#include "grbl.h"

Functions
void	spindle_init ()
	Initializes spindle pins and hardware PWM, if enabled. More...

uint8_t	spindle_get_state ()
	Returns current spindle output state. Overrides may alter it from programmed states. More...

void	spindle_stop ()
	Disables the spindle and sets PWM output to zero when PWM variable spindle speed is enabled. More...

void	spindle_set_speed (uint16_t pwm_value)
	Sets spindle speed PWM output and enable pin, if configured. Called by spindle_set_state() More...

uint16_t	spindle_compute_pwm_value (float rpm)
	Called by spindle_set_state() and step segment generator. Keep routine small and efficient. More...

void	spindle_set_state (uint8_t state, float rpm)
	Immediately sets spindle running state with direction and spindle rpm via PWM, if enabled. More...

void	spindle_sync (uint8_t state, float rpm)
	G-code parser entry-point for setting spindle state. Forces a planner buffer sync and bails. More...

Function Documentation

uint16_t spindle_compute_pwm_value ( float rpm )

Called by spindle_set_state() and step segment generator. Keep routine small and efficient.

Computes Mega2560-specific PWM register value for the given RPM for quick updating.

< Scale by spindle speed override value.

< S0 disables spindle

< Set minimum PWM output

NOTE: A nonlinear model could be installed here, if required, but keep it VERY light-weight.

Parameters

rpm	Mega2560 PWM register is 16-bit.

Definition at line 82 of file spindle_control.c.

uint8_t spindle_get_state ( )

Returns current spindle output state. Overrides may alter it from programmed states.

Definition at line 43 of file spindle_control.c.

void spindle_init ( )

Initializes spindle pins and hardware PWM, if enabled.

< Configure as PWM output pin.

< Configure PWM output compare timer

< Set the top value for 16-bit fast PWM mode

< Configure as output pin.

Definition at line 28 of file spindle_control.c.

void spindle_set_speed ( uint16_t pwm_value )

Sets spindle speed PWM output and enable pin, if configured. Called by spindle_set_state()

Sets spindle PWM quickly for stepper ISR. Also called by spindle_set_state().

< Set PWM output level.

< Disable PWM. Output voltage is zero.

< Ensure PWM output is enabled.

Definition at line 71 of file spindle_control.c.

void spindle_set_state	(	uint8_t	state,
		float	rpm
	)

Immediately sets spindle running state with direction and spindle rpm via PWM, if enabled.

Sets spindle running state with direction, enable, and spindle PWM.

< Halt or set spindle direction and rpm.

NOTE: Assumes all calls to this function is when Grbl is not moving or must remain off.

Todo:: May need to be rpm_min*(100/MAX_SPINDLE_SPEED_OVERRIDE);

< Set to report change immediately

Definition at line 112 of file spindle_control.c.

void spindle_stop ( )

Disables the spindle and sets PWM output to zero when PWM variable spindle speed is enabled.

< Disable PWM. Output voltage is zero.

< Set pin to low

Definition at line 59 of file spindle_control.c.

void spindle_sync	(	uint8_t	state,
		float	rpm
	)

G-code parser entry-point for setting spindle state. Forces a planner buffer sync and bails.

Called by g-code parser when setting spindle state and requires a buffer sync.

< Empty planner buffer to ensure spindle is set when programmed.

Definition at line 148 of file spindle_control.c.

Functions

Function Documentation