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Diffstat (limited to 'Marlin/src/gcode/config/M672.cpp')
| -rw-r--r-- | Marlin/src/gcode/config/M672.cpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/Marlin/src/gcode/config/M672.cpp b/Marlin/src/gcode/config/M672.cpp new file mode 100644 index 0000000..af74230 --- /dev/null +++ b/Marlin/src/gcode/config/M672.cpp @@ -0,0 +1,98 @@ +/** + * Marlin 3D Printer Firmware + * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] + * + * Based on Sprinter and grbl. + * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm + * + * This program 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. + * + * This program 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 this program. If not, see <https://www.gnu.org/licenses/>. + * + */ + +#include "../../inc/MarlinConfig.h" + +#if ENABLED(DUET_SMART_EFFECTOR) && PIN_EXISTS(SMART_EFFECTOR_MOD) + +#include "../gcode.h" +#include "../../HAL/shared/Delay.h" +#include "../parser.h" + +/** + * The Marlin format for the M672 command is different than shown in the Duet Smart Effector + * documentation https://duet3d.dozuki.com/Wiki/Smart_effector_and_carriage_adapters_for_delta_printer + * + * To set custom sensitivity: + * Duet: M672 S105:aaa:bbb + * Marlin: M672 Saaa + * + * (where aaa is the desired sensitivity and bbb is 255 - aaa). + * + * Revert sensitivity to factory settings: + * Duet: M672 S105:131:131 + * Marlin: M672 R + */ + +#define M672_PROGBYTE 105 // magic byte to start programming custom sensitivity +#define M672_ERASEBYTE 131 // magic byte to clear custom sensitivity + +// +// Smart Effector byte send protocol: +// +// 0 0 1 0 ... always 0010 +// b7 b6 b5 b4 ~b4 ... hi bits, NOT last bit +// b3 b2 b1 b0 ~b0 ... lo bits, NOT last bit +// +void M672_send(uint8_t b) { // bit rate requirement: 1KHz +/- 30% + LOOP_L_N(bits, 14) { + switch (bits) { + default: { OUT_WRITE(SMART_EFFECTOR_MOD_PIN, !!(b & 0x80)); b <<= 1; break; } // send bit, shift next into place + case 7: + case 12: { OUT_WRITE(SMART_EFFECTOR_MOD_PIN, !!(b & 0x80)); break; } // send bit. no shift + case 8: + case 13: { OUT_WRITE(SMART_EFFECTOR_MOD_PIN, !(b & 0x80)); b <<= 1; break; } // send inverted previous bit + case 0: case 1: // 00 + case 3: { OUT_WRITE(SMART_EFFECTOR_MOD_PIN, LOW); break; } // 0010 + case 2: { OUT_WRITE(SMART_EFFECTOR_MOD_PIN, HIGH); break; } // 001 + } + DELAY_US(1000); + } +} + +/** + * M672 - Set/reset Duet Smart Effector sensitivity + * + * One of these is required: + * S<sensitivity> - 0-255 + * R - Flag to reset sensitivity to default + */ +void GcodeSuite::M672() { + if (parser.seen('R')) { + M672_send(M672_ERASEBYTE); + M672_send(M672_ERASEBYTE); + } + else if (parser.seenval('S')) { + const int8_t M672_sensitivity = parser.value_byte(); + M672_send(M672_PROGBYTE); + M672_send(M672_sensitivity); + M672_send(255 - M672_sensitivity); + } + else { + SERIAL_ECHO_MSG("!'S' or 'R' parameter required."); + return; + } + + OUT_WRITE(SMART_EFFECTOR_MOD_PIN, LOW); // Keep Smart Effector in NORMAL mode +} + +#endif // DUET_SMART_EFFECTOR && SMART_EFFECTOR_MOD_PIN |