Arduino UNO digital pin config

[susane]

Hi

I am using arduino uno

I want to use one of the digital pins of arduino as an output, but i want it to oscillate at a given frequency
i used this code and it worked perfectly

for (int i = 0; i <10000;i++)
{
  int pin = 1;
    digitalWrite(Pin,HIGH);
    digitalWrite(Pin,LOW);
 
}

read_ADC();

this code is in an infinite loop and the pin oscillates at a freq
but the problem is i want this pin to keep oscillating while i am executing the read_ADC function.
with my current code when the program executes the read_ADC function the loop is not working and i am not able to generate these osciallations.

Is there a way that both these process can run in parallel?

 

[andre_luis]

You could toogle the pins within a Timer interrupt vector, whereas A/D is read at the main loop() function. Anyway, a priori this could be not considered as a parallel processing.

 

[susane]

can you please send me the code for this?
i am new to programming and i didnt understood what you said.

 

[KlausST]

Hi,

read about "waveform generation" or "PWM generation" in the microcontroller´s datasheet.

Only a few bytes to setup, then it takes no further processing power.

Klaus

 

[andre_luis]

can you please send me the code for this?
i am new to programming and i didnt understood what you said.

You can get a lot of information about timer interrupt, as well a working sample code here:

• Arduino Timers and Interrupts