When I use ledc library so the output signal is OK even at 80khz but as suddenly I use my code using the timer so the signal is unstable

The picture is just an example of it being seen only a problem with the timer ledc library works correctly that i tried but i need to set the timer to the frequency of 40khz my project.

Hi

I have in mind that the timer is unstable as it is seen in this photo.

Hi

Can you please tell me why this setting is unstable and the oscilloscope output can see bending as otherwise I could set the timer to be stable at 40Khz thank you for your advice.

my code

#include "driver/timer.h"

static intr_handle_t s_timer_handle;


void init_timer(uint64_t timer_period_us ...

Hello Friends

Please give me some advice on the code I'm trying to adjust for ESP32 for a long time but still does not want to work properly please advise me how to modify line 38 (uint8_t ctr = TCNT0;) to work correctly.

here is my code for ESP32 who does not want to work and flood code for ...

Hello

I do not know how to set timers i am not totally sure how to edit this code for ESP32 i do not have any experience with ESP32 development board

Hello friends

Can anyone advise me how to edit this sketch to work with ESP32 in advance thanks for your reply.

https://github.com/dc42/arduino/blob/master/MetalDetector/MetalDetector.ino

Problem is with this frequent code

ISR(TIMER1_OVF_vect)
{
++ticks;
uint8_t ctr = TCNT0;
int16_t val = (int16 ...