532c359a11
- Completely overhauled the g-code parser. It’s now 100%* compliant. (* may have some bugs). Being compliant, here are some of the major differences. - SMALLER and JUST AS FAST! A number of optimizations were found that sped things up and allowed for the more thorough error-checking to be installed without a speed hit. Trimmed a lot of ‘fat’ in the parser and still was able to make it significantly smaller than it was. - No default feed rate setting! Removed completely! This doesn’t exist in the g-code standard. So, it now errors out whenever it’s undefined for motions that require it (G1/2/3/38.2). - Any g-code parser error expunges the ENTIRE block. This means all information is lost and not passed on to the running state. Before some of the states would remain, which could have led to some problems. - If the g-code block passes all of the error-checks, the g-code state is updated and all motions are executed according to the order of execution. - Changes in spindle speed, when already running, will update the output pin accordingly. This fixes a bug, where it wouldn’t update the speed. - Update g-code parser error reporting. Errors now return detailed information of what exact went wrong. The most common errors return a short text description. For less common errors, the parser reports ‘Invalid gcode ID:20’, where 20 is a error ID. A list of error code IDs and their descriptions will be documented for user reference elsewhere to save flash space. - Other notable changes: - Added a print integer routine for uint8 variables. This saved significant flash space by switching from a heavier universal print integer routine. - Saved some flash space with our own short hypotenuse calculation - Some arc computation flash and memory optimizations.
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*
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probe.h - code pertaining to probing methods
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Part of Grbl
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Copyright (c) 2014 Sungeun K. Jeon
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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 probe_h
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#define probe_h
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// Values that define the probing state machine.
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#define PROBE_OFF 0 // No probing. (Must be zero.)
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#define PROBE_ACTIVE 1 // Actively watching the input pin.
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// Probe pin initialization routine.
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void probe_init();
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// Returns probe pin state.
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uint8_t probe_get_state();
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// Monitors probe pin state and records the system position when detected. Called by the
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// stepper ISR per ISR tick.
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void probe_state_monitor();
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#endif
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