/
config.h
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/
config.h
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/*
config.h - compile time configuration
Part of Grbl
Copyright (c) 2009-2011 Simen Svale Skogsrud
Copyright (c) 2011 Sungeun K. Jeon
Grbl is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Grbl is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Grbl. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef config_h
#define config_h
// IMPORTANT: Any changes here requires a full re-compiling of the source code to propagate them.
#define BAUD_RATE 9600
// Updated default pin-assignments from 0.6 onwards
// (see bottom of file for a copy of the old config)
#define STEPPERS_DISABLE_DDR DDRB
#define STEPPERS_DISABLE_PORT PORTB
#define STEPPERS_DISABLE_BIT 0
// uncomment this, inverts the stepper enable logic
#define STEPPERS_DISABLE_INVERT 1
#define STEPPING_DDR DDRD
#define STEPPING_PORT PORTD
#define X_STEP_BIT 2
#define Y_STEP_BIT 3
#define Z_STEP_BIT 4
#define X_DIRECTION_BIT 5
#define Y_DIRECTION_BIT 6
#define Z_DIRECTION_BIT 7
#define LIMIT_DDR DDRB
#define LIMIT_PIN PINB
#define X_LIMIT_BIT 1
#define Y_LIMIT_BIT 2
#define Z_LIMIT_BIT 3
#define SPINDLE_ENABLE_DDR DDRB
#define SPINDLE_ENABLE_PORT PORTB
#define SPINDLE_ENABLE_BIT 4
#define SPINDLE_DIRECTION_DDR DDRB
#define SPINDLE_DIRECTION_PORT PORTB
#define SPINDLE_DIRECTION_BIT 5
// This parameter sets the delay time before disabling the steppers after the final block of movement.
// A short delay ensures the steppers come to a complete stop and the residual inertial force in the
// CNC axes don't cause the axes to drift off position. This is particularly important when manually
// entering g-code into grbl, i.e. locating part zero or simple manual machining. If the axes drift,
// grbl has no way to know this has happened, since stepper motors are open-loop control. Depending
// on the machine, this parameter may need to be larger or smaller than the default time.
// NOTE: If defined 0, the delay will not be compiled.
#define STEPPER_IDLE_LOCK_TIME 25 // (milliseconds) - Integer >= 0
// The temporal resolution of the acceleration management subsystem. Higher number give smoother
// acceleration but may impact performance.
// NOTE: Increasing this parameter will help any resolution related issues, especially with machines
// requiring very high accelerations and/or very fast feedrates. In general, this will reduce the
// error between how the planner plans the motions and how the stepper program actually performs them.
// However, at some point, the resolution can be high enough, where the errors related to numerical
// round-off can be great enough to cause problems and/or it's too fast for the Arduino. The correct
// value for this parameter is machine dependent, so it's advised to set this only as high as needed.
// Approximate successful values can range from 30L to 100L or more.
#define ACCELERATION_TICKS_PER_SECOND 50L
// Minimum planner junction speed. Sets the default minimum speed the planner plans for at the end
// of the buffer and all stops. This should not be much greater than zero and should only be changed
// if unwanted behavior is observed on a user's machine when running at very slow speeds.
#define MINIMUM_PLANNER_SPEED 0.0 // (mm/min)
// Minimum stepper rate. Sets the absolute minimum stepper rate in the stepper program and never runs
// slower than this value, except when sleeping. This parameter overrides the minimum planner speed.
// This is primarily used to guarantee that the end of a movement is always reached and not stop to
// never reach its target. This parameter should always be greater than zero.
#define MINIMUM_STEPS_PER_MINUTE 800 // (steps/min) - Integer value only
// Number of arc generation iterations by small angle approximation before exact arc trajectory
// correction. This parameter maybe decreased if there are issues with the accuracy of the arc
// generations. In general, the default value is more than enough for the intended CNC applications
// of grbl, and should be on the order or greater than the size of the buffer to help with the
// computational efficiency of generating arcs.
#define N_ARC_CORRECTION 25 // Integer (1-255)
#endif
// Pin-assignments from Grbl 0.5
// #define STEPPERS_DISABLE_DDR DDRD
// #define STEPPERS_DISABLE_PORT PORTD
// #define STEPPERS_DISABLE_BIT 2
//
// #define STEPPING_DDR DDRC
// #define STEPPING_PORT PORTC
// #define X_STEP_BIT 0
// #define Y_STEP_BIT 1
// #define Z_STEP_BIT 2
// #define X_DIRECTION_BIT 3
// #define Y_DIRECTION_BIT 4
// #define Z_DIRECTION_BIT 5
//
// #define LIMIT_DDR DDRD
// #define LIMIT_PORT PORTD
// #define X_LIMIT_BIT 3
// #define Y_LIMIT_BIT 4
// #define Z_LIMIT_BIT 5
//
// #define SPINDLE_ENABLE_DDR DDRD
// #define SPINDLE_ENABLE_PORT PORTD
// #define SPINDLE_ENABLE_BIT 6
//
// #define SPINDLE_DIRECTION_DDR DDRD
// #define SPINDLE_DIRECTION_PORT PORTD
// #define SPINDLE_DIRECTION_BIT 7