Generating square and inverted square pulse in Arduino Uno R3

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1

Can anyone give me a code for the above topic for generating 2 square pulse and 2 inverted square pulse with duty cycle of 50%, switching frequency of 200kHz and dead time of 600ns.

2

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3
4

Doesn't generally happen around here. Help you learn to write something like that, sure. Write it for you? Ask a moderator to move your request here:

But, your description is 'unusual'.
Sounds like "I want four outputs, two in phase, two out of phase, at 200 kHz and 50% duty cycle". Fine, but how does "dead time of 600 ns" fit into that?
Start there. Once we understand the whole requirement, we can begin.

5

@sart1 to that end, a timing diagram would be worth 1024 words.

a7

6

Sounds a lot like the specs for a PWM drive to an H-bridge. Dead time is to prevent shoot-through current.

1 Like
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We know that... But the OP has gone silent. Possibly, 'write it for me' was the plan. We may never know.

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hey folks, ive written a code of generating square pulse in arduino mega. Now i want a phase difference of 3us between pin 11 and pin 6. Can anyone tell me?

the mentioned code is given below:

// 4 PWM signal generator using Timer1 and Timer3 on Arduino Mega 2560

void setup() {
pinMode(11, OUTPUT); // output A (PWM) using Timer1
pinMode(12, OUTPUT); // output B (PWM) using Timer1
pinMode(5, OUTPUT); // output C (PWM) using Timer3
pinMode(2, OUTPUT); // output D (PWM) using Timer3
pinMode(6, OUTPUT); // output A (PWM) using Timer4
pinMode(7, OUTPUT); // output B (PWM) using Timer4
pinMode(46, OUTPUT); // output C (PWM) using Timer5
pinMode(45, OUTPUT); // output D (PWM) using Timer5

// Timer1 setup
TCCR1A = 0; // clear Timer1 registers
TCCR1B = 0;
TCNT1 = 0;

// Timer3 setup
TCCR3A = 0; // clear Timer3 registers
TCCR3B = 0;
TCNT3 = 0;

// Timer4 setup
TCCR4A = 0; // clear Timer4 registers
TCCR4B = 0;
TCNT4 = 0;

// Timer5 setup
TCCR5A = 0; // clear Timer5 registers
TCCR5B = 0;
TCNT5 = 0;

// ICR1 and Prescaler sets frequency for Timer1
TCCR1B |= _BV(CS10); // no prescaler for Timer1
ICR1 = 193; // PWM mode counts up and back down for 80 counts (Timer1)

// ICR3 and Prescaler sets frequency for Timer3
TCCR3B |= _BV(CS30); // no prescaler for Timer3
ICR3 = 193; // PWM mode counts up and back down for 80 counts (Timer3)

// ICR4 and Prescaler sets frequency for Timer4
TCCR4B |= _BV(CS40); // no prescaler for Timer4
ICR4 = 193; // PWM mode counts up and back down for 80 counts (Timer4)

// ICR5 and Prescaler sets frequency for Timer5
TCCR5B |= _BV(CS50); // no prescaler for Timer5
ICR5 = 193; // PWM mode counts up and back down for 80 counts (Timer5)

// Pin match and PWM mode setup for Timer1
OCR1A = 101; // Pin 11 match for Timer1
TCCR1A |= _BV(COM1A1) | _BV(COM1A0); // output A set rising/clear falling for Timer1
OCR1B = 92; // Pin 12 match for Timer1
TCCR1A |= _BV(COM1B1); // output B clear rising/set falling for Timer1

// Pin match and PWM mode setup for Timer3
OCR3A = 101; // Pin 5 match for Timer3
TCCR3A |= _BV(COM3A1) | _BV(COM3A0); // output A set rising/clear falling for Timer3
OCR3B = 92; // Pin 2 match for Timer3
TCCR3A |= _BV(COM3B1); // output B clear rising/set falling for Timer3

// Pin match and PWM mode setup for Timer4
OCR4A = 101; // Pin 11 match for Timer4
TCCR4A |= _BV(COM4A1) | _BV(COM4A0); // output A set rising/clear falling for Timer4
OCR4B = 92; // Pin 12 match for Timer4
TCCR4A |= _BV(COM4B1); // output B clear rising/set falling for Timer4

// Pin match and PWM mode setup for Timer5
OCR5A = 101; // Pin 5 match for Timer5
TCCR5A |= _BV(COM5A1) | _BV(COM5A0); // output A set rising/clear falling for Timer5
OCR5B = 92; // Pin 2 match for Timer5
TCCR5A |= _BV(COM5B1); // output B clear rising/set falling for Timer5

// PWM mode with ICR1 and ICR3 Mode 10 setup
TCCR1B |= _BV(WGM13); // Timer1 PWM mode with ICR1 Mode 10
TCCR1A |= _BV(WGM11); // Timer1 WGM13:WGM10 set 1010

TCCR3B |= _BV(WGM33); // Timer3 PWM mode with ICR3 Mode 10
TCCR3A |= _BV(WGM31); // Timer3 WGM33:WGM30 set 1010

// PWM mode with ICR4 and ICR5 Mode 10 setup
TCCR4B |= _BV(WGM43); // Timer4 PWM mode with ICR1 Mode 10
TCCR4A |= _BV(WGM41); // Timer4 WGM13:WGM10 set 1010

TCCR5B |= _BV(WGM53); // Timer5 PWM mode with ICR3 Mode 10
TCCR5A |= _BV(WGM51); // Timer5 WGM33:WGM30 set 1010
}

void loop() {
}

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