Scott Lahteine
9 years ago
13 changed files with 1601 additions and 1302 deletions
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/**
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* Marlin 3D Printer Firmware |
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* |
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* Based on Sprinter and grbl. |
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm |
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* |
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* This program 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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* |
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* This program 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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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* |
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*/ |
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/**
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* endstops.cpp - A singleton object to manage endstops |
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*/ |
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#include "Marlin.h" |
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#include "endstops.h" |
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#include "stepper.h" |
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#include "ultralcd.h" |
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// TEST_ENDSTOP: test the old and the current status of an endstop
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#define TEST_ENDSTOP(ENDSTOP) (TEST(current_endstop_bits & old_endstop_bits, ENDSTOP)) |
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Endstops endstops; |
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Endstops::Endstops() { |
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enable_globally(ENABLED(ENDSTOPS_ONLY_FOR_HOMING)); |
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enable(true); |
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#if ENABLED(HAS_Z_MIN_PROBE) |
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enable_z_probe(false); |
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#endif |
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} // Endstops::Endstops
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void Endstops::init() { |
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#if HAS_X_MIN |
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SET_INPUT(X_MIN_PIN); |
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#if ENABLED(ENDSTOPPULLUP_XMIN) |
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WRITE(X_MIN_PIN,HIGH); |
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#endif |
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#endif |
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#if HAS_Y_MIN |
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SET_INPUT(Y_MIN_PIN); |
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#if ENABLED(ENDSTOPPULLUP_YMIN) |
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WRITE(Y_MIN_PIN,HIGH); |
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#endif |
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#endif |
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#if HAS_Z_MIN |
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SET_INPUT(Z_MIN_PIN); |
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#if ENABLED(ENDSTOPPULLUP_ZMIN) |
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WRITE(Z_MIN_PIN,HIGH); |
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#endif |
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#endif |
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#if HAS_Z2_MIN |
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SET_INPUT(Z2_MIN_PIN); |
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#if ENABLED(ENDSTOPPULLUP_ZMIN) |
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WRITE(Z2_MIN_PIN,HIGH); |
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#endif |
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#endif |
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#if HAS_X_MAX |
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SET_INPUT(X_MAX_PIN); |
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#if ENABLED(ENDSTOPPULLUP_XMAX) |
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WRITE(X_MAX_PIN,HIGH); |
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#endif |
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#endif |
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#if HAS_Y_MAX |
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SET_INPUT(Y_MAX_PIN); |
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#if ENABLED(ENDSTOPPULLUP_YMAX) |
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WRITE(Y_MAX_PIN,HIGH); |
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#endif |
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#endif |
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#if HAS_Z_MAX |
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SET_INPUT(Z_MAX_PIN); |
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#if ENABLED(ENDSTOPPULLUP_ZMAX) |
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WRITE(Z_MAX_PIN,HIGH); |
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#endif |
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#endif |
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#if HAS_Z2_MAX |
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SET_INPUT(Z2_MAX_PIN); |
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#if ENABLED(ENDSTOPPULLUP_ZMAX) |
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WRITE(Z2_MAX_PIN,HIGH); |
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#endif |
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#endif |
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#if HAS_Z_PROBE && ENABLED(Z_MIN_PROBE_ENDSTOP) // Check for Z_MIN_PROBE_ENDSTOP so we don't pull a pin high unless it's to be used.
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SET_INPUT(Z_MIN_PROBE_PIN); |
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#if ENABLED(ENDSTOPPULLUP_ZMIN_PROBE) |
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WRITE(Z_MIN_PROBE_PIN,HIGH); |
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#endif |
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#endif |
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} // Endstops::init
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void Endstops::report_state() { |
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if (endstop_hit_bits) { |
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#if ENABLED(ULTRA_LCD) |
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char chrX = ' ', chrY = ' ', chrZ = ' ', chrP = ' '; |
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#define _SET_STOP_CHAR(A,C) (chr## A = C) |
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#else |
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#define _SET_STOP_CHAR(A,C) ; |
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#endif |
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#define _ENDSTOP_HIT_ECHO(A,C) do{ \ |
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SERIAL_ECHOPAIR(" " STRINGIFY(A) ":", stepper.triggered_position_mm(A ##_AXIS)); \ |
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_SET_STOP_CHAR(A,C); }while(0) |
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#define _ENDSTOP_HIT_TEST(A,C) \ |
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if (TEST(endstop_hit_bits, A ##_MIN) || TEST(endstop_hit_bits, A ##_MAX)) \ |
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_ENDSTOP_HIT_ECHO(A,C) |
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SERIAL_ECHO_START; |
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SERIAL_ECHOPGM(MSG_ENDSTOPS_HIT); |
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_ENDSTOP_HIT_TEST(X, 'X'); |
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_ENDSTOP_HIT_TEST(Y, 'Y'); |
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_ENDSTOP_HIT_TEST(Z, 'Z'); |
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#if ENABLED(Z_MIN_PROBE_ENDSTOP) |
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#define P_AXIS Z_AXIS |
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if (TEST(endstop_hit_bits, Z_MIN_PROBE)) _ENDSTOP_HIT_ECHO(P, 'P'); |
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#endif |
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SERIAL_EOL; |
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#if ENABLED(ULTRA_LCD) |
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char msg[3 * strlen(MSG_LCD_ENDSTOPS) + 8 + 1]; // Room for a UTF 8 string
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sprintf_P(msg, PSTR(MSG_LCD_ENDSTOPS " %c %c %c %c"), chrX, chrY, chrZ, chrP); |
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lcd_setstatus(msg); |
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#endif |
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hit_on_purpose(); |
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#if ENABLED(ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED) && ENABLED(SDSUPPORT) |
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if (abort_on_endstop_hit) { |
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card.sdprinting = false; |
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card.closefile(); |
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stepper.quick_stop(); |
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disable_all_heaters(); // switch off all heaters.
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} |
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#endif |
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} |
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} // Endstops::report_state
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void Endstops::M119() { |
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SERIAL_PROTOCOLLN(MSG_M119_REPORT); |
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#if HAS_X_MIN |
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SERIAL_PROTOCOLPGM(MSG_X_MIN); |
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SERIAL_PROTOCOLLN(((READ(X_MIN_PIN)^X_MIN_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); |
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#endif |
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#if HAS_X_MAX |
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SERIAL_PROTOCOLPGM(MSG_X_MAX); |
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SERIAL_PROTOCOLLN(((READ(X_MAX_PIN)^X_MAX_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); |
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#endif |
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#if HAS_Y_MIN |
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SERIAL_PROTOCOLPGM(MSG_Y_MIN); |
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SERIAL_PROTOCOLLN(((READ(Y_MIN_PIN)^Y_MIN_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); |
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#endif |
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#if HAS_Y_MAX |
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SERIAL_PROTOCOLPGM(MSG_Y_MAX); |
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SERIAL_PROTOCOLLN(((READ(Y_MAX_PIN)^Y_MAX_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); |
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#endif |
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#if HAS_Z_MIN |
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SERIAL_PROTOCOLPGM(MSG_Z_MIN); |
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SERIAL_PROTOCOLLN(((READ(Z_MIN_PIN)^Z_MIN_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); |
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#endif |
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#if HAS_Z_MAX |
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SERIAL_PROTOCOLPGM(MSG_Z_MAX); |
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SERIAL_PROTOCOLLN(((READ(Z_MAX_PIN)^Z_MAX_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); |
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#endif |
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#if HAS_Z2_MAX |
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SERIAL_PROTOCOLPGM(MSG_Z2_MAX); |
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SERIAL_PROTOCOLLN(((READ(Z2_MAX_PIN)^Z2_MAX_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); |
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#endif |
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#if HAS_Z_PROBE |
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SERIAL_PROTOCOLPGM(MSG_Z_PROBE); |
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SERIAL_PROTOCOLLN(((READ(Z_MIN_PROBE_PIN)^Z_MIN_PROBE_ENDSTOP_INVERTING) ? MSG_ENDSTOP_HIT : MSG_ENDSTOP_OPEN)); |
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#endif |
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} // Endstops::M119
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#if ENABLED(Z_DUAL_ENDSTOPS) |
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// Pass the result of the endstop test
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void Endstops::test_dual_z_endstops(EndstopEnum es1, EndstopEnum es2) { |
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byte z_test = TEST_ENDSTOP(es1) | (TEST_ENDSTOP(es2) << 1); // bit 0 for Z, bit 1 for Z2
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if (stepper.current_block->steps[Z_AXIS] > 0) { |
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stepper.endstop_triggered(Z_AXIS); |
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SBI(endstop_hit_bits, Z_MIN); |
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if (!stepper.performing_homing || (z_test == 0x3)) //if not performing home or if both endstops were trigged during homing...
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stepper.kill_current_block(); |
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} |
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} |
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#endif |
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// Check endstops - Called from ISR!
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void Endstops::update() { |
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#define _ENDSTOP_PIN(AXIS, MINMAX) AXIS ##_## MINMAX ##_PIN |
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#define _ENDSTOP_INVERTING(AXIS, MINMAX) AXIS ##_## MINMAX ##_ENDSTOP_INVERTING |
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#define _ENDSTOP_HIT(AXIS) SBI(endstop_hit_bits, _ENDSTOP(AXIS, MIN)) |
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#define _ENDSTOP(AXIS, MINMAX) AXIS ##_## MINMAX |
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// UPDATE_ENDSTOP_BIT: set the current endstop bits for an endstop to its status
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#define UPDATE_ENDSTOP_BIT(AXIS, MINMAX) SET_BIT(current_endstop_bits, _ENDSTOP(AXIS, MINMAX), (READ(_ENDSTOP_PIN(AXIS, MINMAX)) != _ENDSTOP_INVERTING(AXIS, MINMAX))) |
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// COPY_BIT: copy the value of COPY_BIT to BIT in bits
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#define COPY_BIT(bits, COPY_BIT, BIT) SET_BIT(bits, BIT, TEST(bits, COPY_BIT)) |
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#define UPDATE_ENDSTOP(AXIS,MINMAX) do { \ |
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UPDATE_ENDSTOP_BIT(AXIS, MINMAX); \ |
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if (TEST_ENDSTOP(_ENDSTOP(AXIS, MINMAX)) && stepper.current_block->steps[_AXIS(AXIS)] > 0) { \ |
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_ENDSTOP_HIT(AXIS); \ |
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stepper.endstop_triggered(_AXIS(AXIS)); \ |
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} \ |
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} while(0) |
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#if ENABLED(COREXY) || ENABLED(COREXZ) |
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// Head direction in -X axis for CoreXY and CoreXZ bots.
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// If Delta1 == -Delta2, the movement is only in Y or Z axis
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if ((stepper.current_block->steps[A_AXIS] != stepper.current_block->steps[CORE_AXIS_2]) || (stepper.motor_direction(A_AXIS) == stepper.motor_direction(CORE_AXIS_2))) { |
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if (stepper.motor_direction(X_HEAD)) |
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#else |
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if (stepper.motor_direction(X_AXIS)) // stepping along -X axis (regular Cartesian bot)
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#endif |
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{ // -direction
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#if ENABLED(DUAL_X_CARRIAGE) |
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// with 2 x-carriages, endstops are only checked in the homing direction for the active extruder
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if ((stepper.current_block->active_extruder == 0 && X_HOME_DIR == -1) || (stepper.current_block->active_extruder != 0 && X2_HOME_DIR == -1)) |
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#endif |
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{ |
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#if HAS_X_MIN |
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UPDATE_ENDSTOP(X, MIN); |
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#endif |
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} |
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} |
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else { // +direction
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#if ENABLED(DUAL_X_CARRIAGE) |
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// with 2 x-carriages, endstops are only checked in the homing direction for the active extruder
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if ((stepper.current_block->active_extruder == 0 && X_HOME_DIR == 1) || (stepper.current_block->active_extruder != 0 && X2_HOME_DIR == 1)) |
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#endif |
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{ |
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#if HAS_X_MAX |
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UPDATE_ENDSTOP(X, MAX); |
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#endif |
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} |
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} |
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#if ENABLED(COREXY) || ENABLED(COREXZ) |
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} |
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#endif |
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#if ENABLED(COREXY) |
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// Head direction in -Y axis for CoreXY bots.
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// If DeltaX == DeltaY, the movement is only in X axis
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if ((stepper.current_block->steps[A_AXIS] != stepper.current_block->steps[B_AXIS]) || (stepper.motor_direction(A_AXIS) != stepper.motor_direction(B_AXIS))) { |
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if (stepper.motor_direction(Y_HEAD)) |
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#else |
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if (stepper.motor_direction(Y_AXIS)) // -direction
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#endif |
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{ // -direction
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#if HAS_Y_MIN |
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UPDATE_ENDSTOP(Y, MIN); |
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#endif |
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} |
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else { // +direction
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#if HAS_Y_MAX |
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UPDATE_ENDSTOP(Y, MAX); |
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#endif |
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} |
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#if ENABLED(COREXY) |
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} |
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#endif |
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#if ENABLED(COREXZ) |
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// Head direction in -Z axis for CoreXZ bots.
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// If DeltaX == DeltaZ, the movement is only in X axis
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if ((stepper.current_block->steps[A_AXIS] != stepper.current_block->steps[C_AXIS]) || (stepper.motor_direction(A_AXIS) != stepper.motor_direction(C_AXIS))) { |
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if (stepper.motor_direction(Z_HEAD)) |
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#else |
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if (stepper.motor_direction(Z_AXIS)) |
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#endif |
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{ // z -direction
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#if HAS_Z_MIN |
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#if ENABLED(Z_DUAL_ENDSTOPS) |
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UPDATE_ENDSTOP_BIT(Z, MIN); |
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#if HAS_Z2_MIN |
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UPDATE_ENDSTOP_BIT(Z2, MIN); |
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#else |
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COPY_BIT(current_endstop_bits, Z_MIN, Z2_MIN); |
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#endif |
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test_dual_z_endstops(Z_MIN, Z2_MIN); |
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#else // !Z_DUAL_ENDSTOPS
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#if ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN) && ENABLED(HAS_Z_MIN_PROBE) |
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if (z_probe_enabled) UPDATE_ENDSTOP(Z, MIN); |
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#else |
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UPDATE_ENDSTOP(Z, MIN); |
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#endif |
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#endif // !Z_DUAL_ENDSTOPS
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#endif // HAS_Z_MIN
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#if ENABLED(Z_MIN_PROBE_ENDSTOP) && DISABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN) && ENABLED(HAS_Z_MIN_PROBE) |
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if (z_probe_enabled) { |
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UPDATE_ENDSTOP(Z, MIN_PROBE); |
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if (TEST_ENDSTOP(Z_MIN_PROBE)) SBI(endstop_hit_bits, Z_MIN_PROBE); |
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} |
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#endif |
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} |
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else { // z +direction
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#if HAS_Z_MAX |
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#if ENABLED(Z_DUAL_ENDSTOPS) |
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UPDATE_ENDSTOP_BIT(Z, MAX); |
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#if HAS_Z2_MAX |
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UPDATE_ENDSTOP_BIT(Z2, MAX); |
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#else |
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COPY_BIT(current_endstop_bits, Z_MAX, Z2_MAX); |
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#endif |
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test_dual_z_endstops(Z_MAX, Z2_MAX); |
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#else // !Z_DUAL_ENDSTOPS
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UPDATE_ENDSTOP(Z, MAX); |
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#endif // !Z_DUAL_ENDSTOPS
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#endif // Z_MAX_PIN
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} |
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#if ENABLED(COREXZ) |
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} |
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#endif |
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old_endstop_bits = current_endstop_bits; |
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} // Endstops::update()
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@ -0,0 +1,105 @@ |
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/**
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* Marlin 3D Printer Firmware |
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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* |
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* Based on Sprinter and grbl. |
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm |
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* |
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* This program 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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* |
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* This program 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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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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* |
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*/ |
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/**
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* endstops.h - manages endstops |
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*/ |
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#ifndef ENDSTOPS_H |
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#define ENDSTOPS_H |
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enum EndstopEnum {X_MIN = 0, Y_MIN = 1, Z_MIN = 2, Z_MIN_PROBE = 3, X_MAX = 4, Y_MAX = 5, Z_MAX = 6, Z2_MIN = 7, Z2_MAX = 8}; |
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class Endstops { |
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public: |
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volatile char endstop_hit_bits; // use X_MIN, Y_MIN, Z_MIN and Z_MIN_PROBE as BIT value
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#if ENABLED(Z_DUAL_ENDSTOPS) |
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uint16_t current_endstop_bits = 0, |
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old_endstop_bits = 0; |
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#else |
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byte current_endstop_bits = 0, |
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|
old_endstop_bits = 0; |
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#endif |
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bool enabled = true; |
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bool enabled_globally = |
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#if ENABLED(ENDSTOPS_ONLY_FOR_HOMING) |
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false |
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#else |
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|
true |
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|
#endif |
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|
; |
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Endstops(); |
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||||
|
/**
|
||||
|
* Initialize the endstop pins |
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|
*/ |
||||
|
void init(); |
||||
|
|
||||
|
/**
|
||||
|
* Update the endstops bits from the pins |
||||
|
*/ |
||||
|
void update(); |
||||
|
|
||||
|
/**
|
||||
|
* Print an error message reporting the position when the endstops were last hit. |
||||
|
*/ |
||||
|
void report_state(); //call from somewhere to create an serial error message with the locations the endstops where hit, in case they were triggered
|
||||
|
|
||||
|
/**
|
||||
|
* Report endstop positions in response to M119 |
||||
|
*/ |
||||
|
void M119(); |
||||
|
|
||||
|
// Enable / disable endstop checking globally
|
||||
|
FORCE_INLINE void enable_globally(bool onoff=true) { enabled_globally = enabled = onoff; } |
||||
|
|
||||
|
// Enable / disable endstop checking
|
||||
|
FORCE_INLINE void enable(bool onoff=true) { enabled = onoff; } |
||||
|
|
||||
|
// Disable / Enable endstops based on ENSTOPS_ONLY_FOR_HOMING and global enable
|
||||
|
FORCE_INLINE void not_homing() { enabled = enabled_globally; } |
||||
|
|
||||
|
// Clear endstops (i.e., they were hit intentionally) to suppress the report
|
||||
|
FORCE_INLINE void hit_on_purpose() { endstop_hit_bits = 0; } |
||||
|
|
||||
|
// Enable / disable endstop z-probe checking
|
||||
|
#if ENABLED(HAS_Z_MIN_PROBE) |
||||
|
volatile bool z_probe_enabled = false; |
||||
|
FORCE_INLINE void enable_z_probe(bool onoff=true) { z_probe_enabled = onoff; } |
||||
|
#endif |
||||
|
|
||||
|
private: |
||||
|
|
||||
|
#if ENABLED(Z_DUAL_ENDSTOPS) |
||||
|
void test_dual_z_endstops(EndstopEnum es1, EndstopEnum es2); |
||||
|
#endif |
||||
|
}; |
||||
|
|
||||
|
extern Endstops endstops; |
||||
|
|
||||
|
#endif // ENDSTOPS_H
|
||||
Loading…
Reference in new issue