger_refresh();	//Refreshes every 1000sec (16min)
 
		//}			
 
	//lastRefresh = time_millis();
 
	//if ((time_millis() - lastRefresh) > 1000000)
 
	//{
 
	//	geiger_refresh();	//Refreshes every 1000sec (16min)
 
	//}
 
		
 
	if ((time_millis() - geiger_getCountStart()) > 50)
 
	{
 
		led_off(1);
 
		io_piezoOff();
 
	}		
 
					
 
	  
 
 }
 
  
slave/slave/slave.c
Show inline comments
 
@@ -94,7 +94,7 @@ int main(void)
 
			
 
			io_regulateTemp();			// Gets board temperature and enables heater if below threshold
 

	
 
			snprintf(buff,128,"|ModuleID: %u |BoardTemp: %i |Millis: %lu |Lux: %lu |Press: %lu |Altitude: %lu |Batt: %u |spiTemp: %i |Humidity: %u \r\n ",io_getModuleId(),sensors_getBoardTemp(),time_millis(),sensors_getLux(),sensors_getPressure(),sensors_getAltitude(),sensors_getBatt(),sensors_getSpiTemp(),sensors_getHumid()); //DEBUG
 
			snprintf(buff,128,"|ModuleID: %u |BoardTemp: %i |Millis: %lu |Lux: %lu |Press: %lu |Altitude: %lu |Batt: %u |spiTemp: %i |CPM: %u \r\n ",io_getModuleId(),sensors_getBoardTemp(),time_millis(),sensors_getLux(),sensors_getPressure(),sensors_getAltitude(),sensors_getBatt(),sensors_getSpiTemp(),geiger_getCount()); //DEBUG
 
			serial1_sendString(buff); //DEBUG
 
			
 
			led_off(0);
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