How to reset micros() to start/zero ?

Forum 2005-2010 (read only) General Frequently-Asked Questions
17

After taking a look at the source code of wiring/arduino_ide, I found out this:

timer0_overflow_count

That's the one micros() uses.

So I did a quick test:

#include <WProgram.h>

int8_t secondsCounter = 0;
extern unsigned long timer0_overflow_count;

void setup() 
{
  Serial.begin(115200);
  timer0_overflow_count = 0;
}

void loop() 
{
    delay(1000);
    secondsCounter++;
    if (secondsCounter > 4) 
    {
      timer0_overflow_count = 0;
      secondsCounter = 0;
      Serial.println("!");
    } else Serial.println(micros());

}

And heck, it works. Could it be so simple, or am I going to mess up other stuff up? Just wondering...

Wk