Adding files

ADC/main.c

@@ -7,13 +7,16 @@ int main(void)
 {
 	 DDRL = 0xff;//port L direction: output //pins- 49:42
      DDRC = 0xff;//port C direction: output //pins- 37:30
-     DDRA = 0x00;//port A direction: input //pins- 22:29 
+     //DDRA = 0x00;//port A direction: input //pins- 22:29 
      ADCSRA = 0x87;// ADC enabled and prescaler=128
-     ADMUX = 0xC0;// input at ADC0// data is right-justified
+     ADMUX = 0x61;// Ref= Vcc// data is left-justified //ADC0 is source pin
      while(1)
      {
-     	ADCSRA |= (1<<ADSC); //to start conversion
-     	while(ADCSRA && (1<<ADIF)==0);// waiting for conversion to finish
+        //ADIF=0 ifu wanna reset, otherwise you keep it as 1 so that conversion doesnt start again
+     	//ADCSRA |= (1<<ADSC); //to start conversion, we set ADSC bit to 1
+        ADCSRA |= 0x40; //ADSC=1
+     	//while(ADCSRA && (1<<ADIF)==0);// waiting for conversion to finish
+        while(ADIF==0);
      	PORTL = ADCL;
      	PORTC = ADCH;
      }

ADC/main.hex

@@ -13,9 +13,9 @@
 :1000C0000C947E000C947E000C947E000C947E00B8
 :1000D0000C947E000C947E000C947E000C947E00A8
 :1000E0000C947E0011241FBECFEFD1E2DEBFCDBF46
-:1000F00000E00CBF0E9480000C949A000C94000059
-:100100008FEF80930A0187B911B887E880937A004E
-:1001100080EC80937C0080917A00806480937A00E8
-:1001200080917A008091780080930B018091790012
-:0801300088B9F1CFF894FFCF6C
+:1000F00000E00CBF0E9480000C9497000C9400005C
+:100100008FEF80930A0187B987E880937A0081E6B0
+:1001100080937C0080917A00806480937A00809143
+:10012000780080930B018091790088B9F3CFF8941F
+:02013000FFCFFF
 :00000001FF

ADC/readme.txt

@@ -12,8 +12,8 @@ Bit 4= ADIF: ADC Interrupt Flag- This bit is set when an ADC conversion complete
 Bit [2:0] = 111 = Prescaler-128
 
 ADMUX: ADC Multiplexer = 0xC0
-Bit [7:6] = 11 = Vref= 2.56V
-Bit 5 = 0 = Result(10-bits-wide) is right-justified
+Bit [7:6] = 01 = Vref= AVcc = 5V
+Bit 5 = 1 = Result(10-bits-wide) is left-justified
 Bit [4:0] = 00000 = Input at ADC0
 
 ADCL: ADC Data Register Lower= stores the lower 8 bits of result of conversion

GPIO_Input/main.c

@@ -10,7 +10,7 @@ int main(void)
     //pin 37-port C0 ; C7- pin 30
      DDRC = 0xff;//port C direction: output
      DDRA = 0xff;//port A direction: output
-     DDRB = 0x00;//pin 10-13: Port B4 to B7 //direction: input
+     DDRB = 0x00;//pin 10-13: Port B4 to B7 //direction: input; pin 53-50: Port B0 to B3
      //PINB = 0x00;//clearing PINB register
      //PORTA = PINB;
      //while(1);

GPIO_Input_2/main.c

@@ -1,57 +0,0 @@
-//GPIO- Input Configuration
-
-
-#include <avr/io.h>
-#define F_CPU 16000000//16MHz
-#include <util/delay.h>
-
-int main(void)
-{
-    //pin 37-port C0 ; C7- pin 30
-     DDRC = 0xff;//port C direction: output
-     DDRA = 0xff;//port A direction: output
-     DDRB = 0x00;//pin 10-13: Port B4 to B7 //direction: input
-     //PINB = 0x00;//clearing PINB register
-     //PORTA = PINB;
-     //while(1);
-
-    //enabling pull-up resistors//use=?//default output when pull-up enabled=high
-    PORTB = 0xff;
-    //PORTC = 0xff;
-    //PORTB=0x00;//disabling pull-up resistors?//does it help or not?
-    while(1)
-    {
-        PORTA = PINB;//PortA= pin 22-29
-        if(PINB==0xFF)
-        {
-            PORTC = 0x01;
-            _delay_ms(5);
-            PORTC = 0x00;
-            _delay_ms(5);
-        }//f=100Hz
-        else if(PINB==0x00)
-        {
-            PORTC = 0x01;
-            _delay_ms(10);
-            PORTC = 0x00;
-            _delay_ms(10);
-        }//f=50Hz
-        /*else if(PINB==0x10)
-        {
-            PORTC = 0x01;
-            _delay_ms(7);
-            PORTC = 0x00;
-            _delay_ms(7);
-        }//f=approx 75Hz
-         else if(PINB==0x20)
-        {
-            PORTC = 0x01;
-            _delay_ms(20);
-            PORTC = 0x00;
-            _delay_ms(20);
-        }//f=25Hz
-        */
-    }
-    
-    
-}

GPIO_check_Input/main.c

@@ -0,0 +1,14 @@
+#include <avr/io.h>
+#define F_CPU 16000000//16MHz
+#include <util/delay.h>
+
+int main(void)
+{
+	 DDRL &= 0xfe;//port L direction: input; pin 49
+	 PORTL |= 0x01;//L01 PU resistor activated
+     DDRC |= 0x01;//pin 37: pin C7 //direction: output
+     while(1)
+     {
+     	PORTC = (PINL &= 0x01);
+     }
+ }

GPIO_check_Input/main.hex

@@ -13,11 +13,8 @@
 :1000C0000C947E000C947E000C947E000C947E00B8
 :1000D0000C947E000C947E000C947E000C947E00A8
 :1000E0000C947E0011241FBECFEFD1E2DEBFCDBF46
-:1000F00000E00CBF0E9480000C94AA000C94000049
-:100100008FEF87B981B914B885B981E093B192B9FD
-:1001100093B19F3F69F488B9EFE1FEE43197F1F7BD
-:1001200000C0000018B8EFE1FEE43197F1F70FC00E
-:1001300093B19111EBCF88B9EFE3FCE93197F1F777
-:1001400000C0000018B8EFE3FCE93197F1F700C0F8
-:080150000000DCCFF894FFCFA2
+:1000F00000E00CBF0E9480000C9492000C94000061
+:1001000080910A018E7F80930A0180910B018160AA
+:1001100080930B01389A80910901817080930901C5
+:0801200088B9F9CFF894FFCF74
 :00000001FF

Input_Capture_Unit/main.c

@@ -4,18 +4,19 @@
 int main(void)
 {
 	DDRA=0xFF;//Port A Output
-	DDRB=0xFF;//Port B Output
-	PORTD=0xFF;//activate pull-up
+	DDRC=0xFF;//Port C Output
+	PORTD=0xFF;//activate pull-up//ICP1 in pin PD4= grey 47
 	while(1)
 	{
 		TCCR1A=0x00;//Normal mode
-		TCCR1B=0x41;//rising edge, no pre-scaler, no noise canceller
+		//TCCR1B=0x41;//rising edge, no pre-scaler, no noise canceller
+		TCCR1B=0x45;//rising edge, pre-scaler is max=1024, no noise canceller
 		//while(TIFR1 && (1<<ICF1)==0);//
 		//TIFR1=(1<<ICF1);//clear ICF1
 		while(TIFR1 && 0x20 == 0x00);//waiting for ICF1 Flag to be set
 		//ICF1=0;//why not this command?
 		TIFR1=(1<<ICF1);
-		PORTA=ICR1L;//
-		PORTB=ICR1H;//	
+		PORTA=ICR1L;//check output in pins 22-29(A7=29) 
+		PORTC=ICR1H;//check output in pins 37-30(C0=30)	
 	}
 }

Input_Capture_Unit/main.hex

@@ -14,7 +14,7 @@
 :1000D0000C947E000C947E000C947E000C947E00A8
 :1000E0000C947E0011241FBECFEFD1E2DEBFCDBF46
 :1000F00000E00CBF0E9480000C9493000C94000060
-:100100008FEF81B984B98BB921E490E2109280001D
+:100100008FEF81B987B98BB925E490E21092800016
 :100110002093810086B396BB8091860082B980913E
-:0A012000870085B9F3CFF894FFCFF4
+:0A012000870088B9F3CFF894FFCFF1
 :00000001FF

Input_Capture_Unit/readme.txt

@@ -2,7 +2,7 @@ Registers involved:
 
 GPIO:
 DDRA: Data Direction Register for Port A= 0xFF for output
-DDRB: Data Direction Register for Port B= 0xFF for output
+DDRC: Data Direction Register for Port C= 0xFF for output
 PORTD: Port D Data Register= set as 0xFF to activate pull up registers
 
 Input Capture Unit(ICU):

Led_Analysis.txt

@@ -13,4 +13,3 @@ max current LED can tolerate:
 Resistance offered within the board(if any):
 
 
-Hi- change made

PWM_Module/PWM_deadtime/main.c

@@ -6,14 +6,17 @@ int main(void)
 {
 	DDRB = 0xFF;//Port B set as output
 	
-	OCR0A= 0x7F;//50 percent of 255=duty cycle
+	OCR0A= 0x7F;//50 percent of 255=duty cycle//decimal=127
 	TCCR0A = 0x83;
-	TCCR0B = 0x03;//prescaler = 64 for 1kHz
+	//TCCR0B = 0x03;//prescaler = 64 for 1kHz
+	TCCR0B = 0x02;//prescaler = 8 for 8kHz
 	//output at OC0A=pin 13
 
-	OCR2A= 0x87;//duty cycle=  47 percent, value= 0.53*255=135
+	//OCR2A= 0x87;//duty cycle=  47 percent, value= 0.53*255=135
+	OCR2A= 0x83;//duty cycle=  48 percent, value= 0.52*255=131
 	TCCR2A = 0xC3;//inverting PWM
-	TCCR2B = 0x04;//prescaler = 64 for 1 kHz
+	//TCCR2B = 0x04;//prescaler = 64 for 1 kHz
+	TCCR2B = 0x02;//prescaler = 8 for 8kHz
 	//output at OC2A=pin 10
 
 	while(1);

PWM_Module/PWM_deadtime/main.hex

@@ -13,8 +13,8 @@
 :1000C0000C947E000C947E000C947E000C947E00B8
 :1000D0000C947E000C947E000C947E000C947E00A8
 :1000E0000C947E0011241FBECFEFD1E2DEBFCDBF46
-:1000F00000E00CBF0E9480000C9492000C94000061
-:100100008FEF84B98FE787BD83E884BD83E085BD29
-:1001100087E88093B30083EC8093B00084E0809301
-:08012000B100FFCFF894FFCFFE
+:1000F00000E00CBF0E9480000C9490000C94000063
+:100100008FEF84B98FE787BD93E894BD82E085BD0A
+:100110009093B30093EC9093B0008093B100FFCF25
+:04012000F894FFCF81
 :00000001FF

PWM_Module/PWM_deadtime/readme.txt

@@ -31,4 +31,6 @@ The most important nonlinearity is caused by the necessary
 blanking time between top and bottom switch to avoid inverter
 leg shoot-through of the DC bus circuit. The type of the switch
 and pre-driver characteristics determine amount of the
-necessary blank time.
+necessary blank time.
+
+for a difference of 2 decimal numbers in binary, and frequency of 8kHz, we obtain a deadtime of 1.5 microseconds

PWM_Module/Sinusoidal_PWM_LuT/Makefile

@@ -0,0 +1,106 @@
+# simple AVR Makefile
+#
+# written by michael cousins (http://github.com/mcous)
+# released to the public domain
+
+# Makefile
+#
+# targets:
+#   all:    compiles the source code
+#   test:   tests the isp connection to the mcu
+#   flash:  writes compiled hex file to the mcu's flash memory
+#   fuse:   writes the fuse bytes to the MCU
+#   disasm: disassembles the code for debugging
+#   clean:  removes all .hex, .elf, and .o files in the source code and library directories
+
+# parameters (change this stuff accordingly)
+# project name
+PRJ = main
+# avr mcu
+MCU = atmega2560
+# mcu clock frequency
+CLK = 16000000
+# avr programmer (and port if necessary)
+# e.g. PRG = usbtiny -or- PRG = arduino -P /dev/tty.usbmodem411
+PRG = wiring -P /dev/ttyACM0
+# fuse values for avr: low, high, and extended
+# these values are from an Arduino Uno (ATMega328P)
+# see http://www.engbedded.com/fusecalc/ for other MCUs and options
+LFU = 0xFF
+HFU = 0xD0
+EFU = 0xFD
+# program source files (not including external libraries)
+SRC = $(PRJ).c
+# where to look for external libraries (consisting of .c/.cpp files and .h files)
+# e.g. EXT = ../../EyeToSee ../../YouSART
+EXT =
+
+
+#################################################################################################
+# \/ stuff nobody needs to worry about until such time that worrying about it is appropriate \/ #
+#################################################################################################
+
+# include path
+INCLUDE := $(foreach dir, $(EXT), -I$(dir))
+# c flags
+CFLAGS    = -Wall -Os -DF_CPU=$(CLK) -mmcu=$(MCU) $(INCLUDE)
+# any aditional flags for c++
+CPPFLAGS =
+
+# executables
+AVRDUDE = avrdude  -C /usr/share/arduino/hardware/tools/avrdude.conf -c $(PRG) -p $(MCU)  -b 115200 -D
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE    = avr-size --format=avr --mcu=$(MCU)
+CC      = avr-gcc
+
+# generate list of objects
+CFILES    = $(filter %.c, $(SRC))
+EXTC     := $(foreach dir, $(EXT), $(wildcard $(dir)/*.c))
+CPPFILES  = $(filter %.cpp, $(SRC))
+EXTCPP   := $(foreach dir, $(EXT), $(wildcard $(dir)/*.cpp))
+OBJ       = $(CFILES:.c=.o) $(EXTC:.c=.o) $(CPPFILES:.cpp=.o) $(EXTCPP:.cpp=.o)
+
+# user targets
+# compile all files
+all: $(PRJ).hex
+
+# test programmer connectivity
+test:
+	$(AVRDUDE) -v
+
+# flash program to mcu
+flash: all
+	$(AVRDUDE) -U flash:w:$(PRJ).hex:i
+
+# write fuses to mcu
+fuse:
+	$(AVRDUDE) -U lfuse:w:$(LFU):m -U hfuse:w:$(HFU):m -U efuse:w:$(EFU):m
+
+# generate disassembly files for debugging
+disasm: $(PRJ).elf
+	$(OBJDUMP) -d $(PRJ).elf
+
+# remove compiled files
+clean:
+	rm -f *.hex *.elf *.o
+	$(foreach dir, $(EXT), rm -f $(dir)/*.o;)
+
+# other targets
+# objects from c files
+.c.o:
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# objects from c++ files
+.cpp.o:
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
+
+# elf file
+$(PRJ).elf: $(OBJ)
+	$(CC) $(CFLAGS) -o $(PRJ).elf $(OBJ)
+
+# hex file
+$(PRJ).hex: $(PRJ).elf
+	rm -f $(PRJ).hex
+	$(OBJCOPY) -j .text -j .data -O ihex $(PRJ).elf $(PRJ).hex
+	$(SIZE) $(PRJ).elf

PWM_Module/Sinusoidal_PWM_LuT/main.c

@@ -0,0 +1,387 @@
+#define F_CPU 16000000//16Mhz
+#define MS_DELAY 1000
+#include <avr/io.h>
+#include <util/delay.h>
+int main(void)
+{
+	DDRB = 0xFF;//Port B set as output
+	//DDRB |= (1 <<3);//Port B(0:3) set as output
+	uint16_t testArray[360]={0x80,
+0x82,
+0x84,
+0x86,
+0x88,
+0x8b,
+0x8d,
+0x8f,
+0x91,
+0x93,
+0x96,
+0x98,
+0x9a,
+0x9c,
+0x9e,
+0xa0,
+0xa3,
+0xa5,
+0xa7,
+0xa9,
+0xab,
+0xad,
+0xaf,
+0xb1,
+0xb3,
+0xb5,
+0xb7,
+0xb9,
+0xbb,
+0xbd,
+0xbf,
+0xc1,
+0xc3,
+0xc5,
+0xc7,
+0xc9,
+0xca,
+0xcc,
+0xce,
+0xd0,
+0xd1,
+0xd3,
+0xd5,
+0xd6,
+0xd8,
+0xda,
+0xdb,
+0xdd,
+0xde,
+0xe0,
+0xe1,
+0xe3,
+0xe4,
+0xe5,
+0xe7,
+0xe8,
+0xe9,
+0xea,
+0xec,
+0xed,
+0xee,
+0xef,
+0xf0,
+0xf1,
+0xf2,
+0xf3,
+0xf4,
+0xf5,
+0xf6,
+0xf7,
+0xf7,
+0xf8,
+0xf9,
+0xf9,
+0xfa,
+0xfb,
+0xfb,
+0xfc,
+0xfc,
+0xfd,
+0xfd,
+0xfd,
+0xfe,
+0xfe,
+0xfe,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xff,
+0xfe,
+0xfe,
+0xfe,
+0xfd,
+0xfd,
+0xfd,
+0xfc,
+0xfc,
+0xfb,
+0xfb,
+0xfa,
+0xf9,
+0xf9,
+0xf8,
+0xf7,
+0xf7,
+0xf6,
+0xf5,
+0xf4,
+0xf3,
+0xf2,
+0xf1,
+0xf0,
+0xef,
+0xee,
+0xed,
+0xec,
+0xea,
+0xe9,
+0xe8,
+0xe7,
+0xe5,
+0xe4,
+0xe3,
+0xe1,
+0xe0,
+0xde,
+0xdd,
+0xdb,
+0xda,
+0xd8,
+0xd6,
+0xd5,
+0xd3,
+0xd1,
+0xd0,
+0xce,
+0xcc,
+0xca,
+0xc9,
+0xc7,
+0xc5,
+0xc3,
+0xc1,
+0xbf,
+0xbd,
+0xbb,
+0xb9,
+0xb7,
+0xb5,
+0xb3,
+0xb1,
+0xaf,
+0xad,
+0xab,
+0xa9,
+0xa7,
+0xa5,
+0xa3,
+0xa0,
+0x9e,
+0x9c,
+0x9a,
+0x98,
+0x96,
+0x93,
+0x91,
+0x8f,
+0x8d,
+0x8b,
+0x88,
+0x86,
+0x84,
+0x82,
+0x80,
+0x7d,
+0x7b,
+0x79,
+0x77,
+0x74,
+0x72,
+0x70,
+0x6e,
+0x6c,
+0x69,
+0x67,
+0x65,
+0x63,
+0x61,
+0x5f,
+0x5c,
+0x5a,
+0x58,
+0x56,
+0x54,
+0x52,
+0x50,
+0x4e,
+0x4c,
+0x4a,
+0x48,
+0x46,
+0x44,
+0x42,
+0x40,
+0x3e,
+0x3c,
+0x3a,
+0x38,
+0x36,
+0x35,
+0x33,
+0x31,
+0x2f,
+0x2e,
+0x2c,
+0x2a,
+0x29,
+0x27,
+0x25,
+0x24,
+0x22,
+0x21,
+0x1f,
+0x1e,
+0x1c,
+0x1b,
+0x1a,
+0x18,
+0x17,
+0x16,
+0x15,
+0x13,
+0x12,
+0x11,
+0x10,
+0xf,
+0xe,
+0xd,
+0xc,
+0xb,
+0xa,
+0x9,
+0x8,
+0x8,
+0x7,
+0x6,
+0x6,
+0x5,
+0x4,
+0x4,
+0x3,
+0x3,
+0x2,
+0x2,
+0x2,
+0x1,
+0x1,
+0x1,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x0,
+0x1,
+0x1,
+0x1,
+0x2,
+0x2,
+0x2,
+0x3,
+0x3,
+0x4,
+0x4,
+0x5,
+0x6,
+0x6,
+0x7,
+0x8,
+0x8,
+0x9,
+0xa,
+0xb,
+0xc,
+0xd,
+0xe,
+0xf,
+0x10,
+0x11,
+0x12,
+0x13,
+0x15,
+0x16,
+0x17,
+0x18,
+0x1a,
+0x1b,
+0x1c,
+0x1e,
+0x1f,
+0x21,
+0x22,
+0x24,
+0x25,
+0x27,
+0x29,
+0x2a,
+0x2c,
+0x2e,
+0x2f,
+0x31,
+0x33,
+0x35,
+0x36,
+0x38,
+0x3a,
+0x3c,
+0x3e,
+0x40,
+0x42,
+0x44,
+0x46,
+0x48,
+0x4a,
+0x4c,
+0x4e,
+0x50,
+0x52,
+0x54,
+0x56,
+0x58,
+0x5a,
+0x5c,
+0x5f,
+0x61,
+0x63,
+0x65,
+0x67,
+0x69,
+0x6c,
+0x6e,
+0x70,
+0x72,
+0x74,
+0x77,
+0x79,
+0x7b,
+0x7d};
+	while(1)
+	{
+		for(int i=0;i<360;i++)
+		{
+			OCR0A= testArray[i];
+			TCCR0A = 0x83;//non-inverting pwm
+			TCCR0B = 0x03;//prescaler = 64 for frequency to be approx 1kHz
+			//output of pwm is at pin 13(OC0)
+			_delay_ms(50);
+		}
+		//OCR0A= testArray[0];
+		/*OCR0A = 0x80;
+			TCCR0A = 0x83;//non-inverting pwm
+			TCCR0B = 0x03;
+			*/
+	}
+	
+	
+}

PWM_Module/Sinusoidal_PWM_LuT/main.hex

@@ -0,0 +1,70 @@
+:100000000C9472000C948B000C948B000C948B005D
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PWM_Module/Triangular_PWM/Makefile

@@ -0,0 +1,106 @@
+# simple AVR Makefile
+#
+# written by michael cousins (http://github.com/mcous)
+# released to the public domain
+
+# Makefile
+#
+# targets:
+#   all:    compiles the source code
+#   test:   tests the isp connection to the mcu
+#   flash:  writes compiled hex file to the mcu's flash memory
+#   fuse:   writes the fuse bytes to the MCU
+#   disasm: disassembles the code for debugging
+#   clean:  removes all .hex, .elf, and .o files in the source code and library directories
+
+# parameters (change this stuff accordingly)
+# project name
+PRJ = main
+# avr mcu
+MCU = atmega2560
+# mcu clock frequency
+CLK = 16000000
+# avr programmer (and port if necessary)
+# e.g. PRG = usbtiny -or- PRG = arduino -P /dev/tty.usbmodem411
+PRG = wiring -P /dev/ttyACM0
+# fuse values for avr: low, high, and extended
+# these values are from an Arduino Uno (ATMega328P)
+# see http://www.engbedded.com/fusecalc/ for other MCUs and options
+LFU = 0xFF
+HFU = 0xD0
+EFU = 0xFD
+# program source files (not including external libraries)
+SRC = $(PRJ).c
+# where to look for external libraries (consisting of .c/.cpp files and .h files)
+# e.g. EXT = ../../EyeToSee ../../YouSART
+EXT =
+
+
+#################################################################################################
+# \/ stuff nobody needs to worry about until such time that worrying about it is appropriate \/ #
+#################################################################################################
+
+# include path
+INCLUDE := $(foreach dir, $(EXT), -I$(dir))
+# c flags
+CFLAGS    = -Wall -Os -DF_CPU=$(CLK) -mmcu=$(MCU) $(INCLUDE)
+# any aditional flags for c++
+CPPFLAGS =
+
+# executables
+AVRDUDE = avrdude  -C /usr/share/arduino/hardware/tools/avrdude.conf -c $(PRG) -p $(MCU)  -b 115200 -D
+OBJCOPY = avr-objcopy
+OBJDUMP = avr-objdump
+SIZE    = avr-size --format=avr --mcu=$(MCU)
+CC      = avr-gcc
+
+# generate list of objects
+CFILES    = $(filter %.c, $(SRC))
+EXTC     := $(foreach dir, $(EXT), $(wildcard $(dir)/*.c))
+CPPFILES  = $(filter %.cpp, $(SRC))
+EXTCPP   := $(foreach dir, $(EXT), $(wildcard $(dir)/*.cpp))
+OBJ       = $(CFILES:.c=.o) $(EXTC:.c=.o) $(CPPFILES:.cpp=.o) $(EXTCPP:.cpp=.o)
+
+# user targets
+# compile all files
+all: $(PRJ).hex
+
+# test programmer connectivity
+test:
+	$(AVRDUDE) -v
+
+# flash program to mcu
+flash: all
+	$(AVRDUDE) -U flash:w:$(PRJ).hex:i
+
+# write fuses to mcu
+fuse:
+	$(AVRDUDE) -U lfuse:w:$(LFU):m -U hfuse:w:$(HFU):m -U efuse:w:$(EFU):m
+
+# generate disassembly files for debugging
+disasm: $(PRJ).elf
+	$(OBJDUMP) -d $(PRJ).elf
+
+# remove compiled files
+clean:
+	rm -f *.hex *.elf *.o
+	$(foreach dir, $(EXT), rm -f $(dir)/*.o;)
+
+# other targets
+# objects from c files
+.c.o:
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# objects from c++ files
+.cpp.o:
+	$(CC) $(CFLAGS) $(CPPFLAGS) -c $< -o $@
+
+# elf file
+$(PRJ).elf: $(OBJ)
+	$(CC) $(CFLAGS) -o $(PRJ).elf $(OBJ)
+
+# hex file
+$(PRJ).hex: $(PRJ).elf
+	rm -f $(PRJ).hex
+	$(OBJCOPY) -j .text -j .data -O ihex $(PRJ).elf $(PRJ).hex
+	$(SIZE) $(PRJ).elf

PWM_Module/Triangular_PWM/main.c

@@ -1,4 +1,4 @@
-//sinusoidal PWM
+//triangular PWM
 
 
 
@@ -23,4 +23,6 @@ int main(void)
 	}
 	
 	
-}
+}
+
+//Problem with this code: The duty cycle here varies in triangular manner and isnt sinusoidal 

PWM_Module/Triangular_PWM/readme.txt

@@ -14,7 +14,7 @@ Bit [1:0]= WGM[1:0]- Waveform Generation Mode=11- for non-inverting fast PWM.
 TCCR0B: Timer/Counter 0 Control Register B = 0x03
 Bit [2:0] – CS0[2:0]-Clock Select = 011- for prescaler=64 in order to obtain frequency of 1kHz
 
-The PWM runs in a loop with duty-cycle varying(i.e. changing value of OCR0A) such that the mean value follows a sinusoidal pattern. This function maybe helpful in AC generators.
+The PWM runs in a loop with duty-cycle varying(i.e. changing value of OCR0A) such that the mean value follows a linear pattern. This function maybe helpful in AC generators.
 
 inbuilt delay function used to induce a delay of 0.5 seconds before the duty cycle of the PWM changes