Spindle enable Bit

[cncPan]

Hello
I am sending M3 , M5 commands but i can not see PB1 bit (spindle enable bit) to toggle.

[Alfrederson]

@yaroslavVl I told you it was going to be a problem

@cncPan check this: usbcnc/grbl#63

[cncPan]

Thank you for the comment . I configured $30 = $31 = 1000 , min and max spindle speed the same value and used spindle_pwm_bit as enable bit.

[robomechs]

Ok, I'll fix it.
Now we have next logic:

• PWM+direction (def VARIABLE_SPINDLE, undef USE_SPINDLE_DIR_AS_ENABLE_PIN) or
• PWM+enable (def VARIABLE_SPINDLE, def USE_SPINDLE_DIR_AS_ENABLE_PIN) or
• enable+direction ((doesn't work now. bug) undef VARIABLE_SPINDLE, undef USE_SPINDLE_DIR_AS_ENABLE_PIN) or
• just enable (undef VARIABLE_SPINDLE, def USE_SPINDLE_DIR_AS_ENABLE_PIN)

Is it ok if we will use PWM+enable+direction instead of PWM+enable?

[Alfrederson]

@yaroslavVl I guess so, since it doesn't leave either pin non-functional

[robomechs]

Ok, now PWM, Direction and Enable are avalaible by default. You can disable PWM (VARIABLE_SPINDLE) or Enable (USE_SPINDLE_ENABLE_PIN) or both, but direction will always run.