The pulse output from the 40MHz clock source of ESP32's 64 bit timer may not be very smooth

[dbxzjq]

The pulse output from the 40MHz clock source of ESP32's 64 bit timer may not be very smooth,If the timer can support clock frequencies up to 160MHz, the step pulses during high-frequency output will be smoother

STM32F407 supports 84 MHz or 168 MHz timer clock sources, which can output step pulses more smoothly at higher frequencies

I am also looking for a more economical microcontroller and timer clock that supports higher clock frequencies, and porting code to achieve smoother step pulse output

[jzolee]

Hello, I know this is not the ideal solution, but the project started because I was tired of struggling with the "jitter problem" of the linuxCNC software step generator. The first step of the project was: what do I find in the drawer? This was not intended to be a professional solution, I just wanted it to be better than the LinuxCNC software step generator. And I posted it to give others an idea. I hope you find useful things in the code.