Problem: Can't use SYNRAD CO2 RF laser

[sk8erpunkd]

Wiki Search Terms

my laser need 1us tickle on pwm to start

Controller Board

ESP32-WROOM

Machine Description

Homemade CNC router (arduino uno with grbl 1.1) updated to esp32 with fluidNC, trying to upgrade from pwm laser diode (40W, 10W optical power) to synrad firestar v30

Input Circuits

No response

Configuration file

Laser:
  pwm_hz: 5000
  output_pin: gpio.23
  disable_with_s0: true
  s0_with_disable: false
  tool_num: 0
  speed_map: 0=0.000% 1000=100.000%

Startup Messages

Connected

User Interface Software

WebUI - LaserGRBL

What happened?

I tried to upgrade the laser head from a "LaserTree 40W laser diode" to "Synrad Firestar v30 75W RF CO2" but it seems the pwm control pin needs a 1us "tickle" to start rf modulation.
i want to know if there's a way to add this the pwm output
i'm a little noob and i don't know if i need this 1us as value for 0% power or it needs to be part of pwm signal all the time

GCode File

No response

Other Information

No response

[bdring]

See this page.

http://wiki.fluidnc.com/en/config/spindle_speed_maps

Calculate the percent from the pulse width and frequency