Hi, I have an arduino nano with a ATmega328 and I can’t make pulses shorter than 11microseconds. I’m using a 100MHz probe with a 250 bandwith oscilloscope. I have used the function delayMicrosecond but it doesn’t works fine for periods shorter than 100microseconds, It seems “bad calibrated” the time that I measure it’s not a linear function of the time that I put in the software. Using the asm(“nop\n\t”) I can’t get pulses shorter than 11microseconds. I’m using the blink example in different pins but the same problem.