I need help.. i have the coding as shown below, but its not working as what i expected.. base on what i know, the coding below should provide me a 2MHz frecuency at output pin 9 and 1kHz at ouput pin 8.. but when i test it with oscilloscope i only obtain 2kHz at output pin 9.. what should i do to obtain 2MHz at output pin 9?? how can i change/modified the code?? many2 thankz..

code:

#include <util/delay.h>
int rog = 8;
void setup() {
  pinMode(9, OUTPUT);
  pinMode(rog, OUTPUT);
  
  TCCR1A = 0;
  TCCR1B = 0;
  
  TCCR1A |= _BV(WGM11) | _BV(COM1A1);
  TCCR1B |= _BV(WGM12) | _BV(WGM13) | _BV(CS10) | _BV(ICNC1);

  ICR1= 7;

  OCR1A = 3;
}

void loop(){
delayrog(); 

}

void delayrog(){
   while (1)
	{
		
  digitalWrite(rog, HIGH);
  _delay_ms(0.52);
  digitalWrite(rog, LOW);
  _delay_ms(0.52);
  
	}
}

 

I only see pin 8 being written.

 

none of your pins are capable of any amount of MHz
http://arduino.cc/playground/Code/PwmFrequency

the base frequency for pins 3, 9, 10, and 11 is 31250 Hz
...
the base frequency for pins 5 and 6 is 62500 Hz

 

but, why i can get 2Mz at output pin 9 when i only use code below, but when i add up another output at pin 8 i wont get 2Mz at output pin 9.. i found this weird.. help me..

void setup() {
  pinMode(9, OUTPUT);
  
  TCCR1A = 0;
  TCCR1B = 0;
  
  TCCR1A |= _BV(WGM11) | _BV(COM1A1);
  TCCR1B |= _BV(WGM12) | _BV(WGM13) | _BV(CS10) | _BV(ICNC1);

  ICR1= 7;

  OCR1A = 3;
}

void loop(){

}