Test Fixture Code

gistfile1.txt

/*
 * Test_1.c
 *
 *  Created on: Oct 5, 2017
 *      Author: heldjj
 *      Inputs: 1x pushbutton w/pullup resistor
 *      Outputs:3 indicator leds. (1x pushbutton indicator, 1x PWM brightness display, 1x pulse display)
 *      Purpose: To be able to control the ouput pulse length and fire only once per button press.
 *
 */

#include <avr/io.h>
#include <inttypes.h>
#include <MSOE/delay.c>
#include <MSOE/bit.c>
#include <MSOE/lcd.c>
#include <avr/interrupt.h>

//Function prototypes
void Actuator_Fire(int Actuator_Number);
float Actuator_PWM(int Actuator_Power);

//Global Variables
int Actuator_Number=0;
float Actuator_Power;
int Time=0;	// flag for ISR use
int TimeOn;
int TimeOff;
int Button;
int Fire;

int main(void)
{
	//Timer1
	TCCR1A |= (1<<COM1A1)|(1<<COM1B1)|(1<<WGM11)|(1<<WGM10); // fast pwm, mode 7, 0x03ff(1024) top, 10 bit
	TCCR1B |= (1<<WGM12)|(1<<CS11);		// Pre-scaler 5 top
	//setting up timer0
	TCCR0A|=0x02;	// WGM01 = HIGH, CTC mode prescaler 8 top required of 52, normal pin operation for ocr1a&b (disconnected)
	TCCR0B|=0x02;	// CS01 = HIGH
	DDRC|=0x01; // OUTPUT PINC0	initally set to output
	PORTC&=(~0x01); // Set Output low initially
	OCR0A=26;	// PRODUCES A 37.73K HZ SQUARE WAVE
	TIMSK0|=0x02; // ociea intrrupt mask enabled

	//PWM Duty Cycle Settings
	OCR1B=1000;	// Duty cycle /1024 Pin B2

	//Pin output settings
	DDRB |=0x04; //0000 0110	Pin B2 output			Left on for reference brightness
	DDRB &=~(0x02); //0000 0110	Pin B1 input
	DDRC &=(~0x01); 	// Set Pin C0 as input
	PORTC &=~(0x01);	// Turn off pull up resistor
	DDRC |=0x20; 		//0010 0000 Set pin C5 as output
	PORTC &=~(0x20);	//1101 1111 Set Pin C5 to low

	sei();       // global interrupt enable
	while(1)
	{
		float Power;
		Button=(PINC&0x01);

//************* Enter a power value from 1-100 representing power % **********************
		Actuator_Power =100;//<-----------------

		Actuator_Number=0;
		if (Button==1)
		{
			PORTC |=0x20;	//1101 1111 Set Pin C5 to low
		}
		else
		{
			PORTC &=~(0x20);	//1101 1111 Set Pin C5 to low
		}

		TimeOn=5000;
//*************** Enter PWM signal on time here- Change the 5000 value to change when the signal is turned off***************************
		TimeOff=(TimeOn+5000);//<---------------
/* Each full cycle = 52.6313E-6 seconds		38.8kHz signal
 *Sec	# of cycles
0.010	380
0.020	760
0.030	1140
0.040	1520
0.050	1900
0.060	2280
0.070	2660
0.080	3040
0.090	3420
0.100	3800
0.150	5700
0.200	7600
0.250	9500
0.300	11400
0.350	13300
0.400	15200
0.450	17100
0.500	19000
 */
		Power=Actuator_PWM(Actuator_Power);
		OCR1A=Power;
		Actuator_Fire(Actuator_Number);
	}//end while
}//end main

void Actuator_Fire(int Actuator_Number)
{
	switch (Actuator_Number)//Control which actuator is firing
	{
		case '0':

		break;
		case '1':

		break;
		case '2':

		break;
		case '3':

		break;
		case '4':

		break;
		case '5':

		break;
		default:
			TimeOn=10;
	}// end switch
}// end Actuator_Fire

float Actuator_PWM(int Actuator_Power)
{
	float Power;
	Power=((Actuator_Power/100)*1000);
	return Power;
}// End Actuator_PWM

// INT0 ISR
ISR (TIMER0_COMPA_vect)	// enter interrupt when Timer0 compare match B is true
{
	Time++;
	// Each full cycle = 52.6313E-6 seconds
	if ((Button==1)&&(Fire==0))
	{
		if(Time==TimeOn)	// Value divided by 2 = # of cycles
		{
			DDRB|= 0x02;	//0000 0010 Set pin B1 to output
		}
		else if (Time==TimeOff)
		{
			DDRB&=~(0x02);	// 0000 0010 Set pin B1 to input
			Time=0;
			Fire=1;
		}
	}
	else if (Button==0)
	{
		DDRB&=~(0x02);	// 0000 0010 Set pin B1 to input This ensures that the output is off when the button is released
		Fire=0;
		Time=0;
	}
}

/*

#include <avr/io.h>
#include <inttypes.h>
#include <MSOE/delay.c>
#include <MSOE/bit.c>
#include <MSOE/lcd.c>
#include <avr/interrupt.h>

//Function prototypes
void Actuator_Fire(int Actuator_Number);
float Actuator_PWM(int Actuator_Power);

//Global Variables
int Actuator_Number=0;
float Actuator_Power;
int Time=0;	// flag for ISR use
int TimeOn;
int TimeOff;
int Button;
int Fire;

int main(void)
{
	//Timer1
	TCCR1A |= (1<<COM1A1)|(1<<COM1B1)|(1<<WGM11)|(1<<WGM10); // fast pwm, mode 7, 0x03ff(1024) top, 10 bit
	TCCR1B |= (1<<WGM12)|(1<<CS11);		// Pre-scaler 5 top
	//Timer0
//	TCCR0A |= (1<<COM0A1)|(1<<COM0B1)|(1<<WGM01)|(1<<WGM00); // fast pwm, mode 3, 0x0ff(255) top, 10 bit
//	TCCR0B |= (1<<WGM02)|(1<<CS11)|(1<<CS10);		// Pre-scaler 1024 top

	//setting up timer0
	TCCR0A|=0x02;	// WGM01 = HIGH, CTC mode prescaler 8 top required of 52, normal pin operation for ocr1a&b (disconnected)
	TCCR0B|=0x02;	// CS01 = HIGH
	DDRC|=0x01; // OUTPUT PINC0	initally set to output
	PORTC&=(~0x01); // Set Output low initially
	OCR0A=26;	// PRODUCES A 37.73K HZ SQUARE WAVE
	TIMSK0|=0x02; // ociea intrrupt mask enabled

	//PWM Duty Cycle Settings
	//OCR1A=50;	//Duty cycle /1024 Pin B1
	OCR1B=1000;	// Duty cycle /1024 Pin B2
//	OCR0A=0;	// Duty cycle /255 Pin D6
//	OCR0B=0;	// Duty cycle /255 Pin D5

	//Pin output settings
	DDRB |=0x04; //0000 0110	Pin B2 output			Left on for reference brightness
//	DDRB |=0x02; //0000 0110	Pin B1 output
//	DDRD |=0x60; //0110 0000	Pin D9&10 output

	// Going to want to turn pins off initially then on for the period of fire time.
//	DDRB &=~(0x04); //0000 0110	Pin B2 input
	DDRB &=~(0x02); //0000 0110	Pin B1 input
//	DDRD &=~(0x60);	//0110 0000	Pin D5 & D6 input

	DDRC &=(~0x01); 	// Set Pin C0 as input
	PORTC &=~(0x01);	// Turn off pull up resistor
	DDRC |=0x20; 		//0010 0000 Set pin C5 as output
	PORTC &=~(0x20);	//1101 1111 Set Pin C5 to low

	sei();       // global interrupt enable
	while(1)
	{
		float Power;
		Button=(PINC&0x01);
//************* Enter a power value from 1-100 representing power % **********************
		Actuator_Power =100;
		Actuator_Number=0;

		if (Button==1)
		{
			PORTC |=0x20;	//1101 1111 Set Pin C5 to low
		}
		else
		{
			PORTC &=~(0x20);	//1101 1111 Set Pin C5 to low
		}


		//TimeOn=12000;
	//	TimeOff=13000;

		TimeOn=5000;
		TimeOff=(TimeOn+5000);


		Power=Actuator_PWM(Actuator_Power);
		OCR1A=Power;
		Actuator_Fire(Actuator_Number);
	}//end while
}//end main

void Actuator_Fire(int Actuator_Number)
{
	switch (Actuator_Number)//Control which actuator is firing
	{
		case '0':

		break;
		case '1':

		break;
		case '2':

		break;
		case '3':

		break;
		case '4':

		break;
		case '5':

		break;
		default:
			TimeOn=10;
	}// end switch
//	return TimeOn;
}// end Actuator_Fire

float Actuator_PWM(int Actuator_Power)
{
	float Power;
	Power=((Actuator_Power/100)*1000);
	return Power;
}// End Actuator_PWM

// INT0 ISR
ISR (TIMER0_COMPA_vect)	// enter interrupt when Timer0 compare match B is true
{
	Time++;
	// Each full cycle = 52.6313E-6 seconds
	//int Fire=0;
	if ((Button==1)&&(Fire==0))
	{
		if(Time==TimeOn)	// Value divided by 2 = # of cycles
		{
			DDRB|= 0x02;	//0000 0010 Set pin B1 to output
		}
		else if (Time==TimeOff)
		{
			DDRB&=~(0x02);	// 0000 0010 Set pin B1 to input
			Time=0;
			Fire=1;
		}
	}
	else if (Button==0)
	{
		DDRB&=~(0x02);	// 0000 0010 Set pin B1 to input This ensures that the output is off when the button is released
		Fire=0;
		Time=0;
	}
}
 *
 */