Microwave.c

#include "Tiva.h"
#include "Switch.h"
#include "Buzzer.h"
#include "keypad.h"
#include "LCD.h"
#include "Timer.h"
#include "LED.h"
#include "Switch.h"
#include "defines.h"
#include <inttypes.h>
#include "Interrupt.h"
#include <stdbool.h>  


char time[]={'0','0',':','0','0','\0'};

void microwave_Init(void){ 
	System_Init();
	buzzer_Init();
	keypad_Init();
	LCD_Init();
	LED_Init();
	SW1_Init();
	SW2_Init();
	SW3_Init();
	interrupt_Init();
}

 /*pause time on LCD*/
void pause(void){
	START =0; 																		// reset start flag
	SW1_Press_Counts = 1;
	LCD_Clear_Display();													//clear LCD 
	LCD_Show(time); 															//display on LCD 
	
	while(1)
		{
			WhiteOn(); 																// turns leds on 
			Systick_Wait_ms(500);									  	// wait 0.5 second
			LED_Clear(); 															// clear LCD 
			Systick_Wait_ms(500);											// wait 0.5 second
			if((SW3_Input() != 0x04) && (START ==1) )	//check if sw2 and sw3 pressed together
			{
				LCD_Clear_Display(); 										//clear LCD
				LCD_Show("Close The Door");							//display on LCD 
				START =0; 															// reset start flag
			}
			
			if(((SW3_Input() == 0x04) && START ==1) || (RESET == 1 ))//check if sw2 pressed and sw3 not pressed or reset flag is set
			{	
				SW1_Press_Counts = 0;										// reset count flag
				LCD_Clear_Display();										// clear LCD
				break;
			}
		}
	PAUSE =0;																			// reset pause flag
}

/*reset timer array */
void reset(void){
	time[0] = '0';
	time[1] = '0';
	time[3] = '0';
	time[4] = '0';
	LED_Clear();																	// clear LCD
	RESET=0; 																			// Reset the flag
}

/*check if the input is vaild or not */
bool Check_Invalid(void){ 
	if(	time[0]>'3' ) 														//  check if tens of mins is more than 3 
		{
			 return true;
		}
	if(	time[0]=='3' && ( time[1]!='0' || time[3] !='0' || time[4] !='0') 	)// check if time is more than 30 min
		{
			 return true;
		}
	if(	time[3]>'5'	 )														// check if tens of seconds is more than five
		{
			 return true;
		}
	if(time[0]=='0' &&  time[1] =='0')					  //check if time is less than 1 min 
		{
			 return true;		
		}
	else
		{
			 return false;
		}
}

void End_Operation(){ 
	int i;
	START=0; 																			// reset the value of flags 
	Start_Cook_Time = 0;
	SW1_Press_Counts=0;
	LCD_Clear_Display(); 													// clear LCD 
	LCD_Show("End");    													// display end on LCD 
	
	for(i=0; i<3; i++){ 
			beep(); 																	// turn buzzer on 
			WhiteOn(); 																// turn leds on 
			Systick_Wait_ms(500); 										// wait 0.5 second 
			LED_Clear(); 															// clear LCD 
			stop_Beep(); 															//turn buzzer off
			Systick_Wait_ms(500);											//wait 0.5 second 
			
		}		
	LCD_Clear_Display();													//clear LCD
}

/* disply the countdown timer on LCD*/
void Time_Display(char time[]){ 
	
	LCD_Clear_Display(); 
	while(time[0]!='0' || time[1]!='0' || time[3]!='0' ||  time[4]!='0') 		//check the timer is not equal zero
		{ 
			WhiteOn();  // turn leds on
			LCD_Clear_Display();  //clear LCD
			LCD_Show(time);  //  display time on LCD
			
			if((PAUSE == 1) || (SW3_Input() !=0x04)){														//check if SW1 pressed or the door opened  
				pause(); // pause time on LCD
			}
			if(RESET == 1){																									  	// check if sw1 pressed twice
				reset();  															 // reset the timer array 
				break;
			}
			
			Systick_Wait_ms(1000); 										//wait 1 second 
		
			if(time[4]!='0' ) 												// check if units of seconds not equal zero
			{
				time[4]--;															//decrease the units of seconds
			}
			else if(time[4]=='0' && time[3]!='0')     //check if tens of seconds not equal zero and units of seconds equal zero
			{
				time[4]='9'; //units of seconds equal nine
				time[3]--; //decrease the tens of seconds
			}

			else if(time[4]=='0' && time[3]=='0' && time[1]!='0')								 //check if seconds equal zero and units of mins not equal zero 
			{
				time[4]='9';                            //units of seconds equal nine
				time[3]='5';                            //tens of seconds equal five
				time[1]--;//decrease the units of mins
			}
			else if(time[4]=='0' && time[3]=='0' && time[1]=='0' && time[0]!='0')//check if seconds equal zero and tens of mins not equal zero 
			{
				time[4]='9';							              //units of seconds equal nine
				time[3]='5';                            //tens of seconds equal five
				time[1]='9';                            //units of mins equal nine
				time[0]--;                              //decrease the tens of mins
			}

			LCD_Clear_Display();                      //clear LCD 
		}
	End_Operation();
}

/*start countdown of timer*/
void start(void){ 
	RESET=0; 
	PAUSE =0;
	Time_Display(time);
}

/* take time from user*/
void Cook_Time(void){ 
	char x; 
	int i ;
	bool invalid= false; 
	Cook_Time_f = 1; 													    // set flag (get in function cook time) 
	time[4]='0'; 																  // reset the time array
	time[3]='0'; 
	time[1]='0';
	time[0]='0';
	LCD_Show("Cooking Time?");
	Systick_Wait_ms(1000);                       //wait 1 second 
  for(i=4;i>0;i--) 
	{	
    x= KeyScan();                              // take input from user 
		LCD_Clear_Display();
		if(Cook_Time_Again || Start_Cook_Time){                                           // check if SW2 or SW1 pressed
			LCD_Clear_Display(); //clear LCD
			break; 
		}
		if( x<'0' ||  x>'9' )																															//check if the input is among 0 to 9 
		{
			invalid= true; 			                     // set the  invaild flag 
			break;
		}
			
    time[0]=time[1];                           // make shift left to timer array 
    time[1]=time[3];
    time[3]=time[4];
    time[4]=x;
		LCD_Show(time);                            // display time on LCD
		Systick_Wait_ms(500);                      //wait 0.5 seconds
			
  }
	
	while(1)
	{
		if(Cook_Time_Again == 1 || Start_Cook_Time == 1 || invalid == 1 ){								 //check if SW2 or SW1 pressed
			LCD_Clear_Display();										 //clear LCD
			break;
		}
	}
	
	Cook_Time_f = 0; 													   // reset flag (get out from function cook time) 
	
	if((Check_Invalid() || invalid	)&& (!Cook_Time_Again))															 // check if input is not valid or time is reset
	{
		LCD_Clear_Display(); 											 // clear LCD 
		LCD_Show("Invalid value");                 //display on LCD
		Systick_Wait_ms(2000);                     //wait 2 seconds 
		LCD_Clear_Display();                       //clear LCD
		Start_Cook_Time = 0;											 //reset the flag
		Cook_Time(); 															 //back again to function until input is valid 
	}

}

/* to convert char to integer */
int Char_to_int(char x){
	int number = x-'0'; 											   //to get the number that is between 0 and 9 
	return number;
}
/* to convert integer to char and get tens*/
char IntToChar_Tens(int x){
	int Tens= x/10;  														 // to get tens
	char required;  
	required = Tens +'0';                        //convert to char
	return required;
}

/* to convert integer to char and get units*/
char IntToChar_Units(int x){
	int Units= x%10; 														 //to get ones 
	char required;
	required = Units +'0';											 //convert to char
	return required;
}
	
void cook_Popcorn(void){
	time[1]='1';                                 // to make time equal 1 min
	LCD_Show("Popcorn");                         // show popcorn in lcd
	Systick_Wait_ms(1000);                       // wait 1 second
	LCD_Clear_Display();                         // clear display 
	LCD_Show(time);                              // show time on LCD 
}
 
/*take num of kilos and count time to display*/
void cook_Beef_or_Chicken(char choice){
	int minutes;
	int seconds;
	double TimeInMinutes_d;
	char No_kilos;
	int no_kilos ;
	
	if(choice ==beef)                            // check if the choose is B  
		{
			LCD_Show("Beef weight?"); 							 // display on LCD
			Systick_Wait_ms(500);                    //wait 0.5 second 
			LCD_Clear_Display();                     // clear LCD
		}
	else if(choice ==chicken)										 // check if the choose is C
		{
			LCD_Show("Chicken weight?");             // display on LCD
			Systick_Wait_ms(500);                    //wait 0.5 second 
			LCD_Clear_Display();                     // clear LCD
		}
	do
	{
		LCD_Show("Kilos? 1 to 9");                  // display on LCD
		Systick_Wait_ms(300);                       // wait 0.3 second
		No_kilos =KeyScan();                        // take input from kaypad 
		LCD_Clear_Display();                        // clear LCD
		
		if(No_kilos<'1' || No_kilos>'9' )                                                 //check if num of kilos not is between 1 and 9
		{ 
			LCD_Show("Err");													// display on LCD
			Systick_Wait_ms(2000);										// wait 2 seconds 
			LCD_Clear_Display();											// clear LCD
		}
	}
	while(No_kilos<'1' || No_kilos>'9'); 																								// wait until num of kilos is between 1 and 9

	LCD_Show("Weight is "); 											//display on LCD 
	LCD_Write(No_kilos); 													//writes char on LCD
	Systick_Wait_ms(500);													//wait 0.5 second
		
	if (choice ==beef)																														    	// check if the choose is B  
	{
		no_kilos=Char_to_int(No_kilos);						  // convert char to int 
		TimeInMinutes_d=0.5*no_kilos ; 							// count time 
	}
	else if(choice == chicken)                    // check if the choose is C
	{
		no_kilos=Char_to_int(No_kilos);             // convert char to int
		TimeInMinutes_d=0.2*no_kilos;               // count time
	}
	minutes= (int)TimeInMinutes_d;                // count the num of mins
	seconds= (TimeInMinutes_d-minutes) * 60;      // count the num of seconds
	time[0]=IntToChar_Tens(minutes);              // convert int to char to display it on LCD
	time[1]=IntToChar_Units(minutes);
	time[3]=IntToChar_Tens(seconds);
	time[4]=IntToChar_Units(seconds);
	LCD_Clear_Display();                          //clear LCD
	LCD_Show(time);                               //display on LCD 
}