Erpm output via pwm

Hi,

I started using this amazing Vesc controller, thanks to mister Vedder !!!

I'm using pwm interface to pilot the Vesc in FOC rpm regulation mode but I need too an erpm feedback via pwm for my autopilot.

Does anybody have an idea to do that via a software modification ?

Is it anyway to retrieve a proper sinusoïde on the pcb (hw 6.0) I could use to generate a pwm?

thanks in advance,

best regards,

Jean-Pierre