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/*
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stepper.h - stepper motor driver: executes motion plans of planner.c using the stepper motors
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Part of Grbl
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Copyright (c) 2009-2011 Simen Svale Skogsrud
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Grbl is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Grbl is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grbl. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef stepper_h
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#define stepper_h
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#include "planner.h"
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// Initialize and start the stepper motor subsystem
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void st_init();
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// Block until all buffered steps are executed
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void st_synchronize();
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// The stepper subsystem goes to sleep when it runs out of things to execute. Call this
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// to notify the subsystem that it is time to go to work.
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void st_wake_up();
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// if DEBUG_STEPS is enabled, M114 can be used to compare two methods of determining the X,Y,Z position of the printer.
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// for debugging purposes only, should be disabled by default
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#ifdef DEBUG_STEPS
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extern volatile long count_position[NUM_AXIS];
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extern volatile int count_direction[NUM_AXIS];
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#endif
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extern block_t *current_block; // A pointer to the block currently being traced
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#endif
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