ESP32 - digitalPulse() not changing pulse width

[SimonGAndrews]

While attempting to use the servo module it seems most likely that the supporting Espruino function digitalPulse(0 is not working correctly on an ESP32 ( Firebeetle ESP32-E).

I have put a logic analyser on the pulsed pin and it seems the pulse width is always about 600us in response to a digitalPulse(D4,1,x) command no matter what the value of x. Where x should be the length of the pulse in milli seconds.

Please see supporting discussion at https://forum.espruino.com/conversations/389271/

[SimonGAndrews]

Happy to support with further testing , on different ESp32 boards and Espruino Pico if that helps.

[gfwilliams]

Thanks - very strange. And longer pulses don't work?

This could potentially be related to jstimer changes that went in a while ago, where we moved to using relative times rather than absolute for timer tasks. I guess we could test before/after to see if that's what broke it

[SimonGAndrews]

Thanks, Ok I’ll try a version pre that change and longer pulses. I will also check my measurement method with a pico.

[MaBecker]

@SimonGAndrews Does this also occour with the latest firmware?

[SimonGAndrews]

Hi , I will check and let you know .