Hi. Here is the program code for operating a timer based on the frequency of a quartz oscillator. How can I change this code if it is necessary to work not with the reference frequency of the quartz oscillator, but with the external frequency supplied to the ESP32 input? For example, I set up a time...

I need to divide the input frequency by 10. I don't want to use multiple SN74LS93 enclosures. I set the input frequency to pin 0. The measured frequency is 50 MHz. To increase the input frequency measurement, I need to make a divider by 10. The output frequency to pin 1 - output frequency = (50/10) ...

And if you use not pin 27 to call an interrupt, but another pin that has a higher priority?
Which pin input can have a higher priority?

I didn't understand what I needed to do "Suggest you use a peripheral (RMT or MCPWM, for example) if you need to measure the time precisely"? There is an assumption that the interrupt on pin 27 has a low interrupt priority. And if another interrupt has a higher priority, then the interrupt with a hi...

Hi. I am sending a stable signal with a frequency of 10000 Hz from a quartz oscillator. The variable M must be stable and in the range from M=240013970 - 240013971.But the variable M varies over a larger range. I think other interrupts may have a higher priority and calling my interrupt is waiting f...