Configurable Thermistor (#13888)
doggyfan
6 years ago
committed by
Scott Lahteine
parent
172abc305b
commit
23a8707ef1
@ -0,0 +1,81 @@
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/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2019 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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#include "../../inc/MarlinConfig.h"
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#if HAS_USER_THERMISTORS
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#include "../gcode.h"
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#include "../../module/temperature.h"
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/**
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* M305: Set (or report) custom thermistor parameters
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*
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* P[index] Thermistor table index
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* R[ohms] Pullup resistor value
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* T[ohms] Resistance at 25C
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* B[beta] Thermistor "beta" value
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* C[coeff] Steinhart-Hart Coefficient 'C'
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*
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* Format: M305 P[tbl_index] R[pullup_resistor_val] T[therm_25C_resistance] B[therm_beta] C[Steinhart_Hart_C_coeff]
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*
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* Examples: M305 P0 R4700 T100000 B3950 C0.0
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* M305 P0 R4700
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* M305 P0 T100000
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* M305 P0 B3950
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* M305 P0 C0.0
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*/
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void GcodeSuite::M305() {
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const int8_t t_index = parser.intval('P', -1);
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const bool do_set = parser.seen("BCRT");
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// A valid P index is required
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if (t_index >= (USER_THERMISTORS) || (do_set && t_index < 0)) {
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SERIAL_ECHO_START();
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SERIAL_ECHOLNPAIR("!Invalid index. (0 <= P <= ", int(USER_THERMISTORS - 1), ")");
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}
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else if (do_set) {
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if (parser.seen('R')) // Pullup resistor value
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if (!thermalManager.set_pull_up_res(t_index, parser.value_float()))
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SERIAL_ECHO_MSG("!Invalid series resistance. (0 < R < 1000000)");
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if (parser.seen('T')) // Resistance at 25C
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if (!thermalManager.set_res25(t_index, parser.value_float()))
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SERIAL_ECHO_MSG("!Invalid 25C resistance. (0 < T < 10000000)");
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if (parser.seen('B')) // Beta value
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if (!thermalManager.set_beta(t_index, parser.value_float()))
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SERIAL_ECHO_MSG("!Invalid beta. (0 < B < 1000000)");
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if (parser.seen('C')) // Steinhart-Hart C coefficient
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if (!thermalManager.set_sh_coeff(t_index, parser.value_float()))
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SERIAL_ECHO_MSG("!Invalid Steinhart-Hart C coeff. (-0.01 < C < +0.01)");
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} // If not setting then report parameters
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else if (t_index < 0) { // ...all user thermistors
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for (uint8_t i = 0; i < USER_THERMISTORS; i++)
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thermalManager.log_user_thermistor(i);
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}
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else // ...one user thermistor
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thermalManager.log_user_thermistor(t_index);
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}
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#endif // HAS_USER_THERMISTORS
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